Triphenylsilicyl ethylammine (C6H5) 3Si· C2H5NH2 CA Kraus, H Eatough Index: Journal of the American Chemical Society, , vol. 55, p. 5008 - 5014 Full Text: HTML Citation Number: 18 Abstract ... [CONTRIBUTION FROM THE CHEMICAL LABORATORY OF ... On adding methyl iodide, the color...
6HF+SiO2middot;nH2Orarr;H2SiF6+(n+2)H2O 从上述反应式中可以看出,当含氟气体中HF含量比例过低,HF和SiF4的物质的量比小于2时,主要产物除了H2SiF6外,还会有硅胶析出,这样对氟吸收系统会产生障碍。因此,浓缩时最好把磷酸的终点浓度控制在P2O5质量分数为50%以上,同时鉴于逸出的含氟气体SiF4蒸气压比HF高,向酸...