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Barium oxalate (BaC2O4), a barium salt of oxalic acid, is a white odorless powder that is sometimes used as a green pyrotechnic colorant generally in specialized pyrotechnic compositions containing magnesium.
B 1340 (OTTO) Barium oxalate Cas 516-02-9 - used as a green pyrotechnic colorant in specialized pyrotechnic compositions contain Magnesium.