Title: Nickel Sulfate
CAS Registry Number: 7786-81-4
CAS Name: Sulfuric acid nickel(2+) salt (1:1)
Molecular Formula: NiO4S
Molecular Weight: 154.76
Percent Composition: Ni 37.93%, O 41.35%, S 20.72%
Line Formula: NiSO4
Literature References: Soly study: F. C. Vilbrandt, J. A. Bender, Ind. Eng. Chem. 15, 967 (1923). Specific gravity, viscosity, and soly of aqueous solns of a-hexahydrate: V. R. Phillips, J. Chem. Eng. Data 17, 357 (1972). Thermal dehydration study of a-hexahydrate: N. Koga, H. Tanaka, J. Phys. Chem. 98, 10521 (1994). Acute toxicity data: E. L. Reagan, J. Am. Coll. Toxicol. 1, 685 (1992). Evaluation of carcinogenic risk: IARC Monographs 49, 257-445 (1990); Toxicology and Carcinogenesis Studies (NTP TR-454, NIH 96-3370, 1996) 379 pp. Use in patch testing for nickel allergies: V. Simonetti et al., Contact Dermatitis 39, 187 (1998). Review of toxicology and human exposure: Toxicological Profile for Nickel (PB2006-100005, 2005) 397 pp.
Properties: Pale green to yellow crystals; dec at 848°. Soly at 20° (g/l): water 293. Insol in ethanol, diethyl ether.
Derivative Type: Hexahydrate
CAS Registry Number: 10101-97-0
Properties: Two known phases. a-Form, blue to blue-green tetragonal crystals; transition to b-form at 53.3°. b-Form, green transparent crystals. a-Form is more stable; commercially available. d 2.07. Soly in water of a-form (g anhydrous salt/100 g water) at 50.00°: 52.267; of b-form at 60.11°: 55.557. Sol in ethanol. pH of 5% soln at 25°: 3.8. LD50 in male, female rats (mg/kg): 335, 264 orally (Reagan).
Density: d 2.07
Toxicity data: LD50 in male, female rats (mg/kg): 335, 264 orally (Reagan)
Derivative Type: Heptahydrate
CAS Registry Number: 10101-98-1
Properties: Green, orthorhombic crystals; efflorescent. Soly in water (g anhydrous salt/100 g water) at 0.00°: 26.189; at 25.00°: 40.469. Sol in ethanol.
CAUTION: Nickel compounds are listed as known human carcinogens: Report on Carcinogens, Eleventh Edition (PB2005-104914, 2004) p III-181.
Use: In electrolytic and electroless nickel-plating; as mordant in dyeing; in catalyst mfr; in prepn of other nickel compds.
Therap-Cat: Diagnostic aid (contact allergen).
Keywords: Diagnostic Aid. |