Relevant bibliographies by topics / Potassium nitrate

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Academic literature on the topic 'Potassium nitrate'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 June 2025

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Journal articles on the topic "Potassium nitrate"

1

Young, Jay A. "Potassium Nitrate." Journal of Chemical Education 82, no. 9 (2005): 1305. http://dx.doi.org/10.1021/ed082p1305.

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2

Aliev, Amil R., Isa R. Akhmedov, Murad G. Kakagasanov, Zakir A. Aliev, and Akhmed M. Amirov. "MOLECULAR RELAXATION IN BINARY SYSTEMS NaNO3 – NaNO2, KNO3 – KNO2." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, no. 7 (2018): 23. http://dx.doi.org/10.6060/ivkkt.20186107.5660.

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In the present study, the molecular relaxation processes in crystalline sodium nitrate NaNO3, crystalline sodium nitrite NaNO2, crystalline potassium nitrate KNO3, crystalline potassium nitrite KNO2, and in solid binary salt systems sodium nitrate – sodium nitrite NaNO3 – NaNO2 and potassium nitrate - potassium nitrite KNO3 – KNO2 were studied with the Raman spectroscopic methods. We have found that the relaxation time of the fully symmetric vibration of n1 (A) of the molecular nitrate anion NO3– in the solid binary salt systems “nitrate – nitrite” NaNO3 – NaNO2 or KNO3 – KNO2 is lower than in the individual crystalline nitrate NaNO3 or KNO3, respectively. It is shown that the increase in the rate of intramolecular relaxation is explained by the presence in the binary system of an additional relaxation mechanism of the vibrationally excited states of the nitrate ion NO3–. This relaxation mechanism of the nitrate ion NO3– in a binary system is associated with the excitation of a lower-frequency vibration of another anion (nitrite ion NO2–) and the "birth" of a lattice vibration (phonon). The frequency of this phonon is equal to the difference in the vibration frequencies of the nitrate ion NO3– and nitrite ion NO2–. It is established that the condition for the realization of such a relaxation mechanism is that the difference in the frequency of these oscillations of the nitrate ion NO3– and nitrite ion NO2– must correspond to the region of a sufficiently high density of states of the phonon spectrum of the solid binary salt system under study. The maximum frequency of the phonon spectrum of the system is determined by its Debye temperature. For ionic salt systems, the Debye temperature is always higher than 200 K, and often more than 300 K. Therefore, in the solid binary salt systems, the proposed relaxation mechanism is almost always relevant.Forcitation:Aliev A.R., Akhmedov I.R., Kakagasanov M.G., Aliev Z.A., Amirov A.M. Molecular relaxation in the binary systems NaNO3 – NaNO2, KNO3 – KNO2. Izv. Vyssh.Uchebn. Zaved. Khim. Khim. Tekhnol. 2018. V. 61. N 7. P. 23-30
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3

Danilina, Veronika V., Dmitry I. Chernov, Dmitry G. Cherkasov, and Konstantin K. Il’in. "Extractive crystallization of salts in the ternary systems sodium (potassium, cesium) nitrate – water – triethylamine." Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology 21, no. 2 (2021): 159–68. http://dx.doi.org/10.18500/1816-9775-2021-21-2-159-168.

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A comparative analysis of the results of our polythermal study of the ternary systems sodium (potassium, cesium) nitrate – water – triethylamine has been carried out to estimate the efficiency of the use of triethylamine in the extractive crystallization of alkali metal nitrates from water–salt solutions containing 43.0, 44.0, 45.0, 46.0, and 47.0 wt. % sodium nitrate in the range of 10.0–25.0°C, 20.0, 21.0, and 22.0 wt.% potassium nitrate and 18.0, 19.0, 20.0 and 21.0 wt. % cesium nitrate in the range of 20.0–25.0°C. The dependences of the yield of these salts on the amount of triethylamine added and temperature have been found. It has been established that the maximum yield of sodium nitrate (79.4%) is observed for the aqueous solution with 47 wt.% salt upon the introduction of 90 wt.% triethylamine at 25.0° C. The maximum yield in the systems potassium (cesium) nitrate – water – triethylamine was 68.9% (22 wt. % potassium nitrate solution) and 66.2% (21 wt. % cesium nitrate solution) at 20.0° C and 90 wt. % amine content.
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4

Mochinaga, Junichi, Kazuo Igarashi, and Yasuhiko Iwadate. "Molar volumes of the molten sodium nitrate-potassium nitrate-sodium nitrite system." Journal of Chemical & Engineering Data 30, no. 3 (1985): 274–76. http://dx.doi.org/10.1021/je00041a011.

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5

Guzii, Sergii G., Ihar Bazhelka, Volodymyr Romaniuk, and Svitlana Davydivna Lapovska. "Influence of Nitrate Species ANO<sub>3</sub> and ANO<sub>3</sub>·nH<sub>2</sub>O on Physico-Mechanical Properties of the Aluminosilicate Adhesives for Wood and Wooden Structures." Solid State Phenomena 325 (October 11, 2021): 143–49. http://dx.doi.org/10.4028/www.scientific.net/ssp.325.143.

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The article presents the results of studies of the effect of lithium, sodium, potassium and ammonium nitrates on the physical and mechanical properties of aluminosilicate adhesives intended for gluing wood and structures based on them. Nitrates were introduced into the aluminosilicate adhesive of composition Na2O·Al2O3·6SiO2·20H2O in amounts of 0.5, 1 and 1.5 wt. %. Changes in the shear strength along the fibers of substrates made of pine, beech, and oak wood were studied after 7 and 28 days of hardening of aluminosilicate adhesives in vivo. It is shown that for gluing pine wood it is most expedient to use adhesives containing lithium nitrate, potassium nitrate and ammonium nitrate is within 1.5 wt. %, the shearing strength along the fibers after 28 days of hardening is 1.7-1.8 times higher than the strength of the adhesive without additives. For gluing beech wood, it is most advisable to use adhesives containing potassium and ammonium nitrate in an amount of 1.5 wt. %, the shearing strength along the fibers after 28 days of hardening is 1.5 times lower than the strength of the adhesive without additives. For gluing oak wood, it is most advisable to use adhesives containing lithium nitrate, potassium nitrate and ammonium nitrate in amounts of 0.5 and 1.5 wt. %, the shear strength along the fibers increases by 1.3-1.5 times for 7 and 28 days of hardening compared to the strength of the adhesive without additives. According to the degree of influence on strength, modifying additives can be ranked in the series LiNO3×3H2O&gt;KNO3&gt;NH4NO3&gt;NaNO3.
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6

Smeets, Ellen T. H. C., Ronald P. Mensink, Jordi P. D. Kleinloog, and Peter J. Joris. "Acute Effects of Inorganic Nitrate Intake on Brachial and Femoral Flow-Mediated Vasodilation, and on Carotid Artery Reactivity Responses: Results of a Randomized, Double-Blinded, Placebo-Controlled Cross-Over Study in Abdominally Obese Men." Nutrients 14, no. 17 (2022): 3560. http://dx.doi.org/10.3390/nu14173560.

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Most trials on the effects of inorganic nitrate intake have focused on only one specific aspect of the endothelial cell response to a stimulus, thereby possibly missing other important effects. The aim of the present randomized, double-blinded, placebo-controlled cross-over study was therefore to investigate in eighteen healthy abdominally obese men (18–60 years, waist circumference ≥ 102 cm) acute effects of potassium nitrate on brachial and femoral flow-mediated vasodilation (FMD), and on carotid artery reactivity (CAR) to a cold pressure test. Participants received in random order a drink providing 10 mmol potassium nitrate (i.e., 625 mg of nitrate) or an iso-molar placebo drink with potassium chloride. Fasted and 4 h post-drink FMD and blood pressure measurements were performed. CAR responses were assessed at 4 h. Circulating nitrate plus nitrite concentration increased following nitrate intake (p = 0.003). Compared with placebo, potassium nitrate did not affect brachial (mean [95% confidence interval]: −0.2% [−2.5, 2.1], p = 0.86) and femoral FMD responses (−0.6% [−3.0; 1.7], p = 0.54). CAR responses were also not different (−0.8% [−2.5, 0.9], p = 0.32). Finally, changes in blood pressure and heart rate did not differ. No adverse events were observed. In conclusion, this trial did not provide evidence for effects of a single dose of inorganic nitrate on 4 h vascular endothelial function in abdominally obese men.
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7

GOVARI (Μ. ΓΚΟΒΑΡΗ), M., and A. PEXARA (Α. ΠΕΞΑΡΑ). "Nitrates and Nitrites in meat products." Journal of the Hellenic Veterinary Medical Society 66, no. 3 (2018): 127. http://dx.doi.org/10.12681/jhvms.15856.

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Nitrates and nitrites have been traditionally used as curing agents in the production of cured meat products. Beneficial effects of the addition of nitrates and nitrites to meat products are the improvement of quality characteristics as well as the microbiological safety. The nitrates and nitrites are mainly responsible for the development of the distinct flavor, the stability of the red color, as well as the protection against lipid oxidation in cured meat products. The nitrites show important bacteriostatic and bacteriocidal activity against several spoilage bacteria as well as foodborne pathogens found in meat products. The nitrites prevent the growth and toxin production by Clostridium botulinum. According to Commission Regulation (EU) No. 1129/2011, nitrates (sodium nitrate, E251; potassium nitrate, E252) and nitrites (potassium nitrite, E249; sodium nitrite, E250) are listed as permitted food additives. Nitrates are relatively non-toxic, but nitrites, and nitrites metabolic compounds such as nitric oxide and N-nitroso compounds, have raised concern over potential adverse health effects. Recently, the International Agency for Research on Cancer (IARC) concluded that ingested nitrates or nitrites are probable carcinogen to humans under conditions favoring the endogenous nitrosation. Legal limits for the addition of nitrates and nitrites have been set by several countries and EU [Commission Regulation (EU) No. 601/2014]. Several data from recent reviews conducted in several countries on the levels of nitrates and nitrites in cured meat products were summarized. In recent reviews, the residual levels of nitrites in cured meat samples have been constantly reduced and are in accordance with the legal limits set by most countries.
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8

Batal, K. M. "EFFECTS OF NITROGEN SOURCE, RATE, AND APPLICATION FREQUENCY ON YIELD AND QUALITY OF ONION." HortScience 26, no. 5 (1991): 490h—491. http://dx.doi.org/10.21273/hortsci.26.5.490h.

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Commercial N fertilizer formulations, ammonium nitrate, calcium nitrate, sodium nitrate, potassium nitrates (15-0-14 and 13-0-44) applied at 84 and 168 kg N/ha in 3 or 5 split applications did not affect total marketable yield of dry onion. Application frequencies causing an increase in total amount of N applied during the spring months (Feb.-Apr.) increased marketable yield by 5 MT/ha. Bulb decay was the highest when ammonium nitrate was applied, whereas the least number of decayed bulbs resulted from sodium nitrate applications. Plants grown with potassium nitrate (13-0-44) were most susceptible to cold injury. Ammonium nitrate and sodium nitrate applications produced the highest percentage of onions that bolted. The lowest percentage of plants showing bolting incidence resulted from calcium nitrate applications. Bolting of onions was closely associated with rapid growth and increased onion size. However, cold injury and bulb decay were not influenced by these growth factors.
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9

Boyko, Olexandra, and Viktor Brygadyrenko. "Nematicidal Activity of Inorganic Food Additives." Diversity 14, no. 8 (2022): 663. http://dx.doi.org/10.3390/d14080663.

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The food industry is not the only sphere of human activity where inorganic food additives are globally used. In certain concentrations, they are safe for people and agricultural animals. Nonetheless, they impose a negative impact on other classes of living organisms. Therefore, our objective was to determinine the influence of some inorganic food additives (alkalis, acids, salts) on the vitality of nematode larvae that parasitize agricultural animals: Strongyloides papillosus, Haemonchus contortus and Muellerius capillaris. We studied the effects of sodium hydroxide, potassium hydroxide, boric acid, phosphoric acid, potassium chloride, calcium chloride, sodium nitrite, potassium nitrite, sodium nitrate, potassium nitrate, ammonium bicarbonate, sodium bisulfite, sodium bisulfate, sodium sulfate, potassium sulfate, calcium sulfate, sodium thiosulfate, sodium metabisulfite, potassium metabisulfite, copper sulfate pentahydrate, tetrasodium pyrophosphate, sodium triphosphate, sodium borate decahydrate and talc. In in vitro experiments, the strongest effects were produced by alkalis sodium hydroxide and potassium hydroxide. In 24 h, 1% solutions of those substances killed 69% of larvae of S. papillosus, H. contortus and M. capillaris of various development stages. Sodium sulfate was effective against all stages of larvae of S. papillosus, and also against first-age M. capillaris. Nematocidal properties only against all stages of S. papillosus were exerted by copper sulfate pentahydrate. Non-invasive stages of S. papillosus nematodes were affected only by phosphoric acid, ammonium bicarbonate, calcium chloride, sodium nitrite, calcium sulfate, potassium metabisulfite, tetrasodium pyrophosphate, sodium triphosphate and the same stages of M. capillaris—by phosphoric acid, sodium bisulfite and potassium nitrite.
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10

Jassim Alrawi, Saad Thabit. "Effect of potassium nitrate plus vitamin C in feed of rabbits on the some biochemical parameters." Iraqi Journal of Veterinary Medicine 40, no. 2 (2017): 135–39. http://dx.doi.org/10.30539/iraqijvm.v40i2.125.

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This study is conducted at investigating the effect of potassium nitrate and vitamin C in feed of the rabbits on the some biochemical parameters. Twenty eight adult New-Zealand rabbits were divided randomly into four groups (7 rabbits each), they were fed potassium nitrate and vitamin C for 16 weeks as follow: Group 1 (G1) fed potassium nitrate (168 mg/ kg B.W./ daily), group 2 (G2) fed potassium nitrate (168 mg/ kg B.W./ daily) and vitamin C (50 mg/ kg B.W./ daily), group 3 (G3) fed potassium nitrate (168 mg/ kg B.W./ daily) and vitamin C (100 mg/ kg B.W./ daily) and group 4 (G4) fed basal ration as control group. Blood were collected from heart at zero, eight, twelve and sixteen weeks. The results showed a significant increase (P&lt;0.05) in cholesterol, triglyceride and blood nitrogen urea in the group that had fed potassium nitrate G1 compared with G4, whereas the groups that were fed vitamin C with potassium nitrate showed a mild decrease compared with group potassium nitrate that had been fed potassium nitrate alone (G1). In conclusion, the feeding rabbits with potassium nitrate caused an increase in cholesterol, triglyceride and blood urea concentration in the serum, whereas the vitamin C ameliorates this effect.
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