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Appearance And Properties:green crystal, orthorhombic system.
PH Value：4.5
Relative Density：2.031、1.98（7水物）、melting point 31.5℃
Relative Density (Water =1)：2.07
Boiling Point (℃)：840（Anhydrous）
Molecular Formula：NiSO4 · 6H20
Molecular Weight：262.86
Main Ingredients：Pure
Solubility：Easily soluble in water, slightly soluble in ethanol and methanol, its aqueous solution is acidic, slightly soluble in acid, ammonia