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- A new route for preparing 2,4-dinitrophenylhydrazones by treating aromic aldehydes or alkane ketones and 2,4-dinitrophenylhydrazines with anhydrous calcium chloride as a catalyst. 研究了以无水氯化钙为催化剂在中性条件下合成2,4-二硝基苯腙的新方法。
- CATALYTIC SYNTHESIS OF CYCLOHEXYL FORMATE WITH ANHYDROUS CALCIUM CHLORIDE 无水氯化钙催化合成甲酸环己酯
- DISTINCTION BETWEEN LONG-TERM PRESERVED CORNEA BY DESICCATION WITH ANHYDROUS CALCIUM CHLORIDE AND NORMAL FRESH CORNEA 无水氯化钙干燥长期保存角膜与正常新鲜角膜形态学上的区别
- Keywords iso-pentyl acetate;anhydrous calcium chloride;aluminium chloride;catalytic esterification; 乙酸异戊酯;无水氯化钙;氯化铝;催化酯化;
- Keywords phospho molybdic heteropoly acid;anhydrous calcium chloride;catalytic synthesis;butyl actate; 磷钼杂多酸;无水氯化钙;催化合成;醋酸丁酯;
- anhydrous calcium chloride 无水氯化钙
- Calcium chloride anhydrous is (a kind of) consumable during operation (in work process) and should be added regularly. 无水氯化钙在工作过程中为消耗品,定期需补充。
- Calcium chloride anhydrous dryer can absorb the moisture content (water) in acetylene to make the acetylene dryer by using the absorbent of calcium chloride. 无水氯化钙干燥器利用无水氯化钙的吸水性能来吸收乙炔气中的水分,达到乙炔的干燥效果。
- By way of adding sodium sulfite anhydrous,calcium chloride anhydrous and vitamin C,control the temperature of sterilization,restrain the brown change when the brown sauce is processed stored and sold. 通过添加无水亚硫酸钠、无水氯化钙、维生素C、控制灭菌温度 ,抑制面酱在加工、贮存、销售时的继续褐变
- The effects of Calcium Chloride on improving the salt resistance of Zea mays L. 氯化钙在提高玉米抗盐性方面的作用。
- A colorless,white,gray,blue,or lilac mineral of anhydrous calcium sulfate,CaSO4,occurring as layers in gypsum deposits. 硬石膏,无水石膏一种无色,白色,灰色,蓝色或淡紫色无水硫酸钙矿物,CaSO4,出现在石膏沉积岩层中
- A colorless, white, gray, blue, or lilac mineral of anhydrous calcium sulfate, CaSO4, occurring as layers in gypsum deposits. 硬石膏,无水石膏一种无色,白色,灰色,蓝色或淡紫色无水硫酸钙矿物,CaSO4,出现在石膏沉积岩层中
- For the purpose of computing the amounts in column 3, disodium ethylene diamine tetraacetate shall be calculated as anhydrous calcium disodium ethylene diamine tetraacetate. 就计算第3栏的分量而言,乙二胺四乙酸二钠须以计算无水乙二胺四乙酸二钠钙的方法计算。
- In particularly dry climates, it is often found necessary to add a little calcium chloride in order to retain sufficient moisture to ensure cohesion. 尤其在干燥气候条件下,为了保持足够的湿度而确保内聚力,有必要加入少量的氯化钙。
- It should not be combined with acidic medicine, e.g. vitamin C, calcium chloride, penicillin, etc. 忌于酸性药物如维生素C、氯化钙、青?素等配伍使用。
- More than half also used calcium chloride, and one-fifth used calcium magnesium acetate (CMA). 其中半数以上是氯化钙,1/5是乙酸镁钙(CMA)。
- Production : calcium chloride, magnesium chloride. Sales : chemical products (excluding dangerous goods). 生产:氯化钙、氯化镁。销售:化工产品(不含危险品)。
- By which of the fellowing methods may metallic calcium be obtained from molten calcium chloride? 用下列哪一种方法,可以从融化的氯化钙中制取钙单质?
- A new method about the preparation of Zinc Chloride of high purity from marmatite and calcium chloride is introduced. 介绍了利用锌精矿制备高纯度氯化锌的理论探索和新的工艺条件研究。
- Industrial calcium chloride aqueous solution used as anti-icing fluid has some corrosive action to common metals. 工业氯化钙水溶液作为防冻液有一定的腐蚀性。