查询词典 potassium cyanide

The percentage of Cyanide, phenol, mercury and chromium which have little effect on water quality is small and the variation tendency is slow. The percentage of Ammoniac azote, TP, TN, Cd, potassium permanganate index and fluoride which have much effect on water quality is big and the variation tendency is great. The percentage of DO, BOD5, petrochemical compounds and lead lies in the mean place between two guidelines above, which plays a normal role in contributing to the water quality of Yuehai, but the variation tendency is obvious.

选取了15个参数作为评价因素，其中，氰化物、挥发酚、汞、六价铬等指标的权重较小，对水质变化的总体影响不大，并且年度变化趋势较平缓；氨氮、总磷、总氮、镉、高锰酸盐指数以及氟化物等指标在阅海湿地水质总体评价中所占比重较大，直接影响水道水质；DO、BOD5、石油类、铅等指标的权重介于上述指标的中间。

Mainly engaged in: Hydrogen-imide hydrochloride, o-chlorophenyl cyclopentanone, 3.4 dimethoxy ethyl benzene, butyn single potassium acid, potassium ethyl malonyl, Ding amide, amide isobutyraldehyde , allyl chloroacetate, isopropyl chloroacetate Benzyl aluminum, cyclopentene, cyanide-o-chlorophenyl, o-methyl chloride, sulfuric acid chloride, p-chlorophenol, imidazole, Pinacolone, one chlorine Pinacolone.

主要经营：盐酸氢亚胺、邻氯苯基环戊酮、3.4二甲氧基苯乙酯、丁炔二酸单钾盐、丙二酸单乙酯钾盐、丁酰胺、异丁酰胺、氯乙酸烯丙酯、氯乙酸苄酯异丙醇铝、环戊烯、邻氯苯氰、邻氯苯甲酯氯、硫酸氯、对氯苯酚、咪唑、频呐酮、一氯频呐酮。

High purity potassium silver cyanide and potassium gold cyanide were prepared using air blasting cyanidation technique for the first time.

提出了以粗金和粗银为原料制备金银的超细或纳米粉末，用鼓氧氰化技术直接制备氰化亚金钾和氰化银钾的的新方法。

Air blasting cyanidation technique was developed to prepare high purity potassium silver cyanide using raw silver or gold as a starting material.

采取金粉或银粉过量投料和控制浓缩水量，可以使反应后废液中的游离氰含量大大降低，有利于环境保护。

This method is suitable for the production of potassium silver cyanide in industry.

该方法丰富和发展了氰化亚金钾和氰化银钾的制备技术，并已经可以用于工业生产。

Potassium ferrocyanide itself is only slightly toxic,[3] although adding acid to its aqueous solution releases toxic hydrogen cyanide gas.

比如硫酸，硝酸，盐酸——这个在人胃里是消化液，醋酸）释放出有毒的氢氰酸。

The paper introduced the technics process conversion of sodium cyanide galvanization solution to potassium chloride solution.

本文介绍了将氰化钠镀锌溶液转换为氯化钾镀锌溶液的镀锌工艺过程，从工艺、健康、环保、成本等方面进行阐述。

Potassium silver cyanide and potassium gold cyanide, which stability constants are very large, were used as the starting materials for the preparation of silver and gold powders. Adjusting the concentration ratio of protective agent to reducing agent and other reaction conditions can control the size, shape and morphology of precious metals nanoparticles.

使用氰化亚金钾和氰化银钾等稳定常数很大的金和银配合物作为制备纳米金粉和银粉的前驱体，控制保护剂／还原剂的比例以及其它反应条件，可以有效地控制粒子的大小、形状以及粒子聚集体的形貌。

A new organic compound:N,N'-bis(1,10-phenanthroline-2-formacyl)-4,4'-diamino-diphenylmethane was synthesized via oxidation,esterification,substitution,hydrolysis, amidation of 1,10-phenanthroline as the starting material with chemical reagents (hydrogen peroxide,benzoyl chloride,potassium cyanide,sodium hydroxide solution,4,4'-diamino-diphenylmethane).

以邻菲啰啉为起始原料，与双氧水反应合成邻菲啰啉-N-氧化物，接着与苯甲酰氯、氰化钾、NaOH水溶液一一反应合成中间体邻菲啰啉-2-甲酸，再与4，4′-二氨基苯基甲烷进行酰胺化反应合成目标产物。

Chemical products containing gold and silver, including gold chloride, gold and potassium cyanide, gold water, silver nitrate, silver oxide, silver chloride, silver iodide, silver bromide, etc.

含金银化工产品：包括氯化金、氰化金钾、金水、硝酸银、氧化银、氯化银、碘化银、溴化银等。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。