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Inorganic Salts

Aluminium Ammonium Sulphate Dodecahydrate AR/ACS

RA000485 CAS 7784-26-1 AR/ACS

Identity

Product code
RA000485
CAS number
7784-26-1
Grade
AR/ACS
Purity
98%
Molecular formula
NH4Al(SO4)2.12H2O
Molecular weight
453.32

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour White powder —
Odour Odorless —
pH value 2.6 —
Melting point/ Freezing point [°C] 93.5 °C °C
Boiling point [°C] 280 °C °C
Density [g/cm3] 1.65 g/cm3 g/cm3

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit
Appearance White crystalline powder —
Copper (Cu) Max 0.0005 % %
Iron (Fe) Max 0.001 % %
Heavy metal Max 0.001 % %
Calcium (Ca) Max 0.05 % %
Potassium (K) Max 0.05 % %
Sodium (Na) Max 0.01 % %
Assay 98 - 102 % %
Phosphate (PO4) Max 0.0025 % %
Insoluble matter Max 0.005 % %
Chloride (Cl) Max 0.001 % %
Nitrate (NO3) Max 0.001 % %
Silicate (SiO3) Max 0.002 % %
Arsenic (As) Max 0.00005 % %

4 grades of this substance are listed. Each grade is a separate product with its own specifications, pack sizes and documents.

Packaging

Pack size SKU
25 kg RA000485-PK-25KG
500 g RA000485-PK-500G
50 kg RA000485-PK-50KG