Title: Ammonium Vanadate(V)
CAS Registry Number: 7803-55-6
Additional Names: Ammonium metavanadate
Molecular Formula: H4NO3V
Molecular Weight: 116.98
Percent Composition: H 3.45%, N 11.97%, O 41.03%, V 43.55%
Line Formula: NH4VO3
Literature References: Prepn: Baker et al., Inorg. Synth. 3, 117 (1950). Toxicity study: H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969).
Properties: White or slightly yellow, crystalline powder. Sol in 165 parts water; more sol in hot water, in dil ammonia. Loses water and ammonia on heating. LD50 orally in rats: 0.16 g/kg (Smyth).
Toxicity data: LD50 orally in rats: 0.16 g/kg (Smyth)
Use: In dyeing and printing on woolens; staining wood black; manuf vanadium black and "indelible ink"; producing vanadium luster on pottery; as photographic developer; in hematoxylin staining in microscopy; as reagent in analytical chemistry.