Barium carbonate precipitated
Other name：Barium carbonate. Witherite; Nano barium carbonate. High purity barium carbonate.
CAS No.: 513-77-9
EINECS No.: 208-167-3
HS No.：2836600000
Molecular Formula: BaCO3
Molecular weight: 197.35
1. Appearance: White powder or granule
2. Specifications:
2.1. Barium Carbonate Precipitated Industry Grade
Quality standards：GB/T1614-1999
|
Item Index |
Superior product |
First grade |
Qualified product |
|
|
Barium Carbonate (BaCO3), wt%≥ |
99.2 |
99.0 |
98.5 |
|
|
Moisture(H2O) , wt%≤ |
0.30 |
0.30 |
0.50 |
|
|
Ignition residue of insoluble matters in HCl, wt%≤ |
0.15 |
0.25 |
0.50 |
|
|
Chloride (Cl), wt%≤ |
0.01 |
- |
- |
|
|
Total sulfur （SO42）,wt%≤ |
0.25 |
0.30 |
0.40 |
|
|
Iron（Fe）, wt%≤ |
0.004 |
0.004 |
0.008 |
|
|
Fineness |
Powder 125um sieve residue, wt%≤ |
0.20 |
0.30 |
0.50 |
|
Granular 850μm sieve residue , wt%≤ |
1 |
1 |
1 |
|
|
Granular 150μm sieve residue, wt%≥ |
85 |
85 |
85 |
|
2.2. Barium carbonate high purity
Quality standards：
|
Index Item |
Excellent product |
Superior product |
First grade |
|
Barium carbonate (BaCO3),, wt%≥ |
99.7 |
99.5 |
99.0 |
|
Strontium（Sr）, wt%≤ |
0.05 |
0.10 |
0.20 |
|
Calcium (Ca) , wt%≤ |
0.05 |
0.05 |
0.10 |
|
Magnesium(Mg) , wt%≤ |
0.005 |
0.005 |
0.01 |
|
Iron（Fe）, wt%≤ |
0.002 |
0.003 |
0.005 |
|
Sodium (Na) , wt%≤ |
0.005 |
0.010 |
0.020 |
|
Chloride (Cl), wt%≤ |
0.006 |
0.01 |
0.03 |
|
Heavy metal as Pb, wt%≤ |
0.002 |
0.003 |
0.003 |
|
Loss on drying (110℃)，wt%≤ |
0.3 |
0.5 |
1.0 |
3. Uses: Mainly used in electronic components, phosphor, superconductor materials, optical glass. AlsoMainly used in magnetic materials, glass, ceramics, purify water, paints, pigments, paints, building materials and steel, carburizing, manufacturing other barium salts and reagents, etc.
4. Packaging: Net wt 25kg in plastic bag lined plastic film woven bag, can also package according to customer request
5. Storage: Stored in cool and ventilated, avoid light place.
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