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- sulfuric anhydride 硫酸酐
- Sulfur can be used to make gunpowder. 硫磺可以用来制造火药。
- sulfur anhydride [化] 三氧化硫
- Sulfonated EPDM ionomers(S-EPDM) were prepared with concentrated sulfuric acid and acetic anhydride. 用浓硫酸和醋酸酐与三元乙丙橡胶 (EPDM)反应制备了磺化三元乙丙橡胶离聚物 (S -EPDM)。
- Most sulfuric acid is made by the contact process. 大多数的硫酸是用接触法制造的。
- The sulfonation reaction efficiency would reach a peak when the mole rate of acetic anhydride and concentrated sulfuric acid was 1.5. 磺化剂中乙酸酐与浓硫酸的摩尔比为1.;5:1时，平均磺化效率达到了最高；
- A titrimetric method has been developed for rapid determination of the concentration of chromic anhydride and sulfuric acid in ABS roughing solution. 介绍了一种快速测定ABS粗化液中铬酐与硫酸浓度的方法。
- Iron and steel with too much sulfur are red-short. 含硫过多的铁和钢都是热脆性的。
- Acids used in pickling can include sulfuric. 酸浸渍中用的酸有硫酸。
- This nitration reaction was innovated by using sulfuric acid as the proton donor instead of acetic acid and acetic anhydride, and solvent n-octanol could ... 硝化反应的创新处是用硫酸代替醋酸和醋酐,作为溶剂的正辛醇可不经处理循环使用。
- Sulfur is an essential nutrient for plants. 硫是植物的一种重要的营养元素。
- The synthetic processes of phthalic anhydride diglycol ester using sulfuric acid and methyl benzene sulfonic acid as catalysts,respectively,were investigated. 讨论了邻苯二甲酸酐一缩二乙二醇酯的合成工艺,分别以硫酸和对甲基苯磺酸为催化剂合成邻苯二甲酸酐一缩二乙二醇酯。
- To eliminate sulfur from(petroleum, for example). 脱硫（例如，从石油中）除硫
- Influence of pH on Yield of DPT Prepared Without Acetic Anhydride. 非醋酐法合成DPT与pH值的关系
- The activity of the first hydrogen ion is similar to those from sulfuric acid and can be used to analyze the concentration of chromic anhydride and sulfuric acid. 第一个氢离子的活跃程度与硫酸释放出来的氢离子相近,可用来分析铬酐与硫酸的总浓度;第二个氢离子用来分析铬酐的浓度。
- Subject to control the chemicals acetic anhydride, ephedrine etc. . 受管制化学品乙酸酐、麻黄碱等.
- The unionized sulfur species is ??in water. 溶于水中非电离形式的硫即?妗?/UK>
- Hexahydro-4-methylphthalic anhydride, mixture of cis an... 询价 六氢-4-甲基邻苯二甲酸酐；
- Isn't sulfur important in chlorophyll formation? 硫对叶绿素的形成很重要，对吗?
- A sulfide compound containing at least two sulfur atoms per molecule. 多硫化物每个分子中至少含有两个硫原子的一种硫化物
