TY - BOOK AU - Ross,Gaylon S. AU - Enagonio,Delmo AU - Hewitt,Clifford A. AU - Glasgow,Augustus R. TI - Preparation of High Purity Trimethylborane1 PY - 1962/// PB - [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology, KW - Text KW - local N1 - /pmc/articles/PMC5327742 N2 - The preparation of high-purity trimethylborane is described. Impurities were removed by fractionation of the ammonia adduct, NH(3):B(CH3)(3). Mass spectrometric analyses were used during the fractionation to determine these impurities. After purification of the B (CH(3))(3) in the form of its ammonia adduct, high-purity hydrogen chloride was used to regenerate the B(CH(3))(3). This reaction and the subsequent distillation were carried out in a stainless steel system. Storage as a gas in stainless steel cylinders, rather than as a solid addition complex in glass vessels, eliminated the possibility of recontamination on regeneration. The purity of B(CH(3))(3) was determined cryoscopically to be 99.9 mole percent UR - http://dx.doi.org/10.6028/jres.066A.006 ER -