Diboron Tetrahydroxide
Title: Diboron Tetrahydroxide
CAS Registry Number: 13675-18-8
CAS Name: Tetrahydroxydiborane(4)
Additional Names: hypoboric acid; sub-boric acid
Molecular Formula: B2H4O4
Molecular Weight: 89.65
Percent Composition: B 24.12%, H 4.50%, O 71.39%
Line Formula: B2(OH)4
Literature References: Prepd by action of steam on diboron tetrachloride: Wartik, Apple, J. Am. Chem. Soc. 77, 6400 (1955); in quantitative yield by aq hydrolysis of tetraethoxydiboron at 0°: McCloskey et al., ibid. 83, 4750 (1961).
Properties: Minute crystals, starts to lose water at about 90° in vacuo.
Status: This monograph has been retired and is no longer subject to revision or update.

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