1.relating to, containing, or derived from the acid group SO2OH
1.The abnormal structure usually appears at the surface layer of nodular iron castings produced by furan-sulfonic acid cured sand mold.
本实验研究查明，当用甲苯磺酸作催化剂的呋喃树脂自硬砂生产稀土镁球铁件时，通常在其铸件表层出现异常组织。
2.The results showed that the catalysis of amino sulfonic acid was more effective than sulfuric acid on the esterification reaction.
结果表明，氨基磺酸是一种比硫酸更有效的酯化反应催化剂。
3.The invention relates to sulfonic acid rare earth catalyst used for preparing polyisoprene and preparation method and application thereof.
本发明涉及用于制备聚异戊二烯的磺酸稀土催化剂及制法和应用。
4.The adhesive composition contains a naphthalene sulfonic acid-formaldehyde condensation product and a water-soluble polymer material.
胶粘剂的组成包含了萘磺酸甲醛缩合物和水溶性高分子材料。
5.The invention discloses petroleum sulfonic acid and salt thereof as well as a preparation method and application thereof.
本发明公开了一种石油磺酸和其盐以及它们的制备方法与应用。
6.Additionally, the reverse reaction of sulphonation and hydrolysis of the aromatic sulfonic acidic resin is prevented.
而且避免了芳香族磺酸树脂的磺化水解逆反应。
7.IR spectrum indicates that the epoxy group is retained and hydrophilic sulfonic group is introduced into the copolymer AMPS-EP.
由红外光谱表征，AMPS-EP共聚物中保存了环氧树脂的环氧基，同时引入了亲水性的磺酸基。
8.Several important effects resulting from sulfonic group are enumerated. Future directions and existing problems are discussed.
着重分析了磺酸基团的几种效应，讨论了目前存在的问题和未来发展方向。
9.Several methods of introducing sulfonic groups via copolymerization with sulfonated aniline are elaborated in detail.
总结了由磺化苯胺单体的共聚合引入磺酸基团的几种方法。
10.In this paper, amino sulfonic acid and allantoin are respectively synthesized by microwave irradiation and conventional heating.
用常规加热和微波加热两种方法合成了尿素的两种深加工产品—氨基磺酸和尿囊素。