Nickel Sulfate for water content, six water content and seven water content three. Goods for more than six water content, type of alpha and beta type two variants, the former is blue square crystallization, the latter for the green monoclinic crystal. Heating to 103 ° C losing six water of crystallization. Soluble in water, water solution is acid; Soluble in alcohol and ammonia water. Poisonous! .
Appearance and properties: green crystal, tetragonal system.
PH: 4.5
Relative density: 2.031, 1.98 (7 water content)
Melting point 31.5 ℃.
Relative density (water = 1) : 2.07
Boiling point (℃) : 840 (no water)
Molecular formula: NiSO4.6 H2O
Molecular weight: 262.86
Solubility: soluble in water, slightly soluble in ethanol and methanol, its aqueous solution is acidic, slightly soluble in acid, ammonia water.
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