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- The method was based on the inhibition effect of iodine on the nitrite catalyzed oxidation of cresol red by potassium bromate catalyzed by nitrite in dolute sulfuric acid medium. 研究了在稀硫酸介质中,痕量碘离子对亚硝酸根催化溴酸钾氧化甲酚红的阻抑作用,建立了测定痕量碘离子的阻抑动力学光度分析的新方法。
- A Study of Extraction Behaviour of Ce.Nd.Dy.Er.By Primary Amine N1923 In Sulfuric Acid Medium 在硫酸溶液中伯胺N_(1923)对铈、钕、镝铒萃取行为的初步探讨
- Most sulfuric acid is made by the contact process. 大多数的硫酸是用接触法制造的。
- sulfuric acid medium 硫酸介质
- Chlorination is carried out with Nhaloamines and sulfuric acid. 氯化是用N-卤胺和硫酸。
- Keywords rare earth carbonate;crystallinic precipitation;calcinating ore;sulfuric acid media; 碳酸稀土;晶型沉淀;焙烧矿;硫酸介质;
- Corrosively medium for chemical production such as sodium hydrate,caustic soda,sulfuric acid,nitric acid,acetic acid,fatty acid. 化工生产品中的腐蚀性物料，如：烧碱、纯碱、浓稀硫酸、碳酸、醋酸等。
- A substance, such as sulfuric acid, that removes water. 脱水物质脱去水分的一种物质，如硫酸
- A corrosive solution of sulfur trioxide in sulfuric acid. 发烟硫酸含三氧化硫酸的一种腐蚀性溶液
- Conclusion:The sulfuric acid anthrone method is reasonable. 结论:该法可作为桑叶中多糖的含量测定方法。
- The nitrile (II) (28 g) was mixed with 26 ml of concentrated sulfuric acid. 将28克腈化物(II)与26毫升浓硫酸进行混合。
- The decolour reaction of HCPCF with IO?-?3 in acid medium is reported. 在酸性介质中HCPCF与IO-3反应;IO-3将HCPCF的四氮基转化为无色氧化型而使红色逐渐减褪.
- In mild acid medium, the electrode can electrocatalyze the oxidation of . 在弱酸性介质中 ,电极对亚硝酸根的氧化有电催化作用。
- The nitrile (II) (28 g) was mixed with 26 ml.of concentrated sulfuric acid. 将28克腈化物(II)与26毫升浓硫酸进行混合。
- The extraction of tyrosine from hydrochloric acid medium was studied. 用溶剂萃取法从盐酸介质中萃取酪氨酸。
- Muriatic Acid and cocaine are natural ingredients as well. So is sulfuric acid. 盐酸和古柯碱都也是天然成分，所以硫酸也是...
- Two processes with concentrated sulfuric acid recently appeared are reviewed. 对新近出现的两个浓硫酸水解工艺进行述评。
- Estazolam reacts with sulfuric acid to form an intense fluorescent substance. 本文提出了硫酸颜色反应用于艾司唑仑的荧光测定新方法。
- The reaction of magenta and nitrite in sulfuric acid m ed ium was studied. 据此建立了一个简单、快速、选择性好的测定亚硝酸盐氮的新方法。
- Sulfuric acid is main catalyst for the synthesis of carboxylic acid esters. 羧酸酯的合成主要用硫酸作催化剂，但这种催化剂有许多缺点。
