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- It is produced by the reduction of fuchsin by sulfurous acid, and is oxidized by aldehydes and ketones, restoring the magenta color of the fuchsin. 配法是用亚硫酸使品红溶液还原,若有醛酮类存在时便使之氧化而重新呈现品红本身的洋红色。
- The cooking liquor, called acid, is thus a solution of calcium which contains an excess of sulfurous acid. 蒸煮所用酸液是一种含有过量硫酸的酸性亚硫酸钙的溶液。
- The virulent matter such as the sulfurous acid and so on in fog is harmful to people's health, outside agriculture and metal material. 雾中含有亚硫酸等有毒物质,有害人们身体健康,有害室外农业和有损外露金属材料,属气象灾害。
- Most sulfuric acid is made by the contact process. 大多数的硫酸是用接触法制造的。
- The active cooking chemicals in the sulfite process are sulfur dioxide, sulfurous acid, and calcium bisulfite. 亚硫酸盐法制浆过程中活性化学物质是二氧化硫、硫酸以及酸性亚硫酸钙。
- 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
- The paper introduces the reaction mechanism of oxidating sulfurous acid calcium to gypsum and some factors to influence the reaction process. 介绍了亚硫酸钙氧化为石膏的反应机理及影响反应过程的某些因素。
- Chlorination is carried out with Nhaloamines and sulfuric acid. 氯化是用N-卤胺和硫酸。
- The industrial advance was reviewed on the technology of decompositing phosphogypsum for the production of sulfur acid and cement all round the world. 本文综述了国内外利用磷石膏生产硫酸和水泥的工业技术进展。
- 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
- 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 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。
- 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...
- The basic situation about 300 kt/a sulfuric acid plant by sulfur burning in Tianhu Chemical (Co.,) Ltd. 介绍江川天湖化工有限公司300kt/a硫磺制酸装置的基本情况;
- 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。
- The masonry construction outlines for sulfur burner of 250 kt/a sulfuric acid plant based on sulfur are summarized. 总结了250kt/a硫磺制酸装置焚硫炉的筑炉施工要点,供同仁参考。
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