常見例句In the presence of aminosulfonic acid catalyst,lactic acid reacted with n butyl alcohol to form n butyl lactate. 以氨基磺酸為催化劑,實(shí)現(xiàn)了乳酸與正丁醇反應(yīng)合成乳酸正丁酯。Tri n butyl citricate(TBC)was synthesized with zeolite supported ZrO 2 Dy 2O 3/SO 4 2 solid super acids(ZDSH) as catalysts. 用固體超強(qiáng)酸催化劑(ZrO2?Dy2O3/SO42 -?沸石分子篩) 催化合成檸檬酸三丁酯(TBC) 。In this paper, the research progress on the exposure,metabolism,toxicity and endocrine disruptingeffects of di n butyl phthalate were reviewed. 鄰苯甲二酸二丁酯;;內(nèi)分泌系統(tǒng);;成形劑;;毒性作用;;塑料;;職業(yè);;環(huán)境;;Three plasticizers were used: namely dioctyl phthalate (DOP), di n butyl phthalate (DBP) and di(-2-ethyl-hexyl)sebacate(DOS). 研究中采用的增塑劑為鄰苯二甲酸二辛酯 (DOP)、鄰苯二甲酸二正丁酯 (DBP)和癸二酸二辛酯 (DOS)。The influence facts upon adhesive strength,such as hardening agent content, n butyl acrylate content,synthesis condition were discussed. 考察了固化劑含量、預(yù)固化及預(yù)聚合時(shí)間、丙烯酸丁酯含量以及引發(fā)劑含量對膠粘劑力學(xué)強(qiáng)度的影響。N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization. 以鄰氯苯甲酸和對乙氧基苯胺為原料,經(jīng)過胺的苯基化、二芳胺的環(huán)化、N-烷基化、硫代化反應(yīng)合成了N-丁基-2-乙氧基硫代吖啶酮。 返回 n-butyl