potash alum
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potash alum — noun a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum • Syn: ↑alum, ↑potassium alum • Hypernyms: ↑aluminum, ↑aluminium, ↑Al, ↑atomic number 13, ↑double salt … Useful english dictionary
potash alum — noun alum, hydrated potassium aluminium sulphate, formula KSO.Al(SO).24HO … Wiktionary
potash alum — Chem. alum1 (def. 1). [1830 40] * * * … Universalium
alum — alum1 [al′əm] n. [ME & OFr < L alumen, alum: for IE base see ALE] 1. a double sulfate of a monovalent metal or radical (as sodium, potassium, or ammonium) with a trivalent metal (as aluminum, iron, or chromium): it is used as an astringent, as … English World dictionary
Alum — This article is about the chemical compound. For other uses, see Alum (disambiguation). Bulk alum Alum ( / … Wikipedia
alum — alum1 /al euhm/, n. Chem. 1. Also called potash alum, potassium alum. a crystalline solid, aluminum potassium sulfate, K2SO4·Al2(SO4)3·24H2O, used in medicine as an astringent and styptic, in dyeing and tanning, and in many technical processes. 2 … Universalium
alum — noun a) the double sulphate of potassium and aluminium with chemical formula KSO.Al(SO).24HO. b) Any similar double sulphate in which either or both of the potassium and aluminium is wholly or partly replaced by other univalent or tervalent… … Wiktionary
alum — [ aləm] noun Chemistry 1》 (also potash alum) a colourless astringent compound which is a hydrated double sulphate of aluminium and potassium, used in solution in dyeing and tanning. 2》 any of a series of analogous compounds of other metals.… … English new terms dictionary
Alum stone — Al um stone (Min.) A subsulphate of alumina and potash; alunite. [1913 Webster] … The Collaborative International Dictionary of English
potash — alūnas statusas T sritis chemija formulė KAl(SO₄)₂·12H₂O atitikmenys: angl. alum; common alum; kalinite; potash rus. квасцы … Chemijos terminų aiškinamasis žodynas
