- Types:
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alum, potash alum, potassium alum
a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
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alum, ammonia alum, ammonium alum
a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
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Rochelle salt, Rochelle salts, potassium sodium tartrate
a double salt used in Seidlitz powder; acts as a cathartic
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Paris green
a toxic double salt of copper arsenate and copper acetate