Boron Monoxide
Title: Boron Monoxide
CAS Registry Number: 12505-77-0
CAS Name: Boron oxide (BO)
Molecular Formula: BO
Molecular Weight: 26.81
Percent Composition: B 40.32%, O 59.68%
Literature References: Exists in multiple polymeric forms, (BO)x. Prepn: E. Zintl et al., Z. Anorg. Allg. Chem. 245, 8 (1940); T. Wartik, E. F. Apple, J. Am. Chem. Soc. 77, 6400 (1955); and proposed structure: A. L. McCloskey et al., ibid. 83, 4750 (1961). VUV absorption spectrum: H. Bredohl et al., Mol. Phys. 101, 2145 (2003).
Properties: Fluffy white solid. Hygroscopic, converts back to tetrahydroxyboron on reaction with water. Sol in methanol, warm absolute ethanol, warm isopropyl alcohol. Sparingly sol in water. Insol in dimethylamine and methyl borate.

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