Description
Chemical Name: Calcium Carbonate
CAS Number: 471-34-1
EINECS Number: 207-439-9
Chemical Formula: CaCO3
Molecular Weight: 100.0892
Description: White fine crystalline odorless powder.
Specification:
|
Identification [CO32- ] & [Ca2+]: |
Meet the requirements |
|
Assay [CaCO3]: |
99.5% min. |
|
Insoluble substance in acid: |
0.20% max. |
|
Loss on drying: |
1.0% max. |
|
Fluoride: |
0.005% max. |
|
Magnesium and Alkali salts: |
1.0% max. |
|
Mercury [Hg]: |
0.5ppm max. |
|
Iron [Fe]: |
0.1% max. |
|
Sulfates: |
0.25% max. |
|
Chlorides: |
0.02% max |
|
Heavy metals: |
20ppm max. |
|
Arsenic [As2O3]: |
3ppm max. |
|
Lead [Pb]: |
2ppm max. |
|
Mercury [Hg]: |
0.3ppm max. |