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- anhydrous sodium chromate 无水铬酸钠
- Pengshan Anhydrous Sodium Sulfate Plant. 安徽全力集团有限公司彭山元明粉厂。
- Aspirin is synthesized through O-acylating reaction from salicylic acid and anhydride acetic acid with anhydrous sodium carbonate as catalyst. 以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O-酰化反应合成了阿司匹林。
- The effects of the calcine size,leaching temperature,leaching time and solution-solid ration no the leaching rate of the sodium chromate in the chromium calcine are investigated. 结果表明,在试验的浸出条件下,铬焙砂粒度对铬浸出率的影响不显著,铬浸出率随浸出温度升高、液固比增大和浸出时间延长而增加。
- An anhydrous sodium borate used in the manufacture of glass and various ceramics. 无水硼砂无水硼化合物,用于制造玻璃和各种陶瓷。
- Methods:Samples were extracted by methylene chloride,dehydrated by anhydrous sodium sulfate and determinated by GC-MSD. 方法:样品用二氯甲烷萃取,无水硫酸钠脱水,气质联用法检测。
- The catalyst carrier for biomass pyrolysis was prepared by red mud,fly ash and anhydrous sodium carbonate. 以赤泥和粉煤灰为原料,无水碳酸钠为造孔剂,制备了用于生物质裂解的催化剂载体。
- This article described the crystal model of anhydrous sodium sulfate in DTB crystallizer. 论述了用DTB型结晶器结晶硫酸钠结晶模型。
- The synthesis of sucrose octaacetate(SOA) from sucrose with acetic anhydride in the presence of anhydrous sodium acetate is reported. 报道了在无水乙酸钠存在下,蔗糖和乙酸酐反应合成蔗糖八乙酸酯(SOA)。
- The reagent is a solution of sodium chromate and mitric acid.The mold can be used repeatedly as proven by a surface study under the metallurgical microscope after electroforming and separation. 处埋液为重铬钠和硝酸之混合液,经电铸和剥离试验以金相显微镜,观察表面变化情形,发现母模之多次使用是可行的。
- The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate. 研究了以无水碳酸钠为催化剂,红霉素肟与甲氧基乙氧基氯甲醚(MEMC)为原料,一步合成罗红霉素的实验过程。
- The effects of the amount of sulfuric acid, reaction duration and the addition of anhydrous sodium sulfate as dehydration agent on the yield of OFPMA were studied. 讨论了硫酸的用量、反应物配比、反应温度和反应时间对产物收率的影响。
- The behaviours,use and process technology of anhydrous sodium metasilicate,emphatically the fluid-bed,spraying and fixed-bed drying processes,are reviewed. 介绍了偏硅酸钠的性能、用途和生产工艺,着重介绍了沸腾床干燥法、喷雾干燥法和固定床干燥法。
- FOAMABLE GLASS COMPOSITION AND GLASS FOAMThis invention relates to novel foamable glass com-positions mainly composed of anhydrous sodium silicate, andfoams obtained therefrom. 此项发明涉及新型发泡玻璃合成物,以及由此产生的泡沫。
- The Deltamethrin residues were extracted with acetone-petroleum ether,purified by chromatography on anhydrous sodium sulfate aluminum oxide neutral, and determined by GC-ECD. 样品用丙酮--石油醚提取,无水硫酸钠--中性氧化铝柱净化后,用带ECD的气相色谱仪进行检测。
- The results showed that when the amounts of anhydrous sodium sulfate in paste of starch-acrylic acid graft copolymer were 5%, the viscosity retention of copolymer was about 68.5%. 实验结果表明:淀粉-丙烯酸接枝共聚物的糊料中加入5%25无水硫酸钠黏度保留值为68.;5%25;
- M ethods Samples were extracted by methylene chloride, dehydrate by anhydrous sodium sulfate, determinate by GC-MSR.esults The method is simple, efficient, rapid, accurate and sensitive. 方法样品用二氯甲烷萃取,无水硫酸钠脱水,气质联用法检测。结果方法简便、高效、快速、准确、灵敏度高。
- Preliminary study on carbonation kinetics of aqueous sodium chromate 铬酸钠碳化反应动力学研究
- THE SEPARATION OF SODIUM ALUMINATE IMPURITY FROM SODIUM CHROMATE IN CRYSTAL 铬酸钠晶体中铝酸钠杂质的分离
- The purification of anhydrous sodium sulfate 关于生产精制元明粉的探讨