31. In forming the adduct, the boron atom attains an octet configuration. 32. He then had graphite manufacturers produce boron -free graphite. 33. This indicates the proximity of boron to the metal-nonmetal borderline. 34. Most of the chemistry of boron is nonmetallic in nature. 35. Boron tribromide is a classical reagent for the dealkylation of methyl arylethers.36. Another commercially expanding use of boron and its derivatives is in ceramics. 37. Plants contain boron both in a water-soluble and insoluble form. 38. According to Robert de Boron , Igraine died before her second husband. 39. He was renowned for his pioneering research on boron hydrides. 40. Synonyms include boroethane, boron hydride, and diboron hexahydride.
