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Product Name

 CALCIUM SULPHATE DIHYDRATE AR

Article No

 C0058005000

CAS No

 10101-41-4

Molecular Formula

 CaSO4.2H2O

Molecular Weight

 172.17

Specifications

Appearance:

 White powder

Chloride (Cl):

 Max 0.005%

Sodium (Na):

 Max 0.02%

Iron (Fe):

 Max 0.001%

Magnesium (Mg):

 Max 0.01%

Nitrate (NO3):

 Passes test

Potassium (K):

 Max 0.005%

Heavy metals (by ICP-OES):

 Max 0.002%

Strontium (Sr):

 Max 0.05%

Substance insoluble in HCl:

 Max 0.01%

Assay (as CaSO4.2H2O; complexometric):

 99.0-102.0%

Total nitrogen (N):

 Max 0.001%

Carbonate:

 Passes test

Free acid (as H2SO4):

 Max 0.01%

Free alkali (as Ca(OH)2):

 Max 0.01%