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Journal articles on the topic 'Thorium nitrate'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

H., N. Sheikh, L. Kalsotra B., and Shree Khema. "Complexes of thorium(IV) salts with morpholinomethylurea and related ligands." Journal of Indian Chemical Society Vol. 80, Oct 2003 (2003): 909–11. https://doi.org/10.5281/zenodo.5839340.

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Department of Chemistry, University of Jammu, Jammu-180 006, India <em>E-mail : </em>kalsotrabl@rediffmail.com <em>Manuscript received 22 April 2002, revised 12 May 2003, accepted 17 June 2003</em> Complexes of thorium(IV) halides and thorium(IV) nitrate with morpholinomethylurea and related ligands have been synthesized. The studies reveal 1 : 1 complexes of thorium nitrate, thorium chloride and thorium bromide with the ligands whereas thorium iodide forms 1 : 4 complexes. The ligands are bidentate coordinating through heterocyclic N and carbonyl O (or thiocarbonyl S) in 1 : 1 complexes,

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2

Gupta, R., S. K. Gupta, and S. K. Aggarwal. "Novel synthesis and characterization of nanocrystalline thoria from oxalate precursor via reverse micellar route." Radiochimica Acta 101, no. 1 (2013): 7–12. http://dx.doi.org/10.1524/ract.2013.1988.

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Abstract Nanoparticles of thorium oxalate were synthesized by the reaction of thorium nitrate and ammonium oxalate by the microemulsion method. The Th02 nanoparticles were obtained by heating thorium oxalate nanoparticles at 500 °C in air. The oxalate and oxide nanoparticles of thorium were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), thermogravimetric analysis (TGA) and selected area electron diffraction (SAED). X-ray diffraction studies showed the mono-phasic nature of the powder thoria. The particle size was obtained from X-ray line broadening (~l

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3

Novoselov, I. Yu. "SYNTHESIS OF URANIUM-THORIUM OXIDE POWDERS IN LOW-TEMPERATURE PLASMA OF HIGH FREQUENCY TORCH DISCHARGE." Eurasian Physical Technical Journal 19, no. 1 (39) (2022): 50–54. http://dx.doi.org/10.31489/2022no1/50-54.

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The article discusses the process of plasma chemical synthesis of uranium-thorium oxide powders for a new generation dispersion nuclear fuel. In the course of research, the combustion parameters of the precursors were calculated. Precursors were water-organic nitrate solutions based on uranyl nitrate and thorium nitrate (fissile components), as well as magnesium nitrate (matrix material). The organic component of the solutions was acetone due to the sufficiently high calorific value and good mutual solubility. In the course of thermodynamic calculations, the optimal modes of processing of the

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4

Abrão, Alcı́dio, Antonio Alves de Freitas, and Fatima Maria Sequeira de Carvalho. "Preparation of highly pure thorium nitrate via thorium sulfate and thorium peroxide." Journal of Alloys and Compounds 323-324 (July 2001): 53–56. http://dx.doi.org/10.1016/s0925-8388(01)00998-7.

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5

Li, Yuxiang, Zhehui Weng, Yanlong Wang, et al. "Centrosymmetric and chiral porous thorium organic frameworks exhibiting uncommon thorium coordination environments." Dalton Transactions 44, no. 48 (2015): 20867–73. http://dx.doi.org/10.1039/c5dt03363b.

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The solvothermal reaction of thorium nitrate and tris-(4-carboxylphenyl)phosphine oxide in DMF affords a centrosymmetric porous thorium organic framework compound [Th(TPO)(OH)(H<sub>2</sub>O)]·8H<sub>2</sub>O (1).

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6

N., Gopalakrishna Bhat, and Narayana B. "Indirect complexometric determination of thorium(IV) using tartaric acid as masking agent." Journal of Indian Chemical Society Vol. 89, Mar 2012 (2012): 427–28. https://doi.org/10.5281/zenodo.5760339.

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Department of Chemistry, Srinivas Institute of Technology, Valachil, Mangalore-574 143, Karnataka, India E-mail : shreedakumar@yahoo.co.in Manuscript received 05 October 2009, revised 07 July 2011, accepted 21 July 2011 A complexometric method for the determination of thorium(IV) in presence of other metal ions based on the selective masking ability of tartaric acid towards thorium is described. Thorium(IV) present in a given sample solution is first complexed with a known excess of EDTA and the surplus EDTA is titrated against bismuth nitrate solution at pH 2-3 using xylenol orange as indicat

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7

K., N. MOHANA, S. Y. ATHIRAJAN H., and RANGASWAMY. "Conductometric Study of the Interaction of Bromamine-B with Silver(I), Mercury(II), Thorium(IV) and Zirconium(IV) Solutions." Journal of Indian Chemical Society Vol. 74, Oct 1997 (1997): 765–68. https://doi.org/10.5281/zenodo.5896725.

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Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore-570 006 <em>Manuscript received 28 May 1996, accepted 5 December 1996</em> Bromamine-B forms simple salts with silver nitrate and mercuric chloride in aqueous solutions, while thorium chloride, thorium nitrate and zirconium oxychloride react with BAB in aqueous solution to form dibromamine-B. The reactions have been explained by performing conductometric and pH-tilrations, thereby substantiating the formation of the free acid, <em>N</em>-bromobcnzenesulphonamide.

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8

Safiulina, Alfiya M., Alexey V. Lizunov, Aleksandr A. Semenov, et al. "Recovery of Uranium, Thorium, and Other Rare Metals from Eudialyte Concentrate by a Binary Extractant Based on 1,5-bis[2-(hydroxyethoxyphosphoryl)-4-ethylphenoxy]-3-oxapentane and Methyl Trioctylammonium Nitrate." Minerals 12, no. 11 (2022): 1469. http://dx.doi.org/10.3390/min12111469.

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Eudialyte-group minerals are of scientific interest as important concentrators of rare elements (mainly Zr and REE) in agpaitic alkaline rocks and a potential source of REE, Zr, Hf, Nb, and Ta for industrial use. Extraction of uranium(VI), thorium(IV), zirconium(IV), hafnium(IV), titanium(IV), and scandium(III) by a binary extractant based on 1,5-bis[2-(hydroxyethoxyphosphoryl)-4-ethylphenoxy]-3-oxapentane and methyl trioctylammonium nitrate from eudialyte breakdown solutions is studied. Extraction isotherms were obtained and exhaustive extraction was investigated. It is shown that uranium, th

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9

Stradling, G. N., J. C. Moody, S. A. Gray, M. Ellender, and A. Hodgson. "The Efficacy of DTPA Treatment after Deposition of Thorium Nitrate in the Rat Lung." Human & Experimental Toxicology 10, no. 1 (1991): 15–20. http://dx.doi.org/10.1177/096032719101000103.

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The efficacy of CaDTPA and ZnDTPA, the chelating agents of choice for several actinide elements, have been evaluated after the deposition of thorium in the rat lung in widely different amounts. The results showed that: 1 When the initial mass concentration of thorium simulated human exposure to four times the annual limits on intake for 232Th, the prompt (300 or 1000 μmol kg -1 body weight at 0.02 d) or repeated (30 or 300 μmol kg-1 body weight at 0.02, 0.25, 1,2,3 d) administration of CaDTPA were at best only moderately successful for enhancing the elimination of thorium. By 7 d after exposur

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10

Wangle, Tadeas, Vaclav Tyrpekl, Thierry Delloye, et al. "Homogeneous hydrolysis of thorium by thermal decomposition of urea." Radiochimica Acta 106, no. 8 (2018): 645–53. http://dx.doi.org/10.1515/ract-2017-2871.

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Abstract Thorium was precipitated homogeneously from a thorium nitrate solution by the thermal decomposition products of urea. The kinetics of the hydrolysis were studied at 90 and 100°C by pH measurement during the initial 5 h and the precipitation efficiencies of thorium and radium were measured over a 24 h period. Precipitation of the radium daughters was closely followed with the aim of co-precipitation of radium with thorium. The CO2 formed during urea decomposition dissolved in the solution, forming CO32− during the experiment upon reaching a sufficiently high pH level (>7). This allo

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11

Degtev, Mikhail I., and Aleksandra A. Yuminova. "DISTRIBUTION OF THORIUM (IV) IONS IN AQUEOUS EXFOLIATING SYSTEM CONTAINING ANTIPYRINE AND SULFOSALICYLIC ACID." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 64, no. 5 (2021): 19–23. http://dx.doi.org/10.6060/ivkkt.20216405.6332.

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The possibilities of an aqueous delaminating system containing antipyrine (AP) and sulfosalicylic acid (SSA) for extracting macro - and microamounts of thorium (IV) were studied. The proposed extraction system eliminates the use of toxic organic solvents. The dependences of the distribution of metal from nitrate solutions between phases on the concentration of reagents, acidity of the medium, the amount of inorganic salting-out agent (NaNO3, NH4NO3, Na2SO4) and the volume of the aqueous phase are determined, and optimal conditions for extraction are found. It is shown that in the organic phase

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12

Charpin, P., G. Chevrier, M. Lance, et al. "Structure du nitrate de thorium(IV) tétrahydraté." Acta Crystallographica Section C Crystal Structure Communications 43, no. 7 (1987): 1239–41. http://dx.doi.org/10.1107/s010827018709231x.

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13

Dash, S., M. Kamruddin, P. K. Ajikumar, et al. "Temperature programmed decomposition of thorium nitrate pentahydrate." Journal of Nuclear Materials 278, no. 2-3 (2000): 173–85. http://dx.doi.org/10.1016/s0022-3115(99)00261-5.

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14

de Queiroz, Juliana Cristina, Ana Cristina de Melo Ferreira, and Antonio Carlos Augusto da Costa. "The Growth ofMonoraphidiumsp. andScenedesmussp. Cells in the Presence of Thorium." Scientific World Journal 2012 (2012): 1–8. http://dx.doi.org/10.1100/2012/592721.

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Toxicity of thorium byMonoraphidiumsp. andScenedesmussp. was studied. Microalgal cultures were inoculated in ASM-1 medium in presence and absence of thorium. Its effect was monitored by direct counting on Fuchs-Rosenthal chamber and with software. The toxicity of thorium over the species was observed for concentrations over 50.0 mg/L. After 30 days,Monoraphidiumcells decreased their concentration from4.23×106to4.27×105and8.57×105 cells/mL, in the presence of 50.0 and 100.0 mg/L of thorium, respectively.Scenedesmussp. cells were more resistant to thorium: for an initial cell concentration of7.6

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15

Bukhzam, A., A. Benhmid, K. Edbey, S. Elsahli, G. A. H. Mekhemer, and M. I. Zaki. "decomposition of 2-propanol over Alumina supported Thoria and Potassium ion modified catalysts." Libyan Journal of Science &Technology 7, no. 1 (2022): 1–4. http://dx.doi.org/10.37376/ljst.v7i1.2302.

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A series of alumina and K ion modified supported thoria catalysts were prepared using thorium nitrate hexahydrate at different loading levels (3–20 wt% of thoria) by the impregnating method. The decomposition of 2-propanol on the surface of these catalysts was investigated. Pure g-alumina catalyst shows low activity and higher selectivity towards dehydration reaction. In contrast, thoria catalyst shows low activity and higher selectivity towards dehydrogenation reaction. The activity and selectivity of alumina supported thoria catalyst towards dehydrogenation reaction was increased with increa

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16

Skanthakumar, S., Geng Bang Jin, Jian Lin, Valérie Vallet, and L. Soderholm. "Linking Solution Structures and Energetics: Thorium Nitrate Complexes." Journal of Physical Chemistry B 121, no. 36 (2017): 8577–84. http://dx.doi.org/10.1021/acs.jpcb.7b06567.

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17

Silber, Herbert B. "Ultrasonic relaxation investigations of thorium nitrate in water." Journal of the Less Common Metals 126 (December 1986): 323–27. http://dx.doi.org/10.1016/0022-5088(86)90317-6.

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18

Pilkington, E. S., and A. W. Wylie. "Production of lanthanon and thorium compounds from monazite. III. Preparation of pure thorium nitrate." Journal of Applied Chemistry 4, no. 10 (2007): 568–80. http://dx.doi.org/10.1002/jctb.5010041008.

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19

Noufele, Christelle Njiki, Chien Thang Pham та Ulrich Abram. "Bis{µ-(2,2′-bipyridine-1κ2N,N′)-(6,6′-dicarbonyl-1κ2O,O′:2κO′)bis(N,N-diethylthioureato-2κS)}(acetato-1κO)(µ-acetato-1κO:2-κO′)(methanol-2κO)thoriumnickel". Molbank 2025, № 1 (2025): M1948. https://doi.org/10.3390/m1948.

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Reactions of 2,2′-bipyridine-6,6′-dicarbonyl-bis(N,N-diethylthiourea), H2Lbipy, with a mixture of thorium nitrate hydrate and nickel acetate hydrate in methanol with NEt3 as a supporting base yield brown single crystals of the bimetallic complex [ThNi(Lbipy)2(CH3COO)2(MeOH)]. Two 2,2′-bipyridine-centered bis(aroylthioureato) ligands connect the metal atoms in a way that the thorium atom is coordinated by two O,N,N,O donor atom sets, while the nickel atom establishes two S,O chelate rings in its equatorial coordination plane. The metal atoms are connected by a bridging acetato ligand, and their

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20

Woidy, Patrick, and Florian Kraus. "Crystal structure of Cs2[Th(NO3)6]." Acta Crystallographica Section E Structure Reports Online 70, no. 8 (2014): 98–100. http://dx.doi.org/10.1107/s1600536814015876.

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Dicaesium hexanitratothorate(IV), Cs2[Th(NO3)6], was synthesized in the form of colourless crystals by reaction of thorium nitrate and caesium nitrate in aqueous solution. The Th atom is located on an inversion centre and is coordinated by six chelating nitrate anions. The resulting ThO12coordination polyhedron is best described as a slightly distorted icosahedron. The Cs atom also has a coordination number of 12, but its coordination polyhedron is considerably more distorted. The crystal packing can be derived from an hexagonal dense packing (hcp) of idealized spherical CsO12and ThO12units. T

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21

Nair, G. M., and P. C. Kumar. "Determination of nitrate in thorium, uranium and plutonium solutions." Journal of Radioanalytical and Nuclear Chemistry Articles 109, no. 1 (1987): 223–28. http://dx.doi.org/10.1007/bf02117538.

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22

YAMAGISHI, Shigeru, and Yoshihisa TAKAHASHI. "Preparation of Acid Deficient Solutions of Uranyl Nitrate and Thorium Nitrate by Steam Denitration." Journal of Nuclear Science and Technology 33, no. 2 (1996): 147–51. http://dx.doi.org/10.1080/18811248.1996.9731877.

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23

JADON, A., and R. MATHUR. "Gametogenic Count and Histopathological Effect of Thorium Nitrate and Uranyl Nitrate on Mice Testes." Andrologia 15, no. 1 (2009): 40–43. http://dx.doi.org/10.1111/j.1439-0272.1983.tb00111.x.

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24

Cardone, Fabio, Gianni Albertini, Domenico Bassani, Giovanni Cherubini, Andrea Petrucci, and Alberto Rosada. "DST-deactivation of nickel-63 nitrate." Radiochimica Acta 107, no. 6 (2019): 469–77. http://dx.doi.org/10.1515/ract-2018-3009.

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Abstract Recent theoretical and experimental results, based on an extension of the Einstein theory of relativity, show that nuclear reactions of a new type can occur. In this framework, the feasibility of the deactivation of radionuclides is investigated. This paper reports the deactivation of nickel nitrate made of radioactive Nickel-63 in nitric acid by using ultrasounds. From the applicative point of view, it is a more realistic system then the previously considered thorium, not only because the molecule and the system are more complex but also because the problems related to the high corro

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25

Borisyuk, P. V., О. S. Vasilyev, А. V. Krasavin, et al. "Formation of local thorium silicate compound by electrochemical deposition from an acetone solution of thorium nitrate." Journal of Sol-Gel Science and Technology 81, no. 2 (2016): 313–20. http://dx.doi.org/10.1007/s10971-016-4267-x.

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26

Hussein, Gamal A. M., and Hamdy M. Ismail. "Texture assessment of thoria as a final decomposition product of hydrated thorium nitrate and oxycarbonate." Colloids and Surfaces A: Physicochemical and Engineering Aspects 99, no. 2-3 (1995): 129–39. http://dx.doi.org/10.1016/0927-7757(95)03089-v.

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27

Khokhlov, M. L., A. P. Yakushin, Yu S. Fedorov, et al. "Recovery of Protactinium from Irradiated Thorium Nitrate by Solvent Extraction." Radiochemistry 67, no. 2 (2025): 119–25. https://doi.org/10.1134/s106636222502002x.

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28

Bonfada, Élida, Ernesto Schulz-Lang, Renato André Zan, and Ulrich Abram. "Syntheses and Structures of Thorium(IV) Complexes with Bis(diphenylphosphino)ethane Dioxide, Ph2P(O)CH2CH2P(O)Ph2, and Bis(diphenylphosphoryl)amide, [Ph2P(O)NP(O)Ph2]." Zeitschrift für Naturforschung B 55, no. 3-4 (2000): 285–90. http://dx.doi.org/10.1515/znb-2000-3-410.

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Abstract The cationic thorium(IV) complexes [Th{Ph2P(O)CH2CH2P(O)Ph2}2(NO3)3]NO3 and [Th{Ph2P(O)NP(O)Ph2}3(dmso)2]NO3 have been synthesized by reactions of Th(NO3)4 · 5H2O with bis(diphenylphosphino)ethane dioxide, Ph2P(O)CH2CH2P(O)Ph2 (L1), or ammonium bis(diphenylphosphoryl)amide, (NH4)[Ph2P(O)NP(O)Ph2] (NH4L2), and subsequent recrystallization from dimethyl sulfoxide. The products have been studied spectroscopically and by X-ray crystallography. The thorium atom is ten-co-ordinate in the [Th(L1)2(NO3)3]+ cation with a coordination sphere which does not match one of the idealized polyhedra f

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29

Johansson, Georg, Mauro Magini, and Hitoshi Ohtaki. "Coordination around thorium(IV) in aqueous perchlorate, chloride and nitrate solutions." Journal of Solution Chemistry 20, no. 8 (1991): 775–92. http://dx.doi.org/10.1007/bf00675110.

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30

Benetollo, Franco, Gabriella Bombieri, Giuliana Tomat, Carla Bisi Castellani, Alberto Cassol, and Plinio Di Bernardo. "Oxydiacetato complexes of thorium(IV), the crystal structures of tetraaquo bis(oxydiacetato)thorium(IV) hexahydrate and di(sodium nitrate) disodium tris(oxydiacetato)thorium(IV)." Inorganica Chimica Acta 109, no. 1 (1985): 66. http://dx.doi.org/10.1016/s0020-1693(00)86329-x.

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31

Yelatontsev, Dmytro, and Anatoly Mukhachev. "Sorption extraction of rare-earth elements on sulfonic cation-exchange resin KU-2-8 from nitrate solutions of loparite concentrate development." Chemical Engineering 22, no. 7 (2021): 312–17. http://dx.doi.org/10.31044/1684-5811-2021-22-7-312-317.

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The experimental-industrial study results of the process of sorption of rare-earth elements on sulfonic cation-exchange resin KU-2-8 from nitrate solutions of loparite concentrate development are presented. Values of different obtained elements are discussed. Different changes in processes are described. Reprocessing loparine raw materials in the close cycle without hydrochloric and sulfuric acid, and excess of normative sodium content in productional concentrate is possible. Keywords: ionite, sorption, loparite concentrate, rare-earth element, thorium.

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32

Mukhachev, Anatoliy, Dmytro Yelatontsev, Volodymyr Shevchenko, Kateryna Bozhko, and Olena Kharуtonova. "Eco-friendly technology for “Nitrofos” fertilizer obtained from radioactive man-made waste." E3S Web of Conferences 526 (2024): 01013. http://dx.doi.org/10.1051/e3sconf/202452601013.

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The article presents the results of research into the process of purification of phosphoric acid from radioactive isotopes after extraction of uranium, thorium, and REE. It is shown that the main purification of acid is achieved in the process of gypsum precipitation with sulfuric acid and barium nitrate. Additional purification of nitrate-phosphate solution is achieved after uranium extraction and sorption-extraction purification of REE. The sorption raffinate with a concentration of P2O5 25 g/L, REE 0.5 g/L and NH4NO3 300 g/L were used for fertilizer production. Additional purification of NH

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33

Jha, R. K., P. N. Pathak, K. K. Gupta, et al. "Third-phase formation in the extraction of thorium nitrate byN,N-dihexyloctanamide." Desalination and Water Treatment 12, no. 1-3 (2009): 68–72. http://dx.doi.org/10.5004/dwt.2009.960.

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34

Brandel, Vladimir, and Michel Genet. "Solid transparent thorium-nitrate-phosphate jelly: A new material for luminescence studies." Journal of Luminescence 40-41 (February 1988): 863–64. http://dx.doi.org/10.1016/0022-2313(88)90472-3.

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35

Rao, P. R. Vasudeva, T. G. Srinivasan, and A. Suresh. "Third phase formation in the extraction of thorium nitrate by trialkyl phosphates." IOP Conference Series: Materials Science and Engineering 9 (March 1, 2010): 012056. http://dx.doi.org/10.1088/1757-899x/9/1/012056.

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36

Zilberman, B. Ya, Y. S. Fedorov, E. A. Borovikov, M. A. Afonin, and V. V. Korolev. "Extraction of uranium into a third phase of thorium nitrate—tributyl phosphate." Journal of Radioanalytical and Nuclear Chemistry Articles 150, no. 2 (1991): 363–67. http://dx.doi.org/10.1007/bf02035323.

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37

Mahmoud, Khaled H., and Karam Atef. "Optical and colorimetric studies of thorium nitrate-doped poly(vinyl alcohol) films." Polymer Composites 35, no. 9 (2013): 1786–91. http://dx.doi.org/10.1002/pc.22832.

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38

Bhide, M. K., R. M. Kadam, A. K. Tyagi, et al. "Unusual magnetic properties of Mn-doped ThO2 nanoparticles." Journal of Materials Research 23, no. 2 (2008): 463–72. http://dx.doi.org/10.1557/jmr.2008.0064.

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We report the synthesis of Th1–xMnxO2 (x = 0, 0.001, 0.002, 0.004, and 0.01 wt%) nanoparticles by the urea combustion method using thorium nitrate gel followed by heat treatment at a higher temperature (T). The obtained Th1–xMnxO2 nanocrystals were characterized by x-ray diffraction (XRD), direct-current magnetization (M) measurements and electron paramagnetic resonance (EPR). XRD analysis revealed that Th1–xMnxO2 crystallizes in the cubic structure (Fm3m). M measurements showed ferromagnetic ordering at room temperature for Th0.99Mn0.01O2 samples annealed at 775 K. An intense and broad ferrom

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39

Čomor, Jožef J., Miroslav M. Kopečni, and Djordje M. Petković. "SOLVENT EXTRACTION OF THORIUM NITRATE WITH TRI-n-BUTYL PHOSPHATE. A CHEMICAL MODEL." Solvent Extraction and Ion Exchange 15, no. 1 (1997): 33–48. http://dx.doi.org/10.1080/07366299708934464.

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40

Srinivasan, T. G., S. Vijayasaradhi, R. Dhamodaran, A. Suresh, and P. R. Vasudeva Rao. "THIRD PHASE FORMATION IN EXTRACTION OF THORIUM NITRATE BY MIXTURES OF TRIALKYL PHOSPHATES." Solvent Extraction and Ion Exchange 16, no. 4 (1998): 1001–11. http://dx.doi.org/10.1080/07366299808934565.

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41

Syarip, E. Togatorop, and Yassar. "Molybdenum-99 production calculation analysis of SAMOP reactor based on thorium nitrate fuel." Journal of Physics: Conference Series 978 (March 2018): 012072. http://dx.doi.org/10.1088/1742-6596/978/1/012072.

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42

Lemire, Robert J., and Allan B. Campbell. "Solubility of trialkyl phosphate adducts of thorium nitrate in trialkyl phosphate-alkane mixtures." Journal of Chemical & Engineering Data 32, no. 1 (1987): 56–60. http://dx.doi.org/10.1021/je00047a017.

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43

Bino, Avi, та Ruthie Chayat. "A new hydroxo-bridged thorium(IV) dimer: Preparation and structure of di-μ-hydroxo-bis[aquanitrato(2,6-diacetylpyridinedisemicarbazone)thorium(IV)] nitrate tetrahydrate". Inorganica Chimica Acta 129, № 2 (1987): 273–76. http://dx.doi.org/10.1016/s0020-1693(00)86674-8.

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44

Horng, Jiin-Shiung, Wen-Shou Chuang, and Ying-Chu Hoh. "A Semiempirical Equation for Estimating Thorium Nitrate Extraction by DHPSO from Nitric Acid Solution." Nuclear Technology 77, no. 3 (1987): 299–302. http://dx.doi.org/10.13182/nt87-a33969.

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45

Belova, V. V., N. S. Egorova, A. A. Voshkin, and A. I. Khol’kin. "Extraction of rare earth metals, uranium, and thorium from nitrate solutions by binary extractants." Theoretical Foundations of Chemical Engineering 49, no. 4 (2015): 545–49. http://dx.doi.org/10.1134/s0040579515040041.

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46

Di Bernardo, Plinio, Pierluigi Zanonato, Linfeng Rao, Arturo Bismondo, and Francesco Endrizzi. "Interaction of thorium(iv) with nitrate in aqueous solution: medium effect or weak complexation?" Dalton Transactions 40, no. 36 (2011): 9101. http://dx.doi.org/10.1039/c1dt10325c.

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Yassar, F., A. W. Harto, and Syarip. "Neutronic analysis of subcritical assembly for 99Mo isotope production based on thorium nitrate fuel." Journal of Physics: Conference Series 1080 (August 2018): 012021. http://dx.doi.org/10.1088/1742-6596/1080/1/012021.

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Moody, J. C., and G. N. Stradling. "Biokinetics of thorium and daughter radionuclides after deposition as nitrate in the rat lung." Journal of Aerosol Science 23 (January 1992): 523–26. http://dx.doi.org/10.1016/0021-8502(92)90464-7.

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Lu, Youcai, Yanfeng Bi, Yan Bai, and Wuping Liao. "Extraction and separation of thorium and rare earths from nitrate medium withp-phosphorylated calixarene." Journal of Chemical Technology & Biotechnology 88, no. 10 (2013): 1836–40. http://dx.doi.org/10.1002/jctb.4035.

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Prassanti, Riesna, Budi Yuli Ani, Sumiarti Sumiarti, and Erlan Dewita. "Pengendapan Torium (Th) dari Monasit Bangka Setelah Proses Solvent Impregnated Resin (SIR)." EKSPLORIUM 40, no. 2 (2019): 127. http://dx.doi.org/10.17146/eksplorium.2019.40.2.5648.

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Abstract:

ABSTRAKPengolahan monasit Bangka secara basa dilakukan melalui tahapan dekomposisi; pelarutan parsial pH 3,7; pengendapan parsial pH 6,3; dan pengendapan total pH 9,8. Proses tersebut menghasilkan natrium fosfat, Rare Earth (RE) hidroksida, uranium (U), dan torium (Th). Pada proses dekomposisi, 99 % natrium fosfat telah terambil dan RE hidroksida telah terpisah dari U dan Th dengan recovery 85 %. Sementara itu, U dan Th yang dihasilkan masih bercampur sehingga perlu dipisahkan. Pemurnian Th dari U pada monasit telah dilakukan dengan metode Solvent Impregnated Resin (SIR) dan dilanjutkan dengan

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