powder Barium Carbonate

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Product Name: Barium Carbonate

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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.

Witherite

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 number	513-77-9 Y
ChemSpider	10121 Y
UNII	6P669D8HQ8 Y
EC number	208-167-3
UN number	1564
RTECS number	CQ8600000
Jmol-3D images	Image 1Image 2
SMILES[show][Ba+2].[O-]C([O-])=O C(=O)([O-])[O-].[Ba+2]
InChI[show]InChI=1S/CH2O3.Ba/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 YKey: AYJRCSIUFZENHW-UHFFFAOYSA-L Y InChI=1/CH2O3.Ba/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2Key: AYJRCSIUFZENHW-NUQVWONBAT
Molecular formula	BaCO3
Molar mass	197.34 g/mol
Appearance	white crystals
Density	4.286 g/cm3
Melting point	811 °C
Boiling point	1360 °C (decomp)
Solubility in water	0.0024 g/100 mL (20 °C)
Solubility	soluble in HCl, HNO3, ethanolinsoluble in H2SO4
Refractive index (nD)	1.60
MSDS	ICSC 0777
EU Index	056-003-00-2
EU classification	Harmful (Xn)
R-phrases	R22
S-phrases	(S2), S24/25
NFPA 704	020
Flash point	Non-flammable
LD50	418 mg/kg, oral (rat)
Other cations	Magnesium carbonateCalcium carbonateStrontium carbonate

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powder Barium Carbonate