Aluminum potassium sulfate dodecahydrate

• Catalog No.: 12623
• CAS Number: 7784-24-9
• M. F.: AlH27KO20S2
• M. W.: 477.412218
• Purity: 99.0-100.5% (calc. on dry substance)

SYNONYMS

• Title: 硫酸铝钾 十二水合物
• IUPAC name: aluminium(3+) ion potassium dodecahydrate disulfate
• IUPAC Traditional name: aluminium(3+) ion potassium dodecahydrate disulfate
• Synonyms: Potassium alum; 钾明矾; Potassium aluminum sulfate dodecahydrate; Alum; 明矾; 硫酸钾铝 十二水合物

DATABASE IDS

• MDL Number: MFCD00149143
• CAS Number: 7784-24-9
• PubChem SID: 24847709
• EC Number: 233-141-3

PROPERTIES

• Antion Traces: chloride (Cl-): ≤50 mg/kg
• Cation Traces: As: ≤2 mg/kg
• Cation Traces: Fe:, in accordance
• Grade: puriss.
• Impurities: ≤0.001% heavy metals (as Pb)
• Impurities: ≤0.2% ammonium (NH4)
• Linear Formula: AlK(SO4)2 · 12H2O
• Loss on Drying: 43.0-46.0 loss on drying
• Purity: 99.0-100.5% (calc. on dry substance)
• Quality: meets analytical specification of Ph. Eur., BP
• Suitability: complies for appearance of solution
• Density: 1.757 g/mL at 25 °C(lit.)
• Melting Point: 92 °C(lit.)
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• RTECS: WS5690000
• German water hazard class: 3