Description
Nickel sulfate hexahydrate appears as blue or emerald-green crystalline material. Toxic and carcinogenic. Two known phases. Alpha-form (blue tetragonal) converts to beta-form (green monoclinic) at 127.9°F. Becomes blue and opaque at room temperature. Odorless. Sweet astringent taste. Somewhat efflorescent. Greenish-yellow anhydrous salt is formed at 536°F. (NTP, 1992)
Synonyms
Nickel(2+);sulfate;hexahydrate
IUPAC Name
nickel(2+);sulfate;hexahydrate
Molecular Weight
262.84
Molecular Formula
H4NiO5S
InChI
InChI=1S/Ni.H2O4S.6H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);6*1H2/q+2;/p-2
InChI Key
RRIWRJBSCGCBID-UHFFFAOYSA-L
Boiling Point
Decomposes at 1544° F (NTP, 1992)
Melting Point
1453 °C
Purity
99%
Density
2.07 (NTP, 1992)
Solubility
greater than or equal to 100 mg/mL at 68° F (NTP, 1992)
Storage
Flammables area
Complexity
62.2
Covalently-Bonded Unit Count
8
Defined Atom Stereocenter Count
0
EC Number
600-152-3
Exact Mass
261.950459
Formal Charge
0
H-Bond Acceptor
10
H-Bond Donor
6
Heavy Atom Count
12
MeSH Entry Terms
nickel sulfate;nickel sulfate heptahydrate;nickel sulfate hexahydrate;nickel sulfate hexahydrate-(2)H-labeled cpd;nickel sulfate hydrate;nickel sulfate monohydrate
Monoisotopic Mass
261.950459
Rotatable Bond Count
0
RTECS Number
QR9600000
Topological Polar Surface Area
94.6 Ų
UNII
JC9WZ4FK68
UN Number
3077;3077
Vapor Pressure
0 mm Hg at 68 °F Essentially (NTP, 1992)
