Anonymous 5/28/2023 10:30:00 No. 90811 [Open] [Reply] Actions report Hide Thread Hide Post >>/90482/ > рецепты зеленого дракона B5H11 An improved synthesis starts from salts of octahydrotriborate (B3H8−), which is converted to the bromide B3H7Br− using HBr. Pyrolysis of this bromide gives pentaborane.