Alum powderpotassium aluminum sulfate dodecahydrate used in baking powder,water purification, leather tanning, dyeing, and fireproof textiles.

Alum powderpotassium aluminum sulfate dodecahydrate used in baking powder,water purification, leather tanning, dyeing, and  fireproof textiles. - 94934420

Close up of a rock salt in a spoon on wooden surface.

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