Nickel Ammonium Sulfate. NiSO₄ (NH₄)₂ SO₄ • 6H₂O; mol. wt. 395.00. Anhydrous salt 72.63%, H₂O 27.37%, NiSO₄ 39.18% = 66.55% hydrated sulfate, (NH₄)₂ SO₄ 33.450%, Ni 14.86%, NH₃ 8.62%, SO₄ 48.64%.

Bluish-green crystals; somewhat efflorescent. d. 1.923. Soluble in 10.3 parts water, 5 parts water at 60°; insoluble in alcohol.

Use: Electroplating metals.

Grades available: Reagent, technical.