Hydrous NaAlSO4, KAlSO4, and NH4AlSO4 [4 is subscript] {alum} are aluminum sulfates with sodium, potassium, and ammonia. Alum treats canker sores and is for water purification. Aluminum potassium sulfate is AlK(SO4)2 [4 and 2 are subscripts].
Physical Sciences>Earth Science>Mineral>Kinds>Sulfates
5-Earth Science-Mineral-Kinds-Sulfates
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Date Modified: 2022.0224