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Journal articles on the topic 'Thiocyanate method'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Ding, Chengrong, Guofu Zhang, Lidi Xuan, and Yiyong Zhao. "Sulfuryl Fluoride Promoted Thiocyanation of Alcohols: A Practical Method for Preparing Thiocyanates." Synlett 31, no. 14 (2020): 1413–17. http://dx.doi.org/10.1055/s-0040-1707151.

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A novel SO2F2-promoted thiocyanation method for the one-step synthesis of thiocyanates through C–O bond cleavage of readily available alcohols with ammonium thiocyanate as the thiocyanating agent was developed. The method avoids the use of additional catalyst, and a variety of (hetero)arene, alkene and aliphatic alcohols reacted with high efficiency in ethyl acetate under mild conditions to afford the corresponding thiocyanates in excellent to quantitative yields with broad functional-group compatibility.

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2

Chakravorti, M. C., and Gampa V. B. Subrahmanyam. "Electrosynthesis of thiocyanato and mixed ligand thiocyanato complexes of transition metals by the sacrificial dissolution of metal anodes." Canadian Journal of Chemistry 70, no. 3 (1992): 836–38. http://dx.doi.org/10.1139/v92-110.

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A general method for the electrosynthesis of anionic and mixed ligand nonelectrolytic thiocyanato complexes of transition metals has been developed by the oxidation of sacrificial metal anodes in aqueous, or aqueous ethanolic, medium containing ammonium thiocyanate at room temperature and at an applied potential of 2–7 V. The method is rapid and gives good yield with high purity. Keywords: electrosynthesis, thiocyanato complexes, mixed ligand thiocyanato complexes.

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3

Ashiegbu, Darlington C., David Nkhoesa, Rudolph Erasmus, and Herman Johanes Potgieter. "Efficient Photodegradation of Thiocyanate Ions in Mining Wastewater Using a ZnO-BiOI Heterojunction." Materials 17, no. 15 (2024): 3832. http://dx.doi.org/10.3390/ma17153832.

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Mining industries have long relied on cyanidation as the primary method for gold extraction, but this process generates thiocyanates as a problematic byproduct, posing challenges for wastewater treatment and recycling. The stability of thiocyanates makes their reduction or elimination in mining wastewater difficult. In this study, a p-n heterojunction of ZnO and BiOI was created and evaluated for its ability to photodegrade thiocyanate ions under simulated solar conditions. Various analytical techniques revealed a highly porous structure with a sponge-like morphology and agglomeration in the s

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4

Mallikarjunaswamy, A. M. M., Gouthami Kuruvalli, Khajamohiddin Syed, Vaddi Damodara Reddy, and Vipin A. Nair. "An Efficient and Eco-Friendly Procedure for Electrophilic Thiocyanation of Anilines and 1-(Substituted benzylidene)-2-phenyl Hydrazines." Chemistry 6, no. 3 (2024): 476–88. http://dx.doi.org/10.3390/chemistry6030027.

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Thiocyanates form an important class of organic compounds commonly found in natural products that exhibit excellent antimicrobial activity. The electrophilic thiocyanation is one of the most effective methods of introducing a -SCN functional group to the parent organic molecule. In this work, we explored an eco-friendly and highly efficient method for thiocyanation of anilines and 1-(substituted benzylidene)-2-phenylhydrazines using commercially available N-bromoscuccinimide (NBS) and potassium thiocyanate (KSCN). The optimized protocol afforded thiocyanates with good regioselectivity and exce

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5

Haque, M. Rezaul, and J. Howard Bradbury. "Simple Method for Determination of Thiocyanate in Urine." Clinical Chemistry 45, no. 9 (1999): 1459–64. http://dx.doi.org/10.1093/clinchem/45.9.1459.

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Abstract Background: It would be useful to develop a simple kit method for determination of thiocyanate in urine, which could be used to monitor cyanide overload in cassava-consuming populations. Methods: The method was based on the quantitative oxidation of thiocyanate in acid permanganate at room temperature in a closed vial with liberation of HCN, which reacted with a picrate paper. For semiquantitative analysis in the field, the colored picrate paper was matched with a color chart prepared using known amounts of KSCN. In the laboratory, a more accurate result was obtained by elution of the

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6

Milosavljevic, Milutin, Ivan Vukicevic, Veis Serifi, et al. "Optimization of the synthesis of N-alkyl and N,N-dialkyl thioureas from waste water containing ammonium thiocyanate." Chemical Industry and Chemical Engineering Quarterly 21, no. 4 (2015): 501–10. http://dx.doi.org/10.2298/ciceq141221006m.

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The optimized methods for N-alkyl and N,N-dialkyl substituted thioureas synthesis starting from ammonium thiocyanates, waste water constituent from the production of tetramethylthiuram monosulfide (TMTS), and alkyl amine, are presented in this work. Therefore, thioureas synthesis was developed in two ways: Method I - reaction of the thiocyanate and alkylamine in the presence of hydrochloric acid; Method II - reaction of the thiocyanate with benzoyl chloride following by amine addition in the first step, and base hydrolysis in the second step. The structure of the synthesized compounds was conf

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7

Basavaiah, Kanakapura, and Bankavadi Chikkaswamy Somashekar. "Argentimetric assay of ranitidine in bulk drug and in dosage forms." Ecletica Quimica 32, no. 1 (2007): 19–26. http://dx.doi.org/10.26850/1678-4618eqj.v32.1.2007.p19-26.

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Two simple, rapid and cost-effective methods based on titrimetric and spectrophotometrictechniques are described for the assay of RNH in bulk drug and in dosage forms using silver nitrate, mer-cury(II)thiocyanate and iron(III)nitrate as reagents. In titrimetry, an aqueous solution of RNH is treatedwith measured excess of silver nitrate in HNO 3 medium, followed by determination of unreacted silvernitrate by Volhard method using iron(III) alum indicator. Spectrophotometric method involve the addi-tion a known excess of mercury(II)thiocyanate and iron(III)nitrate to RNH, followed by the measurem

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8

Sulistyarti, Hermin, Spas D. Kolev, and Stephanie Lim. "DEVELOPMENT OF FLOW INJECTION METHOD FOR ONLINE DETERMINATION OF THIOCYANATE BASED ON OXIDATION BY PERMANGANATE." Indonesian Journal of Chemistry 10, no. 2 (2010): 167–71. http://dx.doi.org/10.22146/ijc.21455.

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The importance of developing method for thiocyanate becomes obvious, because thiocyanate can inhibit iodine uptake of thyroid gland leading to mumps disease. In this work, thiocyanate is oxidized by permanganate in the acid donor stream to cyanide, which is directly converted to hydrogen cyanide. Then, hydrogen cyanide diffuses through a Teflon membrane into acceptor stream containing nickel(II) in ammoniacal buffer to form tetracyanonickelate(II) which is detected spectrophotometrically at 267 nm. Analytical figures of merit were linear up to 50 mg L-1 for thiocyanate, with RSD of 1.34%, and

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9

Kokorekin, Vladimir A., Sergey V. Neverov, Vera N. Kuzina, and Vladimir A. Petrosyan. "A New Method for the Synthesis of 3-Thiocyanatopyrazolo[1,5-a]pyrimidines." Molecules 25, no. 18 (2020): 4169. http://dx.doi.org/10.3390/molecules25184169.

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In this article, we demonstrate how an original effective “metal-free” and “chromatography-free” route for the synthesis of 3-thiocyanatopyrazolo[1,5-a]pyrimidines has been developed. It is based on electrooxidative (anodic) C–H thiocyanation of 5-aminopyrazoles by thiocyanate ion leading to 4-thiocyanato-5-aminopyrazoles (stage 1, yields up to 87%) following by their chemical condensation with 1,3-dicarbonyl compounds or their derivatives (stage 2, yields up to 96%). This method is equally effective for the synthesis of 3-thiocyanatopyrazolo[1,5-a]pyrimidines, both without substituents and wi

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10

Iswanto, Ponco, Irvan Maulana Firdaus, Ahmad Fawwaz Dafaulhaq, Ahmad Ghifari Ramadhani, Maylani Permata Saputri, and Heny Ekowati. "Quantitative Structure-Activity Relationship of 3-Thiocyanate-1H-Indoles Derived Compounds as Antileukemia by AM1, PM3, and RM1 Methods." Jurnal Kimia Sains dan Aplikasi 26, no. 3 (2023): 109–17. http://dx.doi.org/10.14710/jksa.26.3.109-117.

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Cancer is a disease with fatal consequences; thus, searching for innovative compounds with anticancer properties remains an active pursuit. One of the highly promising candidates is a compound derived from 3-thiocyanato-1H-indoles. However, the number of derivative compounds is currently limited. A quantitative structure and activity relationship (QSAR) study was conducted on derivate compounds 3-thiocyanato-1H-indoles to establish equations that predict the anticancer activity of more effective derivatives. This study aims to compare the effectiveness of the AM1 (Austin Model 1), PM3 (Paramet

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11

Falkensson, M., P. Lundquist, H. Rosling, and B. Söurbo. "A Simple Method for Determination of Plasma Thiocyanate." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 25, no. 4 (1988): 422–23. http://dx.doi.org/10.1177/000456328802500418.

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We describe a method for the determination of thiocyanate in plasma from blood collected under field conditions in heparinised glass capillary tubes. After deproteinisation of plasma with perchloric acid, thiocyanate is directly determined colorimetrically by the König reaction with sodium hypochlorite as the chlorinating reagent and barbituric acid as the coupling agent. This simple method cannot be applied to urine as the latter contains interfering compounds.

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12

КУЗИНА Т, В. "КОМПЛЕКСНАЯ ОЦЕНКА ГЕНОТОКСИЧЕСКОЙ АКТИВНОСТИ ТИОЦИАНАТА КАЛИЯ". Естественные науки, № 4(17) (3 лютого 2025): 4–14. https://doi.org/10.54398/2500-2805.2024.17.4.001.

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Тиоцианат калия (роданид калия) является токсичным химическим веществом, которое имеет широкое распространение. Часто встречается в составе сточных вод химической промышленности. Особое внимание следует уделять оценке генотоксического воздействия отдельных веществ при экологическом мониторинге и выявлении реальной экологической безопасности сточных вод. Цель работы - определение потенциального канцерогенного воздействия тиоцианата калия на рыб с использованием цитогенетических методов исследования (микроядерный тест и метод ДНК-комет). Высокое содержание тиоцианата калия в воде не оказало види

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13

Zot, Patricija, Gregory Gin, and Lorin Bachmann. "Validation of a Thiocyanate Method on the Shimadzu UV-1800 Spectrophotometer." American Journal of Clinical Pathology 152, Supplement_1 (2019): S83—S84. http://dx.doi.org/10.1093/ajcp/aqz116.009.

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Abstract Objectives Sodium nitroprusside is used in treatment of hypertensive emergency. In the body, nitroprusside is metabolized to cyanide and cyanide to thiocyanate. Thiocyanate concentration is used to monitor nitroprusside therapy and to evaluate possible exposure to cyanide. A method validation study was performed to assess analytical performance of a new spectrophotometry-based laboratory-developed test for serum thiocyanate. Methods Serum proteins were precipitated using trichloroacetic acid and ferric nitrate. The resulting red-colored solution was measured spectrophotometrically at

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14

Feng, Yanting, Rijian Mo, Ling Wang, Chunxia Zhou, Pengzhi Hong, and Chengyong Li. "Surface Enhanced Raman Spectroscopy Detection of Sodium Thiocyanate in Milk Based on the Aggregation of Ag Nanoparticles." Sensors 19, no. 6 (2019): 1363. http://dx.doi.org/10.3390/s19061363.

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A method is developed for detecting the concentration of sodium thiocyanate (NaSCN) in milk based on surface-enhanced Raman scattering (SERS) technology. A trichloroacetic acid solution can be used to enhance the SERS signal because of its function in promoting the aggregation of Ag nanoparticles (Ag NPs). Meanwhile, the protein in milk would be precipitated as trichloroacetic acid added and the interference from protein could be reduced during the detection. In this work, the enhancement factor (EF) is 7. 56 × 105 for sodium thiocyanate in water and the limit of detection (LOD) is 0.002 mg/L.

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15

R. Labhade, Shivaji, and Kailas R. Labhade. "MONO-THIOCYANATO MERCURY (II) CHLORIDE: A NOVEL REAGENT FOR SPECTROPHOTOMETRIC DETERMINATION OF CHLORIDE IN BEERS." Rasayan Journal of Chemistry 14, no. 04 (2021): 2834–44. http://dx.doi.org/10.31788/rjc.2021.1446539.

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The mono-thiocyanato mercuric (II) chloride [Hg(SCN)Cl] reagent was prepared synthetically and implemented for spectrophotometric determination of chloride in beers. In determining chloride, a known aliquot of beer sample was added into Hg(SCN)Cl reagent. The displaced thiocyanate ions were subsequently used to form the red-colored ferric-thiocyanate complex. The absorbance of which was measured at 455-nm was found directly proportional to the concentration of chloride in the beer sample. The experiment was performed by the standard addition method using beer sample and reagent at a time, and

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16

Jiang, Bin, Shaojing Zhong, Hongliang Yu, et al. "Aqueous Two-Phase System–Ion Chromatography for Determination of Thiocyanate in Raw Milk." Separations 8, no. 11 (2021): 212. http://dx.doi.org/10.3390/separations8110212.

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Thiocyanate could effectively inhibit bacteria in milk and extend the shelf life of milk. However, excessive addition will lead to health risks. Therefore, the determination of thiocyanate in raw milk has received a lot of attention, but the determination could be interfered with by other components in raw milk and the pre-treatment of raw milk is complex. In this study, a new pretreatment method combined with ion chromatography (IC) for rapid and sensitive determination of thiocyanate is proposed. An acetonitrile/(NH4)2SO4 aqueous two-phase system (ATPS) was developed for the separation and e

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17

Sayyahi, Soheil, Saied Menati та Mehri Karamipour. "Al-MCM-41: An Efficient and Recyclable Heterogeneous Catalyst for the Synthesis ofβ-Hydroxy Thiocyanates in Water". Journal of Chemistry 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/561649.

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An efficient and green procedure has been developed for the synthesis ofβ-hydroxy thiocyanate by the regioselective ring opening of epoxides with NH4SCN. The reaction was carried out in water without any organic solvent at40°C, using Al-MCM-41 (a mesoporous aluminosilicate) as catalyst. In this method, several types of epoxides carrying electron-donating or withdrawing groups were rapidly converted to the correspondingβ-hydroxy thiocyanates in good from excellent yields. Various advantages associated with this protocol include simple workup procedure, short reaction times, high product yields,

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18

Gortsevich, S., P. Kravchenko, and A. Pichugina. "Application photometric method definitions with 4-(2-Pyridylazo)resorcinol for quantitative analysis and research on oxidative dissolution of copper in education thiocyanate complexes." Bulletin of Science and Practice 4, no. 12 (2018): 81–84. https://doi.org/10.5281/zenodo.2254068.

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The paper presents the results of the study of the kinetics of oxidative dissolution of copper in the formation of thiocyanate complexes. The thermodynamic probability of the process of dissolution of copper in potassium rhodanide in the presence of an oxidant — oxygen of the air is studied.  The dependences of the specific dissolution rate of copper (W, mol/cm2 C) on the concentration of thiocyanate (CH, mol/dm3), pH, temperature (T, K), disk speed (ω, s−1) were studied. The mechanisms of dissolution of copper Established modes of interaction. The optimal method fo

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19

Ma, Chuan Jing, Jing Ying Li, and Ren Jie Liu. "A Review of Thiocyanate Hydrometallurgy for the Recovery of Gold." Applied Mechanics and Materials 768 (June 2015): 53–61. http://dx.doi.org/10.4028/www.scientific.net/amm.768.53.

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Over the past century, numbers of hydrometallurgical processing technologies have been conducted for gold leaching in mining and second resource, such as cyanidation, being with high toxicity and low reaction rate, and non-cyanide---thiosulphate leaching and thiourea leaching, etc, having relatively high reagent consumption. Recently, ammonium thiocyanate was selected as leaching reagent in the laboratory study. Just as some papers shown, thiocyanate can be complexed tightly with Au+ or Au3+ to form water-soluble complexes according to the dynamic and thermodynamic system of thiocyanate gold a

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20

Khan, Jamal Nasir, Murad Ali Shah, Neelofar Nausheen, Pashmina Nisar, Hafiz Muhammad Abu Bakar Siddique, and Tanzeela. "Comparison of Thiocyanate Levels in Tobacco Users: A Cross Sectional Study." Journal of Saidu Medical College Swat 15, no. 2 (2025): 250–54. https://doi.org/10.52206/jsmc.2025.15.2.987.

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Background: Saliva, composed of over 99% water, serves as a diagnostic fluid for conditions like diabetes, rheumatoid arthritis, and hepatitis. It is easily accessible and non-invasive. Tobacco smoke contains harmful gases, including cyanide, which metabolizes into thiocyanate (SCN−), a key biomarker of smoke inhalation linked to neurological damage, delayed wound healing, and periodontal disease.Objectives: To investigate and compare thiocyanate as a biochemical marker in smokeless tobacco user, smoked tobacco users and non-tobacco users. Materials and Methods: Following standard protocols fi

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21

Chrimatopoulos, Christoforos, Kalliopi Papadopoulou, Theodora Tsilouli, and Vasilios Sakkas. "Exploring Salivary Thiocyanate as a Novel Biomarker of Physical Activity Response." Molecules 30, no. 11 (2025): 2476. https://doi.org/10.3390/molecules30112476.

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Salivary thiocyanate (SCN−) has long been recognized for its role in mucosal defense and antioxidant function, yet its behavior during physical activity remains unexplored. This study aimed to investigate salivary thiocyanate as a novel salivary biomarker responsive to exercise. A standard Vis–photometric method (thiocyanatoiron-complex formation) was utilized and validated for the rapid quantification of thiocyanate in saliva. The method was applied to two experimental setups: (i) a controlled treadmill protocol involving incremental running intensities (20%, 60%, and 90% VO2max-mL/kg/min), a

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22

Sitohang, Urbanus, Toto Sudargo, and Dhuto Widagdo. "Asupan yodium dan asupan goitrogenik hubungannya dengan status gangguan akibat kekurangan yodium (GAKY) pada anak sekolah dasar di Kabupaten Dairi Provinsi Sumatera Utara." Jurnal Gizi Klinik Indonesia 5, no. 2 (2008): 60. http://dx.doi.org/10.22146/ijcn.17551.

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Background: Iodine deficiency disorder (IDD) is a health problem which affects the quality of human resources. IDD is caused by lack of iodine substance. The substance is needed for numerous syntheses and metabolism in the body, particularly thyroid glands. IDD may also be caused by high consumption goitrogenic substance.Objective: The study was meant to identify relationship between iodine and thiocyanate intake and IDD, and to identify differences in iodine and thiocyanate intake based on endemic level.Method: This was an observational study with cross sectional design. Method used were palp

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23

Bourdoux, P. "A Simple Method for Determination of Plasma Thiocyanate." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 26, no. 3 (1989): 303. http://dx.doi.org/10.1177/000456328902600324.

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24

Li, Lijun, Anbao Wang, Pingang He, and Yuzhi Fang. "Photokinetic voltammetric method for the determination of thiocyanate." Fresenius' Journal of Analytical Chemistry 367, no. 7 (2000): 649–52. http://dx.doi.org/10.1007/s002160000424.

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25

Kochetkov, Nicolay K., Evgeny M. Klimov, Nelly N. Malysheva, and Alexey V. Demchenko. "Stereospecific 1,2-cis-glycosylation: a modified thiocyanate method." Carbohydrate Research 232, no. 1 (1992): C1—C5. http://dx.doi.org/10.1016/s0008-6215(00)91007-3.

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26

Wahi, Anu, and L. R. Kakkar. "Microdetermination of rhenium by a modified thiocyanate method." Fresenius' Journal of Analytical Chemistry 338, no. 3 (1990): 298. http://dx.doi.org/10.1007/bf00323028.

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27

Flieger, Kawka, and Tatarczak-Michalewska. "Levels of the Thiocyanate in the Saliva of Tobacco Smokers in Comparison to e-Cigarette Smokers and Nonsmokers Measured by HPLC on a Phosphatidylcholine Column." Molecules 24, no. 20 (2019): 3790. http://dx.doi.org/10.3390/molecules24203790.

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The aim of the study was to estimate the thiocyanate levels in saliva of cigarette smokers in comparison to e-cigarette smokers and nonsmokers. To improve our understanding of the influence of smoking on the oral level of thiocyanate, we conducted an assessment of human saliva, in 24 individuals (eight tobacco smokers, eight e-cigarette smokers, and eight nonsmokers). High-Performance Liquid Chromatography with ultraviolet detection (HPLC-UV) using a unique phosphatidylcholine column was applied in this assay. Thiocyanate ion was detected directly by its absorbance at 210 nm. The method presen

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Wang, Donglan, Ying Zhang, Yayu He, et al. "Associations of Perchlorate, Nitrate, and Thiocyanate with Bone Mineral Density in the US General Population: A Multi-Cycle Study of NHANES 2011–2018." Nutrients 16, no. 16 (2024): 2658. http://dx.doi.org/10.3390/nu16162658.

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Background: Perchlorate, nitrate, and thiocyanate are widely recognized as endocrine disrupting chemicals, which are closely related to thyroid function. Animal and human studies show a correlation between thyroid hormone and bone mineral density (BMD). However, it remains unknown whether perchlorate, nitrate, and thiocyanate were associated with BMD. This study aimed to explore the association between perchlorate, nitrate, and thiocyanate exposure with BMD. Method: A cross-sectional analysis among 5607 participants from the 2011–2018 National Health and Nutrition Examination Survey (NHANES) w

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Kanakapura, Basavaiah, Veeraiah Ramakrishna, and Urdigere Rangachar Anilkumar. "Sensitive spectrophotometric determination of lansoprazole in pharmaceuticals using ceric ammonium sulphate based on redox and complex formation reactions." Ecletica Quimica 31, no. 3 (2006): 67–74. http://dx.doi.org/10.26850/1678-4618eqj.v31.3.2006.p67-74.

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Two simple sensitive and cost-effective spectrophotometric methods are described forthe determination of lansoprazole (LPZ) in bulk drug and in capsules using ceric ammoniumsulphate (CAS), iron (II), orthophenanthroline and thiocyanate as reagents. In both methods, anacidic solution of lansoprazole is treated with a measured excess of CAS followed by thedetermination of unreacted oxidant by two procedures involving different reaction schemes. Thefirst method involves the reduction of residual oxidant by a known amount of iron(II), and theunreacted iron(II) is complexed with orthophenanthroline

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Galvin, K. T., M. J. Kerin, G. Williams, K. L. Gorst, R. H. Morgan, and R. C. Kester. "Comparison of Three Methods for Measuring Cigarette Smoking in Patients with Vascular Disease." Cardiovascular Surgery 2, no. 1 (1994): 48–51. http://dx.doi.org/10.1177/096721099400200111.

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Although smoking has been identified as an independent risk factor in peripheral vascular disease, smokers do not accurately report their habit. Therefore, a cheap, non-invasive, objective method of measuring smoking behaviour in vascular surgical units is desirable. The value of end-expiratory carbon monoxide monitoring, which is both simple and inexpensive, was compared with two well-established, validated techniques (serum thiocyanate and blood carboxyhaemoglobin levels). Some 33 surgical patients with peripheral vascular disease provided samples of expired air for measurement of carbon mon

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Kharat, Amol R., Farooqui Zakerab, and Kiran Ramesh Kharat. "Free Radical Scavenging Potential of Mentha arvensis of South Gujarat: Evidence from In-vitro Assay." Journal of Drug Delivery and Therapeutics 9, no. 3 (2019): 263–68. http://dx.doi.org/10.22270/jddt.v9i3.2866.

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Present work was undertaken to evaluate efficacy of aqueous and methanol extracts Mentha arvensis leaves as free radical scavenger. The free radical scavenging activity was evaluated by nitric oxide scavenging method, hydrogen peroxide scavenging method and ferric thiocyanate method. The result of the studies was compared with the standard solution of Ascorbic Acid (Vitamin C) treated with same reagent. The results of all the studies showed significant free radical scavenging activity in both aqueous and methanolic extracts of Mentha arvensis and methanolic extract showed the highest free radi

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Chiang, Y., and A. J. Kresge. "Determination of the acidity constant of isothiocyanic acid in aqueous solution." Canadian Journal of Chemistry 78, no. 12 (2000): 1627–28. http://dx.doi.org/10.1139/v00-152.

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Changes in absorbance of the thiocyanate ion (SCN) at λ = 220 nm, measured in concentrated aqueous perchloric acid solution, were analyzed using a titration curve expression containing the Xo excess acidity function; this provided the acidity constant Ka = 19.2 ± 1.1 M, pKa = 1.28 ± 0.03, for isothiocyanic acid (SCNH).Key words: isothiocyanic acid (acidity of), thiocyanate ion (basicity of), acidbase titration in concentrated aqueous acids, Xo excess acidity function, CoxYates method.

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Vesey, C. J., H. McAllister, and R. M. Langford. "A Safer Method for the Measurement of Plasma Thiocyanate." Journal of Analytical Toxicology 23, no. 2 (1999): 134–36. http://dx.doi.org/10.1093/jat/23.2.134.

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34

Hossain, A. "Modified guanidinium thiocyanate method for human sperm DNA isolation." Molecular Human Reproduction 3, no. 11 (1997): 953–56. http://dx.doi.org/10.1093/molehr/3.11.953.

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35

Serkov, A. T., and G. A. Budnitskii. "Mechanism of polyacrylonitrile fibre spinning by the thiocyanate method." Fibre Chemistry 25, no. 5 (1994): 335–41. http://dx.doi.org/10.1007/bf00551621.

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36

Keyvanfard, Mohsen, Khadijeh Alizad, and Parinaz Elahian. "Determination of Thiocyanate by Kinetic Spectrophotometric Flow Injection Analysis." Journal of Chemistry 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/147364.

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A simple and rapid flow injection spectrophotometric method has been developed for the determination of amount of thiocyanate in wastewaters and well water samples. It is based on the reaction of thiocyanate in hydrochloric acid with janus green and bromate. Reaction was monitored spectrophotometrically by measuring janus green absorbance atλmax=554 nm. The calibration graph was linear over the range 0.02–1.0 μg mL−1and the detection limit was 0.016μg mL−1(s/n=3). The throughput was 25 samples per hour.

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37

Demirata, Birsen, Resat Apak, Hüseyin Afsar, and Izzet Tor. "Spectrophotometric Determination of Organic Nitrogen by a Modified Lassaigne Method and Its Application to Meat Products and Baby Food." Journal of AOAC INTERNATIONAL 85, no. 4 (2002): 971–77. http://dx.doi.org/10.1093/jaoac/85.4.971.

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Abstract A modified Lassaigne method was developed for N determination based on fusion of the organic substance with metallic Na, conversion of the cyanide in the aqueous leachate to thiocyanate by ammonium polysulfide treatment, and colorimetric measurement of the thiocyanate formed by the addition of excessive ferric ions in acidic medium. The mean molar absorptivity of the Fe(NCS)2+ complex at 480 nm is 2.96 × 103 L/mol·cm, enabling quantitation of 0.25–7.72 ppm N (linear range) in the final solution. The relative amounts of Na, (NH4)2S2, and Fe(III) with respect to nitrogen in the analyte

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Mauri, Luca, Alessia Colombo, Claudia Dragonetti, Dominique Roberto, and Francesco Fagnani. "Recent Investigations on Thiocyanate-Free Ruthenium(II) 2,2′-Bipyridyl Complexes for Dye-Sensitized Solar Cells." Molecules 26, no. 24 (2021): 7638. http://dx.doi.org/10.3390/molecules26247638.

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Three decades ago, dye-sensitized solar cells (DSSCs) emerged as a method for harnessing the energy of the sun and for converting it into electricity. Since then, a lot of work has been devoted to create better global photovoltaic efficiencies and long term stability. Among photosensitizers for DSSCs, thiocyanate-free ruthenium(II) complexes have gained increasing interest due to their better stability compared to conventional thiocyanate-based complexes, such as benchmark dyes N719 and Z907. In this mini-review, two classes of thiocyanate-free Ru(II) complexes are presented: (a) bis-bipyridyl

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Faqih, Khoirul, Rong Cao, Saeed Ahmad, and Muntholib Muntholib. "Synthesis and Characterization of Complex Compounds of Cadmium (II) Nitrate, Potassium Thiocyanate, and 2,2-Bipyridine Ligand." Frontier Advances in Applied Science and Engineering 1, no. 2 (2024): 73–81. http://dx.doi.org/10.59535/faase.v1i2.181.

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A complex compound of a central atom of cadmium(II), potassium thiocyanate, and a 2,2'-bipy ligand with a stoichiometric ratio of 1:2:2 has never been reported. The aim of this research is to determine the coordination pattern of the 2,2'-bipy ligand and thiocyanate ion and the stability of the compounds formed. Synthesis of complex compounds was carried out using the direct reaction method, characterization of the complex compounds produced using the melting point test, FTIR analysis, SEM-EDX analysis, DHL test, thiocyanate ion qualitative test, and Gaussian 09W analysis. This synthesis produ

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Khoirul, Rong Cao, and Antonio Zucca. "Synthesis and Characterization of Complex Compounds of Cadmium (II) Nitrate, Potassium Thiocyanate, and 2,2-Bipyridine Ligand." Frontier Advances in Applied Science and Engineering 2, no. 1 (2024): 46–56. http://dx.doi.org/10.59535/faase.v2i1.179.

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A complex compound of a central atom of cadmium(II), potassium thiocyanate, and a 2,2'-bipy ligand with a stoichiometric ratio of 1:2:2 has never been reported. The aim of this research is to determine the coordination pattern of the 2,2'-bipy ligand and thiocyanate ion and the stability of the compounds formed. Synthesis of complex compounds was carried out using the direct reaction method, characterization of the complex compounds produced using the melting point test, FTIR analysis, SEM-EDX analysis, DHL test, thiocyanate ion qualitative test, and Gaussian 09W analysis. This synthesis produ

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Kratochvíl, Bohumil, Jan Ondráček, Jaroslav Maixner, Josef Macíček, and Václav Haber. "Structure of a palladium(II) complex with a non-symmetrical tetradentate Schiff base, [Pd(C14H20N3O)]NCS." Collection of Czechoslovak Chemical Communications 56, no. 9 (1991): 1900–1907. http://dx.doi.org/10.1135/cccc19911900.

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The structure of (1-phenyl-3-{2-[(2-aminoethyl)amino]ethylimino}-1-buten-1-olato-O,N,N’,N”) palladium(II) thiocyanate, [Pd(baden)]NCS, was solved by heavy-atom method and refined anisotropically ro R = 0.026 for 2 851 unique observed reflections. The title complex crystallizes in the Pc21b space group with a = 11.919(2), b = 14.061(2), c = 19.769(3)Å, Z = 8. The structure contains two symmetrical-independent molecules, each includes the palladium complex cation and thiocyanate anion. The cation formed by the baden ligand consists of one six-membered and two five-membered chelate rings and the

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42

Rojanarata, Theerasak, Kwanrutai Waewsa-Nga, Parin Buacheen, Praneet Opanasopit, and Tanasait Ngawhirunpat. "Development of Greener and Safer Assays for Hydrochloride Drugs: Photometric Microtitration of Phenylpropanolamine Hydrochloride and Metformin Hydrochloride." Advanced Materials Research 361-363 (October 2011): 1892–96. http://dx.doi.org/10.4028/www.scientific.net/amr.361-363.1892.

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An environmentally friendlier, safer and saver method is described for the assay of drugs as hydrochloride salts namely metformin hydrochloride and phenylpropanolamine hydrochloride via the determination of their chloride contents. In this method, an aqueous solution of drug was treated with measured excess of silver nitrate in the presence of nitric acid, followed by the determination of unreacted silver nitrate by Volhard’s method using ammonium thiocyanate titrant and iron(III) alum indicator. To minimize the reagents consumed and wastes generated, the reactions were scaled down to less tha

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Anis, Sara, Mervat Hosny, Hisham Abdellatef, and Mohamed El-Balkiny. "Spectrophotometric, atomic absorption and conductometric analysis of tramadol hydrochloride." Chemical Industry and Chemical Engineering Quarterly 17, no. 3 (2011): 269–82. http://dx.doi.org/10.2298/ciceq101206012a.

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Six simple and sensitive spectroscopic and conductometric procedures (A-F) were developed for the determination of tramadol hydrochloride. Method A,B and C are based on the reaction of cobalt (II) thiocyanate with tramadol to form stable ternary complex, which could be measured by spectrophotometric (method A), atomic absorption (method B) or conductometric (method C) procedures. Method (D and E) depended on the reaction of molybdenum thiocyanate with tramadol to form stable ternary complex, measured by spectrophotometric means (method D), or by atomic absorption procedures (method E), while m

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Igov, Vladimir, Ranko Simonovic, and Rangel Igov. "Kinetic determination of ultramicro amounts of thiocyanate." Facta universitatis - series: Physics, Chemistry and Technology 2, no. 4 (2002): 209–13. http://dx.doi.org/10.2298/fupct0204209i.

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A kinetic method is suggested for determing traces of thiocyanate on the basis of their activating effect on the Fe(III) catalysis of oxidation of 4-amino-N,Ndiethylaniline sulphate (ANNS) by hydrogen-peroxide. The sensitivity of the method is 50 ng/cm3. The probably relative error ranges between 5,5-10,5% for concentration interval 300-70 ng/cm3 NCS-. Kinetic equation were proposed for the investigated process. The method has relatively good selectivity.

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Yi, Bing, Ning Yan, Niannian Yi та ін. "Oxidative cyanation of N-aryltetrahydroisoquinoline induced by visible light for the synthesis of α-aminonitrile using potassium thiocyanate as a “CN” agent". RSC Advances 9, № 51 (2019): 29721–25. http://dx.doi.org/10.1039/c9ra06120g.

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Wu, Wei Ming, Ding Li, and Hai Yan Du. "The Effect of Corrosion Inhibitor in Hydrofluoric Acid Medium." Advanced Materials Research 750-752 (August 2013): 2258–62. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.2258.

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The experiments were done to find some good corrosion inhibitors for mild steel in 5% HF solution by the method of weight loss and electrochemistry including polarization curves and electrochemical impedance spectroscopy (EIS). Results show that the thiourea, potassium thiocyanate, and hexamethylenetetramine have good inhibition effect for mild steel in 5% HF solution, especially potassium thiocyanate and thiourea. Their corrosion resistance was greatly enhanced in the presence of tested inhibitor. Thiourea is an anodic type inhibitor and its inhibition efficiencies up to 99.88% can be obtaine

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Zhang, Keyuan, Tianbing Liang, Yulong Wang, et al. "Oxidative thiocyanation of allylic alcohols: an easy access to allylic thiocyanates with K₂S₂O₈ and NH₄SCN." Organic Chemistry Frontiers 9, no. 4 (2022): 966–72. http://dx.doi.org/10.1039/d1qo01710a.

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48

Yang, Shida, Wenqing Liu, Lijian Zuo, et al. "Thiocyanate assisted performance enhancement of formamidinium based planar perovskite solar cells through a single one-step solution process." Journal of Materials Chemistry A 4, no. 24 (2016): 9430–36. http://dx.doi.org/10.1039/c6ta02999j.

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Fahmi, Azrul, Widodo Budi Kurniawan, and Anisa Indriawati. "Uji Linieritas Kalium Tiosianat (KSCN) Sebagai Indikator Kolorimetri Untuk Mendeteksi Konsentrasi Fe Pada Air." Jurnal Riset Fisika Indonesia 2, no. 2 (2022): 26–30. http://dx.doi.org/10.33019/jrfi.v2i2.3215.

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The method of testing water quality that is in great demand by researchers because it is practical and inexpensive, one of which is the colorimetric method. To detect the concentration of Fe using a colorimetric method used a colorimetric indicator such as potassium thiocyanate (KSCN). KSCN is a compound consisting of the elements potassium (K), sulfur (S), carbon (C), and nitrogen (N) which can produce an orange color when reacted with Fe. In this study, 20 variations of Fe solution were used with a concentration difference of 0.5 ppm starting from 0.5 ppm to 10 ppm and obtained a correlation

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Campos, Gabrielle Silveira de, Ricardo Antônio Ayub, Rafael Mazer Etto, Carolina Weigert Galvão, Marília Aparecida Stroka, and Juliana Inaba. "High-quality total RNA isolation from melon (Cucumis melo L.) fruits rich in polysaccharides." Semina: Ciências Agrárias 38, no. 4 (2017): 2201. http://dx.doi.org/10.5433/1679-0359.2017v38n4p2201.

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Melon, a member of the family Cucurbitaceae, is the fourth most important fruit in the world market and, on a volume basis, is Brazil’s main fresh fruit export. Many molecular techniques used to understand the maturation of these fruits require high concentrations of highly purified RNA. However, melons are rich in polyphenolic compounds and polysaccharides, which interfere with RNA extraction. This study aimed to determine the most appropriate method for total RNA extraction from melon fruits. Six extraction buffers were tested: T1) guanidine thiocyanate/phenol/chloroform; T2) sodium azide/?-

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