AMMONIUM ALUM

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum

Synonyms:

alum; ammonia alum; ammonium alum

Classified under:

Nouns denoting substances

Hypernyms ("ammonium alum" is a kind of...):

Al; aluminium; aluminum; atomic number 13 (a silvery ductile metallic element found primarily in bauxite)

double salt (a solution of two simple salts that forms a single substance on crystallization)

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