A white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum.
1The presence of sulphuric acid in potash alum was known to the alchemists.
2Potash alum is the common alum of commerce, although both soda alum and ammonium alum are manufactured.
3Potash alum is obtained tolerably pure in commerce in colorless transparent crystalline masses, having an acid, sweetish, astringent taste.
4Potash alum, K2SO4.Al2(SO4)3.24H2O, crystallizes in regular
Translations for potash alum