what are the common name of the ff. potassium aluminum sulfate and it’s formula??

Synonyms: Alum; Aluminum potassium sulfate, dodecahydrate; Kalinite; Potassium alum; Sulfuric acid, aluminum potassium saltSynonyms: Sulfuric acid, aluminum salt (3:2), octadeca hydrate; Cake alum; Patent alum CAS No.: 10043-01-3 (Anhydrous) 7784-31-8 (Octadecahydrate) Molecular Weight: 666.44 Chemical Formula: Al2(SO4)3.18H2O Product Codes: J.T. Baker: 0564 Mallinckrodt Try this website:http://mineral.galleries.com/minerals/sulfates/alunite/alunite.htm

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Its popularly know as ALUMyou can find the chemical formula on google- just input the search saying “chemical formula for .”