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Barium chromate

CAS No.10294-40-3
Chemical Name:Barium chromate
CBNumber:CB4674975
Molecular Formula:BaCrO4
Formula Weight:253.3207
MOL File:10294-40-3.mol

Barium chromate Property

Melting point 210 °C (dec.) (lit.)
Density 4.5 g/mL at 25 °C (lit.)
solubility reacts with acid solutions
form Powder
Specific Gravity 4.5
color Yellow
Water Solubility Insoluble in water. Soluble in strong acids.
Merck 14,972
Solubility Product Constant (Ksp) pKsp: 9.93
Exposure limits OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3
Stability Stable. Oxidizer. May react vigorously with reducing agents.
InChIKey QFFVPLLCYGOFPU-UHFFFAOYSA-N
CAS DataBase Reference 10294-40-3(CAS DataBase Reference)
FDA UNII 7D7O9CF0IX
NIST Chemistry Reference barium chromate(VI)(10294-40-3)
EPA Substance Registry System Barium chromate (10294-40-3)
UNSPSC Code 12352302
NACRES NA.23

Safety

Hazard Codes :O,T,N,Xn
Risk Statements :49-8-20/22-43-50/53
Safety Statements :53-36/37-45-60-61-28
RIDADR :UN 1479 5.1/PG 2
WGK Germany :3
RTECS :CQ8760000
TSCA :Yes
HazardClass :5.1
PackingGroup :III
Hazardous Substances Data :10294-40-3(Hazardous Substances Data)
Toxicity :sce-ham:ovr 100 mg/L MUREAV 156,219,85

NFPA 704:

	0
2		0
	OX

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H272-H302+H332-H350
Precautionary statements P201-P202-P210-P301+P312-P304+P340+P312-P308+P313

Barium chromate Price More Price(13)

Brand: Sigma-Aldrich(India)
Product number: 573906
Product name : Barium chromate
Purity: 99.999% trace metals basis
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Brand: Sigma-Aldrich(India)
Product number: 401056
Product name : Barium chromate
Purity: ≥98%
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Brand: Sigma-Aldrich(India)
Product number: 401056
Product name : Barium chromate
Purity: ≥98%
Packaging: 1KG
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Brand: ALFA India
Product number: ALF-014669-A1
Product name : Barium chromate, 98%
Purity:
Packaging: 1kg
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Brand: ALFA India
Product number: ALF-014669-30
Product name : Barium chromate, 98%
Purity:
Packaging: 250g
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Barium chromate Chemical Properties,Usage,Production

Chemical Properties Barium chromate is a heavy, yellow powder(s); rhomb, monoclinic; prepared from BaCl2 and Na2CrO4 solutions, followed by filtering resulting precipitate; used in safety matches, as a corrosion inhibitor.[MER06] [HAW93]
Physical properties Yellow orthorhombic crystal; density 4.50 g/cm³; darkens on heating; insoluble in water and organic solvents; dissolves in mineral acid with decomposition.
Uses Barium chromate has been found to be useful in many capacities. It is an oxidizing agent, making it useful as a burn rate modifier in pyrotechnic compositions. It is especially useful in delay compositions such as delay fuses. Barium chromate is used as a pigment, oxidizing agent, colorant in glass, and sulfate scavenger in chromium electroplating baths, ceramics, and porcelain. It acts as a corrosion inhibitor in jointing pastes and metal primers. Further, it is used in fuses, safety matches, ignition control devices and high-temperature batteries. In addition to this, it is used as a carrier for the chromium ions and useful as a burn rate modifier in pyrotechnic compositions. It is involved as a catalyst in the alkane dehydration reaction.
Application Barium chromate is an oxidizing chemical compound composed of the elements barium and chromium. It is a pigment almost entirely in anticorrosion jointing pastes to prevent electro-chemical corrosion at junctions of dissimilar metals; some use in artists' colors and in coloring glass, ceramics, porcelain. Also used in metal primers, pyrotechnic compositions.
Preparation Interaction of barium chloride and sodium chromate. The precipitate is washed, filtered and dried.
BaCl2+Na2CrO4→BaCrO4↓+2NaCl
Hazard Confirmed carcinogen.
Safety Profile Confirmed human carcinogen. A poison. Mutation data reported. Reacts vigorously with reducing materials. See also BARIUM COMPOUNDS (soluble) and CHROMIUM COMPOUNDS. Used in pyrotechnics and as an explosive initiator.