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Alum
1. Any of a group of double sulphates of trivalent metals such as aluminum, chromium, or iron and a univalent metal such as potassium or sodium. 2. See aluminium sulfate; ammonium aluminium sulfate; potassium aluminium sulfate.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Chemistry
- Category: Inorganic chemistry
- Company: McGraw-Hill
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