1345. Boron Monoxide

Nomenclature

CAS number: 12505-77-0
Boron oxide (BO).
BO; mol wt 26.81.
B 40.32%, O 59.68%.

Description and 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.