磺酰胺

And then we found that ytterbium trifluoromethethanesulfonate is a powerful catalyst for the reaction of amine and ethyl acetate.

然后研究了三氟甲磺酸镱催化的胺和乙酸乙酯的反应，从而合成了乙酰苯胺类化合物。

It was obtained with ethylenediamine and ethenesulfonic sodium as primary material through addition.

它是一种易降解的新型Gemini表面活性剂－N， N'-双癸酰基乙二胺二乙磺酸钠的中间体。

The existing form of boron on the rubbing surfaces is sodium metaborate which can be dissolved in water. The hydration water of so- dium metaborate can reduce the aiitiwear function on Four-ball Machine but enhance its antiwear ability on Timken Tester. The study also revealed that sulfonate dispersant Can reduce the antiwear function of sodium metaborate while succinimide dispersant enhance its antiwear ability.

结果表明，含偏硼酸钠的白油能在摩擦表面形成含偏硼酸钠的表面膜而具有较好的抗磨性，硼在摩擦表面膜中以偏硼酸钠的形式存在，钠和钙的石油磺酸盐型分散剂会降低偏硼酸钠的抗磨性，而丁二酰亚胺类分散剂则能提高其抗磨性。

Using 2-bromo-ethanesulfonic acid sodium salt ,α,ω- binary primary amine and dodecanoic acid as the main raw materials, drawing support from two-step synthesis of experiments—Alkylated reaction and Schotten-Baumann acylation, A series of LAS(12-s-12) gemini surfactants were synthesized.

并以2-溴乙基磺酸钠、α，ω-二元伯胺、月桂酸等为主要原料，借助胺基的烷基化和Schotten-Baumann酰基化反应制备了α，ω-烷撑-双钠盐LAS(12-s-12)表面活性剂，联结基团为亚甲基—(CH2)s—(S=2，4，6，8，12)，取得以下进展

Keywords acylhydrazone;sulfamic acid;N-aminophthalimide;fine chemical intermediate

酰腙； 氨基磺酸； N-氨基邻苯二甲酰亚胺；精细化工中间体

Make comprison of SGS concerning lathering power and foam stability. Test shows that N,N＇-Difatty acid acyl hexamethylene-diamine-ethylene sulfonate（SGS-12）has better lathering performance and foam stability.

对SGS系列双子表面活性剂的起泡性能和稳泡性能进行了比较，其中N，N＇-双月桂酰基己二胺二乙基磺酸钠（即SGS-12）具有更好的起泡性和稳泡性。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。