Barium chromate
Synonym(s):Barium chromate (BaCrO4);Barium chromate(VI);Barium chromium oxide (BaCrO4 );Barium yellow;Baryta yellow
- CAS NO.:10294-40-3
- Empirical Formula: BaCrO4
- Molecular Weight: 253.3207
- MDL number: MFCD00014180
- EINECS: 233-660-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-31 13:32:20
What is Barium chromate?
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.
The Uses of Barium chromate
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.
What are the applications of 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.
Properties of Barium chromate
Melting point: | 210 °C (dec.) (lit.) |
Density | 4.5 g/mL at 25 °C (lit.) |
solubility | reacts with acid solutions |
form | Powder |
color | Yellow |
Specific Gravity | 4.5 |
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. |
CAS DataBase Reference | 10294-40-3(CAS DataBase Reference) |
NIST Chemistry Reference | barium chromate(VI)(10294-40-3) |
EPA Substance Registry System | Barium chromate (10294-40-3) |
Safety information for Barium chromate
Signal word | Danger |
Pictogram(s) |
Flame Over Circle Oxidizers GHS03 Exclamation Mark Irritant GHS07 Health Hazard GHS08 |
GHS Hazard Statements |
H272:Oxidising liquids;Oxidising solids H350:Carcinogenicity |
Precautionary Statement Codes |
P201:Obtain special instructions before use. P202:Do not handle until all safety precautions have been read and understood. P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P308+P313:IF exposed or concerned: Get medical advice/attention. |
Computed Descriptors for Barium chromate
InChIKey | QFFVPLLCYGOFPU-UHFFFAOYSA-N |
Abamectin manufacturer
Nithyasri Chemicals (APURVA CHEMICALS)
A.B.ENTERPRISES
Trinity Pigment Industries
Divjyot Chemicals Private Limited
S D Fine Chem Limited
Pallav Chemicals And Solvents Pvt Ltd
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