Barium carbonate
「Performance Characteristics」:
Barium carbonate,chemical formula BaCO3,molecular weight 197.336. White powder. It is insoluble in water, with a density of 4.43g/cm3 and a melting point of 881℃. Decompose at 1450℃ to release carbon dioxide. Slightly soluble in water containing carbon dioxide, also soluble in ammonium chloride or ammonium nitrate solution to form complexes, soluble in hydrochloric acid and nitric acid to release carbon dioxide.
「Function」:
Excipients used for ceramic coatings and optical glass are used in the manufacturing of various electronic components such as electronic ceramics, PTC thermistors, capacitors etc. Analyze iron in calcium, magnesium, manganese, and zinc. Verification and determination of halogens in organic compounds. Used for making barium salts, pigments, fireworks, rodenticide pottery, and as fillers and water clarifiers. Used for catalysts. The production of electronic ceramics and purified water, as Well as the production of pigments, coatings, or other barium salts for the production of optical glass, barium magnetic materials, etc., are important chemical raw materials for the production of picture tube glass shells, magnetic materials, and advanced optical glass. Treating excessive sulfate ions in chromium plating electrolyte can also be used in white passivation solution of zinc plating layer, and can slso be used to treat wastewater.
「Product quality」:
Comply with HG/1614-2011
「Molecular Formula」:
BaCO3
「Molecular Weight」:
197.336
「EINECS」:
208-167-3
「CAS No.」:
513-77-9
E-mail:
kehui.xu@gmail.com
Phone:
+86-15810661525
Technique Request
| Items | Index | |||
|---|---|---|---|---|
|
|
|
Premium Grade |
First Grade |
Qualified Grade |
|
Main content (calculated as BaCO₂) |
w/% ≥ |
99.2 |
99.0 |
98.5 |
|
Strontium Carbonate（SrCO₃） |
w/% ≤ |
0.4 |
1.0 |
2.0 |
|
Water content |
w/% ≤ |
0.3 |
0.3 |
0.3 |
|
Ignition residue of hydrochloric acid insolubles |
w/% ≤ |
0.1 |
0.2 |
0.4 |
|
Chloride (calculated as Cl) |
w/% ≤ |
0.01 |
– |
– |
|
Total sulfur (calculated as SO₄) |
w/% ≤ |
0.25 |
0.35 |
0.45 |
|
Iron（Fe） |
w/% ≤ |
0.001 |
0.003 |
0.005 |
|
Sodium（Na） |
w/% ≤ |
0.1 |
0.15 |
0.3 |
|
Finenessᵃ（Powder residue on 125μm test sieve） |
w/% ≤ |
0.2 |
0.3 |
0.5 |
|
Finenessᵃ （Granular sieve residue） |
The solution shall be determined through user negotiation. |
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|
For powder products used in ceramic capacitors, the fineness shall meet: residue on 45μm sieve ≤1%. |
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