10294-40-3

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 NO: 10294-40-3
• Molecular Formula: BaCrO4
• Molecular Weight: 253.3207
• EINECS: 233-660-5
• Product Categories: Industrial/Fine Chemicals;Inorganics;Barium Salts;BariumMetal and Ceramic Science;Inorganic Salts;Salts;Synthetic Reagents
• Mol File: 10294-40-3.mol
• Article Data: 0

Chemical Properties

• Melting Point: 210 °C (dec.)(lit.)
• Appearance: Yellow/Powder
• Density: 4.5 g/mL at 25 °C(lit.)
• Water Solubility: Insoluble in water. Soluble in strong acids.
• Stability: Stable. Oxidizer. May react vigorously with reducing agents.
• Merck: 14,972
• CAS DataBase Reference: Barium chromate(CAS DataBase Reference)
• NIST Chemistry Reference: Barium chromate(10294-40-3)
• EPA Substance Registry System: Barium chromate(10294-40-3)

Safety Data

• Hazard Codes: O,T,N,Xn
• 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)

Usage

Description

Barium chromate is a heavy, yellow powder that forms yellow orthorhombic crystals. It has a density of 4.50 g/cm3 and is insoluble in water and organic solvents. Barium chromate is prepared from BaCl2 and Na2CrO4 solutions, followed by filtering the resulting precipitate. It is known for its use as a carrier for chromium ions, an oxidizing agent, and a pigment in various applications.

Uses

1. Used in Pyrotechnic Compositions:
Barium chromate is used as a burn rate modifier in pyrotechnic compositions, particularly in delay compositions such as delay fuses. Its oxidizing properties make it an essential component in these applications.
2. Used in Catalysts for Alkane Dehydration:
Barium chromate is used in the composition of a catalyst for alkane dehydration, where it plays a crucial role in facilitating the chemical reaction.
3. Used in Anticorrosion Jointing Pastes:
Barium chromate is used as a pigment in anticorrosion jointing pastes to prevent electrochemical corrosion at junctions of dissimilar metals. This application helps protect metal structures from corrosion and extends their lifespan.
4. Used in Artists' Colors and Coloring Glass, Ceramics, and Porcelain:
Barium chromate is utilized in the production of artists' colors due to its vibrant yellow hue. It is also used in coloring glass, ceramics, and porcelain, adding a distinctive color to these materials.
5. Used in Metal Primers:
Barium chromate is employed in metal primers, where it serves as a corrosion inhibitor. This application helps protect metal surfaces from corrosion and enhances the durability of the primer.

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.

InChI:InChI=1/Ba.Cr.4O.2H/q;;;;2*-1;;/rBaH2.CrO4/c;2-1(3,4)5/h1H2;/q;-2

Related news

Shape and size control of Barium chromate (cas 10294-40-3) nanoparticles using reverse micelle07/27/2019

The shape and size of barium chromate nanoparticles formed using a water-in-oil microemulsion prepared from the anionic surfactant AOT were examined. As a result, nanowires, nanorods, and nanodots could be synthesized by changing the raw ion concentration and by adding ethanol as a poor solvent....detailed