CAS No 7787-35-1 , barium(2+)

Title: Barium Manganate(VI)
CAS Registry Number: 7787-35-1
Synonyms: Manganese green; Cassel's green; Rosenstiehl's green
Molecular Formula: BaMnO4
Molecular Weight: 256.26
Percent Composition: Ba 53.59%, Mn 21.44%, O 24.97%
Literature References: Prepn: Schlesinger, Stems, J. Am. Chem. Soc. 46, 1965 (1924); Jellinek, J. Inorg. Nucl. Chem. 13, 329 (1960); R. S. Nyholm, P. R. Woolliams, Inorg. Synth. 11, 56 (1968); Bayan, Aymonino, Ber. 101, 3337 (1968); H. Firouzabadi, Z. Mostafavipoor, Bull. Chem. Soc. Jpn. 56, 914 (1983).
Properties: Dark blue-green crystals. d 4.85. Disproportionates in water or dil acid to form Ba(MnO4)2 and MnO2.
Density: d 4.85
Use: As pigment in fresco painting instead of Scheele's green because not so poisonous as latter. As mild oxidizing agent in organic synthesis.