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Aluminium Ammonium Sulphate Dodecahydrate 98% Extrapure
Ammonium alum ;Ammonium Aluminium Sulphate

Product Code.
00115
Grade
Extrapure
Purity
Min 98%
CAS No.
7784-26-1
Molecular Formula
NH4AI(SO4)2.12H2O
Molecular Weight
453.32
H.S.Code
2833.30100
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

Packaging

Specification

Appearance
White crystalline powder
Assay (complexometric)
Min 98.0%
Chloride (Cl)
Max 0.005%
Heavy metal (as Pb)
Max 0.005%
Arsenic (As)
Max 0.003%
Iron (Fe)
Max 0.001%
Substance not precepitate by NH3 (as SO4)
Max 0.3%

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338