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- Keywords sodium sulphonate lignin;phenolize;modification;（3 methyl phenol） sulphuric acid method; 木质素磺酸钠;酚化;改性;间甲酚-硫酸法;
- 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。
- 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。
- 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。
- 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。
- It is also present in an aqueous solution of nitrourea or a sulphuric acid solution of nitrourea. 它也存在于硝基脲的水溶液或硝基脲的硫酸溶液中。
- The sulphuric acid eats into those parts of the metal that remain exposed after the wax coating has been applied. 没有封蜡覆盖的那部分金属易受硫酸腐蚀。
- Abstract: Methods and main equipment of waste heat recovery in sulphur-buring sulphuric acid plants are described. 文摘:系统阐述了硫磺制酸生产过程中的废热回收方法、主要设备和提高热回收率的措施。
- The sulphuric acid ate into the parts of the metal where the coat of paint had peeled. 硫酸腐蚀了这块金属上涂层剥落的地方。
