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- New progress for phenylacetone synthesis from organic zinc reagent and acetic anhydride was studied. 实验研究了以氯化苄为原料合成药物中间体苯基丙酮的新工艺。
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- zinc reagent 锌试剂
- An alloy composed of lead, tin, and zinc. 铅锡锌化合物由铅、锡和锌组成的一种合金
- You should first put a small piece of zinc plate into the cup. 首先,要向杯子里放一小片锌板。
- The reagent possesses specificity for water. 这种试剂对水有特殊的作用。
- The fusion of copper and zinc makes the metal brass. 铜和锌的熔化制成黄铜。
- L-Methyl glyoxylate is an important chiral reagent. 二羟乙酸L-薄荷酯是一种重要的手性试剂。
- This reagent attacks feldspars and dark minerals. 这种反应物质侵蚀长石和音色矿物。
- An alloy of zinc and copper used as imitation gold. 铜锌合金作为仿金品使用的铜锌合金
- An alloy of copper, zinc, and tin, used in imitation gold jewelry. 金色铜一种由铜、锌和锡制成的合金,用于仿制黄金首饰
- Luoyang Tiancheng Chemical Reagent Co., Ltd. 洛阳天骋化学试剂有限公司。
- Tianjin Damao Chemical Reagent Co., Ltd. 天津大茂化学试剂公司。
- BEIJING HENGJU OILFIELD CHEMICAL REAGENT CO., LTD. 北京市恒聚油田化学剂有限公司。
- They often use oriole reagent in their experiments. 他们在实验过程中,要经常用到吡咯试剂。
- The fusion of copper and zinc make the metal brass. 铜和锌的熔化制成黄铜。
- Zinc is generally caustic to foliage. 锌常对幼叶有腐蚀作用。
- Zinc displaces the hydrogen of dilute acids. 锌置换了稀酸中的氢。
- The process of engraving zinc printing plates. 制锌版术雕刻锌印刷版的过程