Synonyms
UNII-4FLT4T3WUN; Nickelous sulfate hexahydrate; TC-165716; Sulphuric acid, nickel(II) salt; Epitope ID:119679; I14-39308; Nickel(II) sulfate, anhydrous, 99.99% trace metals basis; Nickel(2+) sulfate; AKOS015910995; Sulfuric acid, nickel(2+) salt, hexahydrate;
IUPAC Name
nickel(2+);sulfate;
Molecular Weight
154.749g/mol
Molecular Formula
NiSO4;NiSO4;NiO4S;
InChI
InChI=1S/Ni.H₂O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2;
InChI Key
LGQLOGILCSXPEA-UHFFFAOYSA-L;
Melting Point
1558 ° F (decomposes) (NTP, 1992);Decomposes @ 840 deg C;No melting point; decomposes at 848 °C;
Density
3.68 at 68 ° F (USCG, 1999);4.01 g/cu cm;3.7 g/cm³;
Solubility
27.3 to 27.7 % weight % at 68° F (NTP, 1992);29.3 G/100 CC WATER @ 0 DEG C;83.7 G/100 CC WATER @ 100 DEG C;INSOL IN ALCOHOL, ETHER, ACETONE;0.11% WT IN METHANOL @ 35 DEG C;0.02% WT IN ETHANOL @ 35 DEG C;38.990 lb/100 lb water at 70 deg F;Solubility in water, g/100ml at 20 °C: 29.3 (freely soluble);
Color Form
Green-yellow crystals;Pale green;
Complexity
62.2
Covalently-Bonded Unit Count
2
Decomposition
When heated to decomp it emits very toxic fumes of /sulfur oxides/.;Toxic gases and vapors (such as nickel carbonyl) may be released ... in the decomp of nickel cmpd. /Nickel & sol nickel cmpd/;848 °C. This produces toxic fumes of sulfur trioxide and nickel monoxide. See ICSC 0926. See ICSC 1202. Reacts with oxidants. This generates fire and explosion hazard. The solution in water is a weak acid.;
EC Number
232-104-9
Exact Mass
153.887g/mol
H-Bond Acceptor
4
Heavy Atom Count
6
ICSC Number
0063
Monoisotopic Mass
153.887g/mol
Odor
Odorless;
Other Experimental
Somewhat efflorescent; loses 5 H20 @ about 100 deg C /Hexahydrate/;Aqueous soln is acid; pH about 4.5 /Hexahydrate/;alpha-Form blue to blue-green tetragonal crystals; beta-form green transparent crystals; becomes blue and opaque at room temp; greenish-yellow anhydrous salt formed @ 280 deg C /Hexahydrate/;Sweet astringent taste /Hexahydrate/;VERY SOL IN AMMONIUM HYDROXIDE /HEXAHYDRATE/;Green rhombic; Index of refraction: 1.467, 1.489, 1.492; density: 1.948; MP: 99 deg C (loses H₂O); BP: 103 deg C (loses 6 H20); Solubility in water: 75.6 g/100 cc at 15.5 deg C, 475.8 g/100 cc at 100 deg C; sol in alc /Hepatahydrate/;Blue, tetragonal (alpha form); green monoclinic (beta form); Index of refraction: 1.581, 1.487; density: 2.07; MP: 53.3 deg C (transition pt); BP: 103 deg C (loses 6 H20); Solubility in water: 65.52 g/100 cc at 0 deg C, 340.7 g/100 cc at 100 deg C; solubility in methanol: 12.5 g/100 cc; very sol in alc, ammonium hydroxide /Hexahydrate/;Density: 2.03 g/cu cm /Hexahydrate/;
RTECS Number
QR9350000
Stability
STABLE @ 40 DEG C /HEXAHYDRATE/;
Topological Polar Surface Area
88.6A^2
UNII
4FLT4T3WUN
UN Number
3077
