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powder Barium Carbonate
powder Barium Carbonate

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Barium Carbonate
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Product Name: Barium Carbonate

good quality
earlier and fast shipment
competitive price
professional service


Barium carbonate (BaCO3), also known as witherite, is a chemical compound used in rat poison, bricks, ceramic glazes and cement.

Witherite crystallizes in the orthorhombic system. The crystals are invariably twinned together in groups of three, giving rise to pseudo-hexagonal forms somewhat resembling bipyramidal crystals of quartz, the faces are usually rough and striated horizontally.

The mineral is named after William Withering, who in 1784 recognized it to be chemically distinct from barytes. It occurs in veins of lead ore at Hexham in Northumberland, Alston in Cumbria, Anglezarke, near Chorley in Lancashire and a few other localities. Witherite is readily altered to barium sulfate by the action of water containing calcium sulfate in solution and crystals are therefore frequently encrusted with barytes. It is the chief source of barium salts and is mined in considerable amounts in Northumberland. It is used for the preparation of rat poison, in the manufacture of glass and porcelain, and formerly for refining sugar. It is also used for controlling the chromate to sulfate ratio in chromium electroplating baths.[1]

Barium carbonateIdentifiersPropertiesHazardsRelated compounds
Other names[hide]Witherite
CAS number513-77-9 Y
ChemSpider10121 Y
EC number208-167-3
UN number1564
RTECS numberCQ8600000
Jmol-3D imagesImage 1
Image 2
[show][Ba+2].[O-]C([O-])=O C(=O)([O-])[O-].[Ba+2]
[show]InChI=1S/CH2O3.Ba/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 Y
Key: AYJRCSIUFZENHW-UHFFFAOYSA-L Y InChI=1/CH2O3.Ba/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
Molecular formulaBaCO3
Molar mass197.34 g/mol
Appearancewhite crystals
Density4.286 g/cm3
Melting point

811 °C

Boiling point

1360 °C (decomp)

Solubility in water0.0024 g/100 mL (20 °C)
Solubilitysoluble in HCl, HNO3, ethanol
insoluble in H2SO4
Refractive index (nD)1.60
EU Index056-003-00-2
EU classificationHarmful (Xn)
S-phrases(S2), S24/25
NFPA 704020
Flash pointNon-flammable
LD50418 mg/kg, oral (rat)
Other cationsMagnesium carbonate
Calcium carbonate
Strontium carbonate


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