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- Chemical cleaning of denitration and sulphuric acid concentration plant 甲苯二异氰酸酯生产废酸浓缩装置的化学清洗
- sulphuric acid concentration 硫酸浓度
- We make superphosphate by reacting rock phosphate with sulphuric acid. 我们使磷酸盐岩同硫酸发生化学反应制造过磷酸钙。
- Please treat the material with sulphuric acid. 请用硫酸处理这种材料。
- A sulphuric acid spill polluted the East River. 硫酸泄漏污染了东江。
- The sulphuric acid has eaten into these steel pipes. 硫酸已腐蚀了这些钢管。
- We make superphosphate by react rock phosphate with sulphuric acid. 我们使磷酸盐岩同硫酸发生化学反应制造过磷酸钙。
- The pieces were then thrown into a barrel of sulphuric acid. 随后这些碎片会被扔进一个硫酸桶里。
- Her hand came into contact with sulphuric acid and was burned. 她的手接触了硫酸，烧伤了。
- This paper introduces a high-speed analysis method for the mass concentration of free sulphuric acid in the hydro-phosphoric acid material liquid and its principle. 介绍了湿法磷酸料浆液相中游离硫酸质量浓度快速分析法及其原理。
- Hydrogen is a product of the reaction between zinc and sulphuric acid. 氢是锌和硫酸反应的生成物。
- Add 5 ml concentrated sulphuric acid to 100 ml water sample and shake well. 把大约5亳升的浓硫酸加进100亳升的水样本中,混匀。
- CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF ASH. 硫酸和发烟硫酸的化学分析。熔烧残留物的测定。
- Add 5 ml.concentrated sulphuric acid to 100 ml.water sample and shake well. 把大约5亳升的浓硫酸加进100亳升的水样本中,混匀。
- His prototype used dilute sulphuric acid and operated at room temperature. 他当时的做法用的是稀释的硫酸，而且是在室温下进行操作。
- Introduce Na2CO3 as the activating agent and sulphuric acid as the lixiviant. 选用Na_2CO_3为活化剂,确定了合理的活化条件。
- Methods: Using the turbidity method and analyzing the acetic acid concentration of both phases at equilibrium. 方法 :用浑浊法测定体系的分层曲线 ,自动电位滴定仪测定平衡两相中醋酸的含量 ,通过绘制出的三元相图 ,筛选萃取剂。
- Chromeplating liuthium is mainly used for chromic acid and sulphuric acid. 镀铬用的电解液次给是铬酸酐和硫酸。
- Under this condition which shortens the lysis time by changing acid concentration and leads to the fast measurement. 在此条件下改变酸的浓度来缩短水解时间，达到快速测定的目的。
- In the first step KHSO4 is formed from KCl by acidulation using sulphuric acid. 从氯化钾中获取硫酸钾的第一步是通过使用硫酸进行酸化处理。
