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Lab Chemicals
Inorganic Salts
ALUMINIUM AMMONIUM SULPHATE DODECAHYDRATE
ALUMINIUM AMMONIUM SULPHATE DODECAHYDRATE AR/ACS
Ammonium Alum
Article No.
00895
Grade
AR/ACS
Purity
98%
CAS No.
7784-26-1
Molecular Formula
NH
4
AI(SO
4
)
2
.12H
2
O
Molecular Weight
453.32
H.S. Code
2833.3010
Shelf Life
60 Months
MSDS
DE
EN
FR
KO
PT
ES
TH
TR
Certificate of Analysis (COAs)
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
Packings
500 g
(00500)
25 Kg
(0025K)
50 Kg
(0050K)
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
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338
Revision Date :
30-Mar-2021