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- silver sodium cyanide 氰化银钠,氰银酸钠
- The conditions of silver sulphide dissolving in sodium cyanide have been discussed by the use of thermodynamic principle and coupling reaction. 应用热力学原理和偶合反应的观点对硫化银溶于氰化钠的条件进行了讨论.
- The industralized methods of sodium cyanide, phenylacetamide,carborylation are compared. 对已工业化的苯乙酰胺法和羰基合成法、氰化钠法进行了比较。
- Chemical industry for the production of borax, sodium cyanide, formic acid, oxalic acid, phenol and so on. 化学工业用于生产硼砂、氰化钠、甲酸、草酸、苯酚等。
- Nano-sized silver sodium niobate tantalate was studied in this paper using wet-chemical method. 对液相法合成钽铌酸银钠的纳米粉体进行了研究。
- Any of various salts or esters of hydrogen cyanide containing a CN group, especially the extremely poisonous compounds potassium cyanide and sodium cyanide. 氰化物一种包含cn基团的氰化氢的盐或酯，特别是剧毒化合物氰化钾和氰化钠
- The free cyanogen determinator is used to make density analysis of free sodium cyanide in the cyanide leaching solution of gold ore. 游离氰测定仪用于金矿氰化液中的游离氰化钠浓度分析。
- DTPA was synthesized with sodium cyanide, formaldehyde and diethylenetriamine under the different conditions. Thus the best reaction condition was got. 以氰化钠、甲醛及二乙烯三胺为原料在不同条件下合成DTPA,得到最佳反应条件。
- Process of synthesizing ACVA from cyan alcohol was studied,using sodium cyanide,levulinic acid,and A as starting materials. 对氰醇法合成ACVA的工艺进行了研究，该法采用氰化钠、果糖酸及物质A为原料。
- Probing into the reaction of silver sulphide and sodium cyanide 硫化银与氰化钠反应研究
- Cyanide: Any of various salts or esters of hydrogen cyanide containing a CN group, especially the extremely poisonous compounds potassium cyanide and sodium cyanide. 氰化物:一种包含CN基团的氰化氢的盐或酯,特别是剧毒化合物氰化钾和氰化钠。
- Pruduction status and supply/demand of sodium cyanide at home and abroad were presented. Proposal for production and development of sodium cyanide in China was put forward. 介绍了国内外氰化钠的生产现状和消费结构,并对我国氰化钠生产和发展提出建议。
- The leakage of toxic gas in a Kowloon Bay unit on October 17,in which seven people were injured,including five firemen; and spillage of sodium cyanide from a lorry travelling along Tai Po Road near Kam Shan Country Park on December 4. 十月十七日，九龙湾一单位泄漏毒气，导致7人受伤，其中包括5名消防员，以及十二月四日，一辆货车驶经大埔道近金山郊野公园途中，倒下多桶氰化钠。
- The results showed that gold recoveries could be increased by fine grinding of concentrates , raising concentration of sodium cyanide in leaching solution and adding the regent SDM. 试验结果表明:提高矿样的磨矿细度和浸出液中氰化钠的浓度以及加入SDM助浸剂,均可提高金的氰化浸出率。
- The paper takes the polluting accident treatment of sodium cyanide as a case,then puts forward the countermeasures of how to treat and monitor the abruptly environmental polluting accident. 以氰化钠污染事故的处置为例介绍了监测方法,对如何做好突发性环境污染事故的处置与监测提出对策。
- Ethyl dicyanopropionate was synthesized by one-step reaction with sodium cyanide, paraformaldehyde and ethyl cyanoacetate in solvent. The yield was 80.2%, and the purity was 90.8%. 由氰化钠、多聚甲醛和氰乙酸乙酯在溶剂中反应;一步合成二氰基丙酸乙酯;收率(以氰乙酸乙酯计)达80.;2%25;含量90
- The trial object and the practice prove that by this technology,the leaching velocity was raised greatly,the consumption of sodium cyanide was dro ped greatly which has brought great benefit. 试验结果及生产实践均证明,采用该技术,能显著提高浸吸速度,降低氰化钠耗量,获得较好的经济效益,在黄金矿山具有推广应用价值。
- Keywords silver sodium tantalum-niobate;dielectrics;dopant; 钽铌酸银钠;介电性能;添加物;
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- She wore a silver chain around her neck. 她脖子上戴着一条银项链。
