Sodium Selenite
Title: Sodium Selenite
CAS Registry Number: 10102-18-8
CAS Name: Selenious acid disodium salt
Trademarks: Selenase (Biosyn)
Molecular Formula: Na2O3Se
Molecular Weight: 172.94
Percent Composition: Na 26.59%, O 27.75%, Se 45.66%
Line Formula: Na2SeO3
Literature References: Prepd by evaporating an aqueous solution of sodium hydroxide and selenious acid between 60° and 100°: Krak, J. Am. Ceram. Soc. 12, 530 (1929); by heating a mixture of sodium chloride and selenium oxide: Cameron, Macallan, Proc. Roy. Soc. 46, 13 (1890). Metabolism: M. Sandholm, Acta Pharmacol. Toxicol. 33, 6 (1973); H. W. Symonds et al., Br. J. Nutr. 45, 117 (1981). Mutagenicity study: M. Nodo et al., Mutat. Res. 66, 175 (1979). Toxicity study: Cummins, Kimura, Toxicol. Appl. Pharmacol. 20, 89 (1971). Clinical effect of selenium supplementation on immune cell function: M. Roy et al., Biol. Trace Elem. Res. 46, 115 (1994); L. Kiremidjian-Schumacher et al., ibid. 183. Clinical evaluation as immunostimulant in head and neck cancer: eidem, ibid. 73, 97 (2000); in treatment of radiation-associated secondary lymphedema: O. Micke et al., Int. J. Radiat. Oncol. Biol. Phys. 56, 40 (2003).
Properties: Tetragonal prisms. Stable in air. Freely sol in water. Insol in alcohol. LD50 orally in rats: 7 mg/kg (Cummins, Kimura).
Toxicity data: LD50 orally in rats: 7 mg/kg (Cummins, Kimura)
Use: Removing green color from glass during its manuf; alkaloidal reagent.
Therap-Cat: Selenium supplement.
Therap-Cat-Vet: Selenium supplement for livestock.
Keywords: Replenishers/Supplements; Selenium.

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