kids encyclopedia robot

Alum facts for kids

Kids Encyclopedia Facts
Chromium potassium sulfate dodecahydrate
Chrome alum, chromium potassium sulfate

Alum is both a specific chemical compound and a class of chemical compounds.

  1. It means potassium aluminium sulfate, a chemical compound.
  2. It also means a double sulfate salt.



Words like "alum" and "potash" were used before modern chemistry developed. The word 'alumen' occurs in Pliny's Natural History (23–79 AD). In the 52nd chapter of his 35th book, he gives a detailed description. Different substances were distinguished by the name of 'alumen', but they were all astringents, and were all used in dyeing and medicine.

Images for kids

See also

Kids robot.svg In Spanish: Alumbre para niños

Black History Month on Kiddle
Famous African-American Inventors:
Shirley Ann Jackson
Garett Morgan
J. Ernest Wilkins Jr.
Elijah McCoy
kids search engine
Alum Facts for Kids. Kiddle Encyclopedia.