Barium oxalate

Barium oxalate is a chemical compound with the chemical formula BaC2O4. It is a barium salt of oxalic acid. It consists of barium cations Ba2+ and oxalate anions C2O2−4. It is a white odorless powder that is sometimes used as a green pyrotechnic colorant generally in specialized pyrotechnic compositions containing magnesium metal powder. Flame color is rich and vivid without additional chlorine donors. Such compositions burn rate is satisfied without commonly used oxidizers as nitrates, chlorates and perchlorates.

Barium oxalate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.007.471
UNII
  • InChI=1S/C2H2O4.Ba/c3-1(4)2(5)6;/h(H,3,4)(H,5,6);/q;+2/p-2 Y
    Key: GXUARMXARIJAFV-UHFFFAOYSA-L Y
  • InChI=1/C2H2O4.Ba/c3-1(4)2(5)6;/h(H,3,4)(H,5,6);/q;+2/p-2
    Key: GXUARMXARIJAFV-NUQVWONBAK
  • [Ba+2].[O-]C(=O)C([O-])=O
Properties
BaC2O4
Molar mass 225.345 g·mol−1
Appearance White powder
Odor Odorless
Density 2.658 g/cm3
Melting point 400 °C (752 °F; 673 K) (decomposes)
0.9290 mg/L
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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