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Inorganic Salts

Calcium Sulphate Dihydrate Extra Pure

RA000938 CAS 10101-41-4 Extra Pure

Identity

Product code
RA000938
CAS number
10101-41-4
Grade
Extra Pure
Purity
98%
Molecular formula
CaSO4.2H2O
Molecular weight
172.17

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour White powder —
Odour Odorless —
Melting point/ Freezing point [°C] 1450 °C °C
Density [g/cm3] 2.32 g/cm3 g/cm3
Solubility in water [% weight] Slight (0.1-1%) —

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

Specifications

ParameterSpecificationUnit
Appearance White powder —
Assay 98 - 102 % %
Insoluble matter in HCl Max 0.02 % %
Loss on ignition (at 800°C; 4 hrs) (800 °C) 18 - 22 % %
Iron (Fe) Max 0.002 % %
Heavy metal Max 0.005 % %
Chloride (Cl) Max 0.03 % %

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
500 g RA000938-PK-500G
50 kg RA000938-PK-50KG