The reaction of SiF4 with solid silicon or silicon carbide at 1200°–1850° forms gaseous species which, on condensation with BF3 at –196°, yield SiF3BF2 in addition to known silicon boron fluorides.
SiF 4与固态
硅或碳化
硅在1200°–1850°的反应形成气态物质,在与BF 3于–196°冷凝时,除已知的
氟化硼硅外,还会生成SiF 3 BF 2。