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Bases

Aluminium Hydroxide Gel

RA000490 CAS 21645-51-2 Extra Pure

Identity

Product code
RA000490
CAS number
21645-51-2
Grade
Extra Pure
Assay (specification)
47.0 - 60.0 %
Molecular formula
Al(OH)3
Molecular weight
78.0

Classification

Categories
Bases primary

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour White crystalline —
Odour Odorless —
pH value Min 7 —
Melting point/ Freezing point [°C] 300 °C °C
Density [g/cm3] 2.42 g/cm3 g/cm3
Solubility in water [% weight] Insoluble in water —

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

Specifications

ParameterSpecificationUnit
Appearance White, light, amorphous powder —
Microbial contamination Free from E.Coli —
Assay 47.0 - 60.0 % %
Identification Passes IP test —
pH Max 10.0 —
Arsenic (As) Max 0.0005 % %
Heavy metal Max 0.006 % %
Chloride (Cl) Max 1.25 % %
Sulphate (SO4) Max 1.2 % %
Neutralising capacity Passes IP test —

Packaging

Pack size SKU
250 g RA000490-PK-250G
25 kg RA000490-PK-25KG
500 g RA000490-PK-500G