Nickel(II) sulfate hexahydrate

Catalog Number	ACM10101970-1
CAS	10101-97-0
Structure
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
Canonical SMILES	O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Ni+2]
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)
Application	Source of nickel in standards.
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
Heavy Atom Count	12
Hydrogen Bond Acceptor Count	10
Hydrogen Bond Donor Count	6
Monoisotopic Mass	261.950459
Rotatable Bond Count	0
Topological Polar Surface Area	94.6 Ų