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NALT Concept Space
U.S. Department of Agriculture

NALT Full

Concept information

  1. Research, Technology, Methods
  2. chemical compounds
  3. inorganic compounds
  4. inorganic salts
  5. sulfates
  6. alum
  1. Research, Technology, Methods
  2. acids, bases, and salts
  3. salts
  4. inorganic salts
  5. sulfates
  6. alum

Preferred term

alum

Type

  • Chemical

Definition

  • Information A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization. Common alum is the double sulphate of aluminium and potassium. It is white, transparent, very astringent, and crystallizes easily in octahedrons. The term is extended so as to include other double sulphates similar to alum in formula.

    Source: NAL Thesaurus Staff

    Type: Concept definition

Broader concept

In other languages

URI

https://lod.nal.usda.gov/nalt/7263

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RDF/XML TURTLE JSON-LD Created 1/19/06, last modified 9/1/15