CAS No.: 513-77-9
EINECS No.: 208-167-3
H.S. code: 28366000Molecular Weight: 197.34Molecular Formula: BaCO3
Specific gravity: 4.43
Melting point: 1740
Hazard Class: 6.1 UN/NA: UN1564
Appearance: white powder or granular
Uses:
Manufacture of special glass (glassy shell of video picture tube), construction materials, ceramics, magnetic materials, various barium salts; Also used as chemical reagent, etc.
Specifications:
|
Item |
Special grade |
First grade |
Second grade |
|
|
Main content(on BaCO3 basis) |
99.2% |
99% |
98.5% |
min |
|
Moisture |
0.3% |
0.3% |
0.3% |
max |
|
Total sulphur(on SO4 basis) |
0.25% |
0.35% |
0.45% |
max |
|
HCI insoluble matters |
0.15% |
0.25% |
0.50% |
max |
|
Iron (on Fe basis) |
0.004% |
0.004% |
0.008% |
max |
|
Chloride(on CL basis) |
0.01% |
--- |
--- |
max |
|
Fineness |
--- |
--- |
--- |
--- |
|
residue on 125um sieves |
0.20% |
0.30% |
0.50% |
max |
