Well, we'll ship the bichromate in steel drums and the chromic anhydride in oil cans. the hypothetical acid ( H2Cr2O7) from which dichromates are derived; known only in solution and in the form of dichromate salts. 嗯,我们会把重铬酸盐用钢桶装,而无水铬酸则用油罐装。一种假定的、能从中提取重铬酸盐的酸,已知仅存在于溶液中或以重铬酸盐的形式存在。
The influences of bath components of workpiece lumen hard chromium electroplating such as chromic anhydride, sulfuric acid and trivalent chromium on deposit's performance were studied respectively. Deposit hardness decreases as the content of chromic anhydride is too high. 分别讨论了工件内腔镀硬铬液的组分&铬酸酐、硫酸和三价铬的含量对镀层性能的影响:铬酸酐的含量过高,镀层硬度降低。
Change of operating voltages in electrosynthesis process of chromic anhydride 铬酸酐电合成过程中工作电压的变化
A titrimetric method for rapid determination of the concentration of chromic anhydride and sulfuric acid in ABS roughing solution 滴定法快速测定ABS粗化液中铬酐与硫酸的浓度
The paper introduces the application of chromic flotsam natrium bisulfate in the course of neutralization and pre acidification in industry of chromic acid anhydride. 介绍铬酸酐生产中,含铬硫酸氢钠废料用于前工段中和、预酸化。
The activity of the first hydrogen ion is similar to those from sulfuric acid and can be used to analyze the concentration of chromic anhydride and sulfuric acid. 第一个氢离子的活跃程度与硫酸释放出来的氢离子相近,可用来分析铬酐与硫酸的总浓度;
STUDY ON SELECTIVE OXIDATION OF ORGANIC COMPOUNDS Oxidation of Alcohols by Ammonium Chloride Chromic Anhydride in Dry Reaction 有机化合物选择性氧化的研究氯化铵三氧化铬在干反应中对醇类的氧化
Herein, the effect of chromic anhydride content, sulfate content, rare earth additive, temperature, current density and anode on properties of bath and chromium deposits was discussed, and maintenance of the process was presented. 本文根据多年的生产实践,总结了低温、低浓度镀铬中铬酐浓度、硫酸根浓度、稀土添加剂、温度、电流密度以及阳极等因素对镀液、镀层性能的影响,并提出了管理措施。
In the presence of acetic acid and polyethylene glycol, chromic anhydride and acenaphthene react under mild condition and acenaphthene can completely convert into acenaphthenone. 在醋酸、聚乙二醇存在下,铬酸酐和苊在温和的条件下反应,苊可以完全转化为苊酮。
Quick Determination of Chromic Anhydride in Chromium Electroplating Bath Solution 电镀铬液中铬酸酐含量的快速测定
Zinc basic coating, prepared with flake zinc powder, aluminum powder, chromic anhydride and some other organic compounds, possessed good combination force and corrosion resistance. 片状锌粉与达克罗涂层的研究利用片状锌粉、铝粉、铬酐及其它有机物配制的锌基涂料具有良好的结合力和耐蚀性。
Microdetermination of arsenic content in chromic anhydride by arsenic stain method 砷斑法测定铬酐中的微量砷
The Study of Direct Potentiometry Rapid Determination of the Quantity of Chromium(ⅲ) in Chromic Anhydride Chromium Plating Solution 直接电位法快速测定铬酐镀铬液中三价铬含量的研究
Technological procedure for preparation of chromium sulfate using formaldehyde as a reductant of chromic anhydride 硫酸羟胺的合成电沉积铬中甲醛还原铬酐制备硫酸铬的工艺条件含铬的磷酸盐
A new chemical reduction procedure for preparation of chromium sulfate, using formaldehyde as a reductant to deoxidize chromic anhydride, was introduced. 以铬酐为原料,采用化学还原法,探讨了甲醛还原铬酐获取三价铬并制备硫酸铬的化学工艺条件。
Preparation of Sulfur-free and Expandable Graphite By Using Chromic Anhydride as Oxidant 用CrO3作氧化剂制备无硫可膨胀石墨
The working voltages were experimentally measured on-line at different reaction times under conditions of different temperatures, different current densities, and different initial anolyte concentrations in the electrochemical synthesis process of sodium dichromate and chromic anhydride from sodium chromate and sodium dichromate, respectively. 在线实验测得不同温度、不同电流密度、阳极液不同初始浓度时,铬酸钠电催化合成重铬酸钠和重铬酸钠电催化合成铬酸酐过程中不同反应时间下的工作电压。
With the sustained development of economy, the need for chromic anhydride as an essential feed of multiple industries is yearly increased both in China and abroad, however the supply is insufficient. The research for new synthesis methods of chromic anhydride is quite active. 随着经济的持续发展,铬酸酐作为多种工业所必需的原料,国内外需求量逐年递增,缺口甚大,合成新方法研究相当活跃。