Barium chromate CAS 10294-40-3
Introduction：Basic information about Barium chromate CAS 10294-40-3, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Barium chromate Basic information
| Product Name: | Barium chromate |
| Synonyms: | Barium cromate;Barium Chromate, Puratronic (Metals Basis);Barium chromate: chromic acid, barium salt;BARIUM CHROMATE;c.i.77103;c.i.pigmentyellow31;Chromic acid (H2-CrO4), barium salt (1:1);Chromic acid, barium salt (1:1) |
| CAS: | 10294-40-3 |
| MF: | BaCrO4 |
| MW: | 253.3207 |
| EINECS: | 233-660-5 |
| Product Categories: | Inorganics;Barium Salts;BariumMetal and Ceramic Science;Inorganic Salts;Salts;Synthetic Reagents;Industrial/Fine Chemicals |
| Mol File: | 10294-40-3.mol |
Barium chromate Chemical Properties
| 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. |
| InChI | 1S/Ba.Cr.4O/q+2;;;;2*-1 |
| InChIKey | QFFVPLLCYGOFPU-UHFFFAOYSA-N |
| SMILES | [Ba++].[O-][Cr]([O-])(=O)=O |
| 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
| 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 | TSCA listed |
| HazardClass | 5.1 |
| PackingGroup | III |
| Storage Class | 5.1B - Oxidizing hazardous materials |
| Hazard Classifications | Acute Tox. 4 Inhalation Acute Tox. 4 Oral Carc. 1B Ox. Sol. 2 |
| Hazardous Substances Data | 10294-40-3(Hazardous Substances Data) |
| Toxicity | sce-ham:ovr 100 mg/L MUREAV 156,219,85 |
| 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 humancarcinogen. A poison. Mutation datareported. Reacts vigorously with reducingmaterials. See also BARIUMCOMPOUNDS (soluble) andCHROMIUM COMPOUNDS. Used inpyrotechnics and as an explosive initiator. |
Barium chromate Preparation Products And Raw materials
| Raw materials | Sodium dichromate dihydrate-->Potassium dichromate-->Barium sulfate-->Barium hydroxide-->Barium chloride-->Barium hydroxide octahydrate-->Filter press-->Zinc chromate |
| Preparation Products | Barium sulfate |
