Nickel sulfate hexahydrate

About This Item

Molecular Formula	H₁₂NiO₁₀S
CAS Number	10101-97-0
Appearance	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)

FC-0161173

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Properties

Chemical Identifiers

IUPAC Name	nickel(2+);sulfate;hexahydrate
SMILES	O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Ni+2]
InChI Key	RRIWRJBSCGCBID-UHFFFAOYSA-L
InChI	InChI=1S/Ni.H2O4S.6H2O/c;1-5(2,3)4;;;;;;/h;(H2,1,2,3,4);6*1H2/q+2;;;;;;;/p-2

Physical Properties

Boiling Point	Decomposes at 1544 °F (NTP, 1992)
Melting Point	127.9 °F (transition point) (NTP, 1992)
Density	2.07 (NTP, 1992) - Denser than water; will sink

Safety Information

Hazard Class

Danger

Please refer to the Safety Data Sheet (SDS) for complete handling, storage, and disposal instructions. Follow all applicable regulations when working with this chemical reagent.