查询词典 sulfuric acid

A newel technique proves that the chlorine dioxide is produced by the reaction of sodium chlorate with hydrogen peroxide under the existence of sulfuric acid.

利用实验室搭建的二氧化氯反应装置，用过氧化氢在硫酸介质中还原氯酸钠，制备二氧化氯水溶液。

Understanding of the manufacture of sulfuric acid in two ways, contact the Law and nitrification.

了解制造硫酸的两种方法，接触法和硝化法。

The nitrile (28 g) was mixed with 26 ml of concentrated sulfuric acid.

将28克腈化物与26毫升浓硫酸进行混合。

The 1,5-Bis(4-aminophenylazo) anthraquinone, 1,5-bis(4-hydroxyphenyl azo) anthraquinone and 1,5-bis(3-methyl-4-hydroxyphe nylazo) anthraquinone were synthesized by diazotizing 1,5-biaminoanthraquinone with nitrosyl sulfuric acid and coupling with aniline, phenol and o-cresol.

合成以1，5-二氨基蒽醌为原料，经亚硝酰硫酸重氮化，分别和苯胺、苯酚及邻甲酚偶合，得到双（4-氨基苯）－1，5-二偶氮蒽醌，双（4-羟基苯）－1，5-二偶氮蒽醌和双（3-甲基－4-羟基苯）－1，5-二偶氮蒽醌，反应产率达47%~62%。

Nonflammable. Reacts with water to produce sulfuric acid.

不可燃。与水反应产生硫酸。

From the reaction of Zinc and Sulfuric acid, this artide describes the matter of the reaction and ad-vances that the Overpotential is mostly factor of these reactions.

讨论了锌与硫酸反应的实质过程，提出了超电势是控制此类反应发生程度的主要因素

This group breaks down into carbon dioxide, water, sulfuric acid and oxygen.

这组分解成二氧化碳，水，硫酸和氧气。

The effects of quantity of chloride,flowrate of oxygen,concentration of sulfuric acid and temperature were discussed as leaching variables.

考察和比较了氯化物用量、氧气流量、硫酸浓度、温度等因素对铜和镍浸出的影响，并讨论了其原因。

Extracting conditions such as temperature,the concentration of sulfuric acid are optimized.Test results show that leaching rate of vanadium pentoxide is up to 92% at the temperature of 90 ℃,with mass ratio of l...

实验结果表明，在MnO2用量3%、温度90℃、液固比2∶1、反应时间9 h、硫酸的浓度为20%、搅拌速度为1 500 r/m in的优化条件下，五氧化二钒浸出率为92%，比钠盐焙烧工艺高出10%以上，环境污染和能源消耗也得到有效控制。

Test results show that leaching rate of vanadium pentoxide is up to 92% at the temperature of 90℃, with mass ratio of liquid and solid being 2:1, usage of manganese dioxide being 3%, with concentration of sulfuric acid of 20%, and mixing speed at 1500 r/min. It is about 10% higher than roasting. Environmental pollution and energy consumption can also be effectively controlled.

实验结果表明，在MnO2用量3%、温度90℃、液固比2：1、反应时间9 h、硫酸的浓度为20%、搅拌速度为1500 r/min的优化条件下，五氧化二钒浸出率为92%，比钠盐焙烧工艺高出10%以上，环境污染和能源消耗也得到有效控制。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。