The isopropyl amine is used as extractive and purifying agent to give the final sodium borohydride with high purity and yield of 47.8%. 用异丙胺对产物进行萃取提纯,制得了纯度较高、收率为47.;8%25的硼氢化钠产品。
Several production methods, application and market demands of methy isopropyl ketone were introduced. 介绍了甲基异丙基酮的生产方法、应用、市场需求。
Scrub each optical surface with a gauze pad soaked in isopropyl alcohol. Rinse thoroughly with distilled water. 光学表面用含异丙醇的网垫擦净。然后用蒸馏水漂洗。