Potassium Magnesium Sulfate

Formula: K₂Mg(SO₄)₂·6H₂O

Properties

Crystal system: monoclinic

Stability on air: stable. No signs of dehydration after months.

Preparation

Dissolve equimolar amounts of potassium sulfate K₂SO₄ (a common fertilizer) and magnesium sulfate MnSO₄·7H₂O in water, then crystallize.

Growing

Safety

The compound is not toxic in reasonable amounts.

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