alum
family of double sulfate salts of monovalent and trivalent cations
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Summary
alum is a structural class of chemical entities[1]. alum ranks in the top 1% of structural class of chemical entities entities by monthly Wikipedia readership (8,412 views/month).[2]
Key Facts
- Subclass of: chemical substance[3], material[4], double salt[5], sulfate salt[6]
- Commons category: Alum[7]
- Has part(s): sulfate ion[8], trication[9], monocation[10], water of crystallization[11]
- Crystal habit: octahedron[12]
- Topic's main category: Category:Alum[13]
- Described by source: Pauly–Wissowa[14], Gujin Tushu Jicheng[15], Meyers Konversations-Lexikon, 4th edition (1885–1890)[16], Encyclopædia Britannica 11th edition[17], The Domestic Encyclopædia; Or, A Dictionary Of Facts, And Useful Knowledge[18], The New Student's Reference Work[19], Armenian Soviet Encyclopedia, vol. 9[20]
- Different from: potassium aluminium sulfate[21], aluminium sulfate[22], alunite[23]
- On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[24]
Body
Works and Contributions
Things named for alum include aluminium[25], a chemical element[26]; alunite[27], a mineral species[28]; alum-(K)[29], a mineral species[30]; and alunogen[31], a mineral species[32].
Why It Matters
alum has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[33] alum is known by 68 alternative names across languages and contexts.[34]
Entities named for alum include aluminium[25], a chemical element[26]; alunite[27], a mineral species[28]; alum-(K)[29], a mineral species[30]; and alunogen[31], a mineral species[32].