Einfach
einen Begriff in der Tabelle rechts anklicken um weitere Übersetzungen in dieser Sidebar zu erhalten.
Alum ?ælum is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated potassium aluminium sulfate with the formula KAl(SO
4)2·12H
2O. More widely, alums are double sulfate salts, with the general formula AM(SO
4)
2·12H
2O, where A is a monovalent cation such as potassium or ammonium and M is a trivalent metal ion such as aluminum or chromium. When the trivalent ion is aluminium, the alum is named after the monovalent ion.