Article No. 02480
Purity 99%
Molecular Formula CaSO4.2H2O
H.S. Code 2833.2990
Grade AR/ACS
CAS No. 10101-41-4
Molecular Weight 172.17
Shelf Life 60 Months

Physical Properties

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

Specifications

Appearance White powder Assay (as CaSO4.2H2O; complexometric) 99.0-102.0%
Substance insoluble in HCl Max 0.01% Carbonate Passes test
Nitrate (NO3) Passes test Free acid (as H2SO4) Max 0.01%
Free alkali (as Ca(OH)2) Max 0.01% Chloride (Cl) Max 0.005%
Total nitrogen (N) Max 0.001% Iron (Fe) Max 0.001%
Heavy metals (by ICP-OES) Max 0.002% Potassium (K) Max 0.005%
Magnesium (Mg) Max 0.01% Sodium (Na) Max 0.02%
Strontium (Sr) Max 0.05%

Safety Information and Hazard Symbols

Safety Statement: 22-24/25