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ALUMINIUM AMMONIUM SULPHATE DODECAHYDRATE AR/ACS

Ammonium Alum

COAs

Packings

500 g (00500)

25 Kg (0025K)

50 Kg (0050K)

1PW1200500 1PDL00030K
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Article No. 00895 Grade AR/ACS
Purity 98% CAS No. 7784-26-1
Molecular Formula NH4AI(SO4)2.12H2O Molecular Weight 453.32
H.S. Code 2833.3010 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White powder
Odour Odorless pH value 2.6
Melting point/ Freezing point [°C] 93.5 °C Boiling point [°C] 280°C
Density [g/cm3] 1.65 Solubility in water [% weight] 14% in water

Specifications

Appearance White crystalline powder Assay 98-102%
Phosphate (PO4) Max 0.0025% Insoluble matter Max 0.005%
Reaction Not less than pH 3.0 Chloride (Cl) Max 0.001%
Nitrate (NO3) Max 0.001% Silicate (SiO3) Max 0.002%
Arsenic (As) Max 0.00005% Copper (Cu) Max 0.0005%
Iron (Fe) Max 0.001% Heavy metal (as Pb) Max 0.001%
Calcium (Ca) Max 0.05% Potassium (K) Max 0.05%
Sodium (Na) Max 0.01%

Safety Information and Hazard Symbols

Exclamation Mark
Symbol: GHS07
 Signal Word: Warning
 Hazardous Statement: H315-H319-H335
 Precaution Statement: P261-P305 + P351 + P338
Revision Date: 30-Mar-2021

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