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CAS 7784-24-9

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Aluminum potassium sulfate dodecahydrate

Description:
Aluminum potassium sulfate dodecahydrate, commonly known as potash alum, is a chemical compound with the formula KAl(SO₄)₂·12H₂O. It is a colorless, crystalline solid that is highly soluble in water, forming a clear solution. This compound is characterized by its astringent properties and is often used in various applications, including water purification, food processing, and as a mordant in dyeing. The dodecahydrate form indicates that it contains twelve molecules of water for each formula unit, contributing to its stability and solubility. Potash alum has a relatively low toxicity and is generally regarded as safe for use in food and pharmaceuticals. In addition to its industrial applications, it is also utilized in traditional medicine and cosmetics. The compound crystallizes in the orthorhombic system and exhibits a characteristic octahedral shape. Its properties, such as pH and conductivity, can vary depending on concentration and temperature, making it a versatile substance in both laboratory and industrial settings.
Formula:Al·2H2O4S·12H2O·K
InChI:InChI=1S/Al.K.H2O4S.6H2O/c;;1-5(2,3)4;;;;;;/h;;(H2,1,2,3,4);6*1H2
InChI key:InChIKey=AUROSHMKZHJZLF-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)O.[Al].[K].O
Synonyms:
  • Aluminium potassium sulfate dedecahydrate
  • Aluminium potassium sulfate dodecahydrate
  • Aluminum Potassium Sulfate Dodecahydrate
  • Aluminum Potassium Sulfate Hydrate (1:1:2:12)
  • Aluminum potassium sulfate (AlK(SO<sub>4</sub>)<sub>2</sub>), dodecahydrate
  • Potassium alum dodecahydrate
  • Potassium aluminum disulfate dodecahydrate
  • Potassium aluminum sulfate dodecahydrate
  • Potassium aluminum sulfate dodecahydrate (KAl(SO<sub>4</sub>)<sub>2</sub>.12H<sub>2</sub>O)
  • Sulfuric acid, aluminum potassium salt (2:1:1), dodecahydrate
  • See more synonyms
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