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ALUMINIUM SULPHATE OCTADECAHYDRATE Extra Pure

Alum; Dialuminum sulfate octadecahydrate

COAs

Packings

500 g (00500)

25 Kg (0025K)

50 Kg (0050K)

1PW1200500 1PDL00030K 1PDLP0065K
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Article No. 00973 Grade Extra Pure
Purity 98% CAS No. 7784-31-8
Molecular Formula AI2(SO4)3.18H2O Molecular Weight 666.42
H.S. Code 2833.2210 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White powder
pH value 3 - 4 Melting point/ Freezing point [°C] 86 °C
Solubility in water [% weight] Soluble in water

Specifications

Appearance A white crystalline powder Assay ( as AI2(SO4)3.18H2O]; complexometric) Min 98.0%
pH (2% solution in water) 2.5 - 4.0 Chloride (Cl) Max 0.005%
Heavy metal (as Pb) Max 0.002% Ammonium (NH4) Max 0.005%
Arsenic (As) Max 0.001% Calcium (Ca) Max 0.02%
Iron (Fe) Max 0.005% Potassium (K) Max 0.2%
Alkalies & alkaline earth metals Max 0.4%

Safety Information and Hazard Symbols

Corrosion
Symbol: GHS05
 Signal Word: Danger
 Hazardous Statement: H318
 Precaution Statement: P280-P305 + P351 + P338
Revision Date: 05-Jan-2022

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