| 摘要 |
High-purity trimethylaluminum has the following impurity contents: organosilicon components<=0.5 ppm, chlorine components<=20 ppm, hydrocarbon components<=1,000 ppm, Ca<=0.05 ppm, Fe<=0.05 ppm, Mg<=0.05 ppm, Na<=0.05 ppm, Si (Si components other than the organosilicon components)<=0.07 ppm, Zn<=0.05 ppm, and S<=0.05 ppm. The high-purity trimethylaluminum can be obtained by removing impurities from crude trimethylaluminum through distillation and evaporation.
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