Sodium Iodide
Title: Sodium Iodide
CAS Registry Number: 7681-82-5
Trademarks: Ioduril; Anayodin
Molecular Formula: INa
Molecular Weight: 149.89
Percent Composition: I 84.67%, Na 15.34%
Line Formula: NaI
Literature References: U.S.P. NaI is at least 99% pure.
Properties: White, odorless, deliquesc crystals or granules. Gradually absorbs up to about 5% (½ mol) moisture on exposure to air. Slowly becomes brown in the air due to liberation of iodine. Its aq soln is similarly affected. d 3.67. mp 651°. One gram dissolves in 0.5 ml water, ~2 ml alc, 1 ml glycerol; sol in acetone. It is made slightly alkaline to render it more stable. pH: 8-9.5. Keep well closed and protected from light. At ordinary room temp crystallizes from water with 2H2O in the form of colorless, prismatic crystals. Incompat. As of potassium iodide. MLD i.v. in rats: 1.3 g/kg, Loeser, Konwiser, J. Lab. Clin. Med. 15, 35 (1929).
Melting point: mp 651°
Density: d 3.67
Toxicity data: MLD i.v. in rats: 1.3 g/kg, Loeser, Konwiser, J. Lab. Clin. Med. 15, 35 (1929)
Therap-Cat: Iodine supplement; expectorant.
Therap-Cat-Vet: Actinobacillosis, actinomycosis. Expectorant. Has been used for ringworm, hyperplastic fibrous lesions, paraplegia from pachymeningitis of dogs.
Keywords: Expectorant; Replenishers/Supplements; Iodine.

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