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- Zinc chloride fumes 氯化锌烟尘
- Improvement of production of barium hydroxide and zinc chloride etc. 氢氧化钡、氯化锌等产品的生产工艺改进。
- Title： Improvement of production of barium hydroxide and zinc chloride etc. 关键词：硫化钡;氧化锌;氢氧化钡;硫化氢;氯化锌;硫氢化钠
- 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。
- Health standard for zinc chloride (fume) in the air of workplace 车间空气中氯化锌(烟)卫生标准
- The new determination method can improve the quantity problem of product from controlling the content of zinc chloride in activator solution by determining Baume degress method. 解决了目前工厂采用测波美度方法控制配料液浓度产生的质量问题。
- The activation energies of the reaction in the absence of catalyst and in thepresence of zinc chloride were 51.3 and 8.3kJ/mol respectively. 求得无催化剂及以氯化锌作催化剂时的反应活化能;分别为51.;3及8
- A mixture of phenol, sodium and 2-chloroethanol forms 2-phenoxyethanol, add zinc chloride, the product is 2,3-dihydrobenzofuran, yield 50%. 用苯酚和钠得到苯酚钠,苯酚钠和2-氯乙醇得到2-苯氧基乙醇,与氯化锌反应得2,3-二氢苯并呋喃,产率50%25。
- A novel method of preparing micropore activated carbons from tobacco stems impregnated with zinc chloride by microwave heating was studied. 研究了微波加热烟杆氯化锌活化法制备微孔活性炭的新工艺。
- Schultze's solution A solution of zinc chloride, potassium iodide, and iodine used mainly for testing for cellulose and hemicellulose. 溶液：为氯化锌和碘化钾的混合溶液。
- The pure zinc chloride solution can be obtained through burning to remove methanol,dissolving to seperate zinc powder and purifying to remov... 通过实际生产运行,取得很好的经济效益,同时避免了环境污染。
- A new convenient and general one-step route for preparing azines by treating aromtic aldehydes and semicarbazide with anhydrous zinc chloride as catalyst is described. 吖嗪是用途很广泛的化合物,如作染料,光敏物质,聚合单体,另外它们还是加成反应的母体化合物。
- In this paper,the mew processing of manufacturing of activated carbon from sugar cane bagasse leached with zinc chloride by microwave radiation were reported. 研究了微波辐照经氯化锌浸渍的甘蔗渣制造活性炭新工艺。
- Nano-scaled zinc sulfide (nano-ZnS) has been successfully prepared via a simple heterogeneous reaction of zinc chloride ethanol solution and hydrogen sulfide gas. 用新颖、简单的异相化学反应方法,在乙醇体系中制备了硫化锌纳米粒子。
- It summarizes the technology of synthesis and post treatment,using paraformaldehyde and biphenyl as raw material,zinc chloride to catalyzer,through chloromethylation. 以列表的方式综述了以多聚甲醛,联苯等为原料,氯化锌为催化剂经氯甲基化反应制备BCMB的合成和后处理技术。
- Firstly, we studied the carbozincation of acetylenic sulfones with organozinc reagents, which include allyl zinc bromide, benzyl zinc bromide, aryl zinc chloride, alkyl zinc chloride and diethyl zinc. 研究了烯丙基溴化锌、苄基溴化锌、芳基氯化锌、烷基氯化锌等有机锌试剂与炔基砜的碳锌化反应。
- The factory had been sending out toxic fumes. 这家工厂一直在排放有毒的废气。
- The fireman was suffocated by the fumes. 那个消防队员让浓烟憋死了。
- The optimal conditions for synthesis of alkali green 4 are reported,including the carbamide and zinc chloride as catalyst,chloranil and bichrome as oxidation agent in the acetic acid medium. 报道了合成碱性绿-4的最佳条件:在醋酸介质中,尿素、氯化锌为催化剂,四氯苯醌和重铬酸钾为氧化剂;
- This paper introduces the new method of sulphuric acid and zinc chloride to produce polymerized rosin and the product quality.The way to improve the quality of polymerized rosin is also discussed. 介绍了硫酸-氯化锌法聚合松香生产工艺及产品质量情况，并就提高聚合松香质量的途径进行了探讨。
