查询词典 zinc sulfate

ZnO nanostructures were fabricated by a hydrothermal decomposition method of mixing appropriate quantities of ammonia (25%) and zinc chloride solution.

以氯化锌(ZnCl2)和25%浓度氨水(NH3H2O)为原料，采用水热法制备了ZnO纳米材料。

Activated carbon was prepared from flax residue with zinc chloride (ZnCl_2) by microwave radiation.

以亚麻屑为原料，采用微波辐射氯化锌法制备活性炭。

However, feed efficiency of pigs fed diets containing 1000 and 2000 ppm basic zinc chloride were improved by 4.27 and 5.92 % when compared to those of the control and the ZnO 3000 ppm groups, respectively.

在表3日粮处理组中，断奶仔猪的初重、后重、平均日采食量和平均日增重差异不明显，但是与对照组和3000 ppm氧化锌组分别比较，在试猪中饲喂1000和2000 ppm碱式氯化锌分别提高4.27和5.92%。

The determination of zinc chloride and ammonium chloride in electrolyte of dry cells was stu died based on the principle of complexometric titration and acid alkali titration.

应用络合滴定和酸碱滴定的原理，对干电池电解液中氯化锌氯化铵的测定进行了探讨。

The method is sensitive, selective and has been applied to determine the trace germanium in flue dust and zinc concentrate with satisfactory results.

方法灵敏，选择性较高，用于烟道灰和锌精矿中微量锗的测定，结果满意。

Starting from pentachloropyridine, intermediate product 2,3,5,6-tetrachloropyridine was prepared by reduction with zinc dust .

以五氯吡啶为原料，通过锌粉还原制备出中间产物2，3，5，6-四氯吡啶，再由2，3，5，6-四氯吡啶水解，制备出农药中间体3，5，6-三氯吡啶-2-酚。

This paper describes experimental process and results for recovering zinc from flue dust and analyses the technical features and economic superiority of chlorine removal from copper residue .

介绍了烟尘中锌的回收试验过程及结果，分析了铜渣除氯的技术特点和经济优

Anhydrous alcohol and glacial acetic acid were used as component solvent, which the volume ratio was 2:1, zinc dust as reductant, reaction temperature was 25~35℃, reaction time was 2 h, the yield was 81%.

在还原反应中采用无水乙醇和冰醋酸的混和溶剂，两种溶剂的体积比为2：1，以锌粉为还原剂，反应温度为25~35℃，反应时间为2h，产率为81%。

The new reactions induced by low-valenttitanium reagent and the reactions catalyzed by active zinc dust.

共研究了十三个反应，包括八个系列反应。

Chapter three: The studies of zinc dust assisted the green carbonyl olefination under thesolvent-free conditions.

第三章：锌粉促进无溶剂下羰基化合物的绿色烯基化反应研究该部分首次研究了在TMSiCl存在下，无溶剂非催化条件下，锌粉促进溴化苄与羰基化合物的烯基化反应，发现在无溶剂锌粉促进下，可以将羰基化合物立体选择性

This was not understood at the time, and therefore went unaddressed, until ascension became so distorted that we chose to stop ascending and wait for a time when all records would be revealed.

这在当时没有被了解，因此进行着无改编，直到提升变得如此扭曲，我们选择去停止提升并等待所有记录能被揭示的那一天。

The attack＇s nuisance value is increased because mobile phone networks also send notifications of new voicemail by sms,so an attacked phone may stop advising of new voice messages too,it warned.

它警告：这种攻击的危害增长是因为移动电话网络也会通过短信发送新语音邮件的通知。所以受到攻击的手机可也以停止新的语音信息的提示。