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Nickel(II) sulfate
Chemical compound / From Wikipedia, the free encyclopedia
Nickel(II) sulfate, or just nickel sulfate, usually refers to the inorganic compound with the formula NiSO4(H2O)6. This highly soluble blue green coloured salt is a common source of the Ni2+ ion for electroplating. Approximately 40,000 tonnes were produced in 2005.[1]
Quick Facts Names, Identifiers ...
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Names | |||
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IUPAC name
Nickel(II) sulfate | |||
Other names
Nickelous sulfate Nickel (II) sulphate | |||
Identifiers | |||
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3D model (JSmol) |
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ChEBI | |||
ChemSpider |
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ECHA InfoCard | 100.029.186 ![]() | ||
EC Number |
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PubChem CID |
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RTECS number |
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UNII |
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CompTox Dashboard (EPA) |
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Properties | |||
NiSO4 | |||
Molar mass | 154.75 g/mol (anhydrous) 262.85 g/mol (hexahydrate) 280.86 g/mol (heptahydrate) | ||
Appearance | yellow solid (anhydrous) blue crystals (hexahydrate) green-blue crystals (heptahydrate) | ||
Odor | odorless | ||
Density | 4.01 g/cm3 (anhydrous) 2.07 g/cm3 (hexahydrate) 1.948 g/cm3 (heptahydrate) | ||
Melting point | 1210 °C (anhydrous, at high pressure) 53 °C (hexahydrate) | ||
Boiling point | > 640 °C (anhydrous, decomposes) 100 °C (hexahydrate, decomposes) | ||
65 g/100 mL (20 °C) 77.5 g/100 mL (30 °C) (heptahydrate) | |||
Solubility | anhydrous insoluble in ethanol, ether, acetone hexahydrate insoluble in ethanol, ammonia heptahydrate soluble in alcohol | ||
Acidity (pKa) | 4.5 (hexahydrate) | ||
+4005.0·10−6 cm3/mol | |||
Refractive index (nD) |
1.511 (hexahydrate) 1.467 (heptahydrate) | ||
Structure | |||
orthorombic (anhydrous) tetragonal (hexahydrate) rhombohedral (heptahydrate) | |||
Hazards | |||
GHS labelling: | |||
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Danger | |||
H302+H332, H315, H317, H334, H341, H350, H360D, H372, H410 | |||
P201, P261, P273, P280, P308+P313, P501 | |||
NFPA 704 (fire diamond) | |||
Flash point | Non-flammable | ||
Lethal dose or concentration (LD, LC): | |||
LD50 (median dose) |
264 mg/kg | ||
Safety data sheet (SDS) | External MSDS | ||
Related compounds | |||
Other cations |
Cobalt(II) sulfate Copper(II) sulfate Iron(II) sulfate | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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