Aluminium potassium sulfate dodecahydrate

Base Information

• Chemical Name: Aluminium potassium sulfate dodecahydrate
• CAS No.: 7784-24-9
• Molecular Formula: AlH24KO20S2
• Molecular Weight: 474.37
• Hs Code.: 28332990
• Mol file: 7784-24-9.mol

Synonyms:Aluminumpotassium disulfate dodecahydrate;Aluminum potassium sulfate (AlK(SO4)2),dodecahydrate;Sulfuric acid, aluminumpotassium salt (2:1:1), dodecahydrate (8CI,9CI);Potassium alumdodecahydrate;Potassium aluminum disulfate dodecahydrate;Potassium aluminumsulfate dodecahydrate;Potassium aluminum sulfate dodecahydrate(KAl(SO4)2.12H2O);Aluminum potassium sulfate;

Chemical Property of Aluminium potassium sulfate dodecahydrate

Chemical Property:

• Appearance/Colour: white to colourless crystals
• Melting Point: 92 °C(lit.)
• Boiling Point: 330 °C at 760 mmHg
• PSA: 288.04000
• Density: 1.757 g/cm³
• LogP: -0.94850
• Storage Temp.: Store at RT.
• Solubility.: H2O: soluble0.5M, clear, colorless
• Water Solubility.: 140 G/L (20 ºC)

Purity/Quality:

99.2%min, ^*data from raw suppliers

Aluminum potassium sulfate dodecahydrate ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn,img src=/images/Xi.gif alt=Irritant >Xi
• Hazard Codes: Xn,Xi
• Statements: 36/38-22-36/37/38-21/22
• Safety Statements: 22-24/25-37/39-26-36-20-13-2

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Uses: potassium alum (alum) is a cosmetic astringent. Aluminium potassium sulfate dodecahydrate is a white crystal that is soluble in water. It is made by roasting alunite in a furnace and then harvesting the product by crystallization. Aluminium potassium sulfate dodecahydrate was used to harden gelatin emulsions by introduction, by bathing the exposed plates prior to development, or by use in the fixing bath. Mixed with citric or other acids, it was also used as a clearing bath to remove developer stains in negatives. Buffer; floccculating reagent.