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- hot concentrated sulfuric acid 高温浓硫酸
- 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。
- 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。
- 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)。
- The concentrated sulfuric acid cleanup method. and AOAC official method for detecting BHC in rice were compared by using 14C-BHC as a tracer. 利用~(14)C-六六六;验证浓硫酸净化法与国际公认的美国化学家协会方法检测稻米中六六六农药残留量的结果表明;前者平均回收率达90.;0%25;平均相对标准偏差为8
- The results showed that the untreated PTW were corroded in acid solution at pH 2.0 and dissolved by boiling concentrated sulfuric acid. 未处理的PTW在pH=2.;0的酸性溶液中开始被腐蚀;并能被煮沸的浓硫酸所溶解;
- Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst. 以工业废氢溴酸(48%25)为原料,在浓硫酸存在下,与正辛醇进行反应合成1-溴辛烷。
- Preparation of methyl acetate from methanol and acetic acid by reactive rectification was investigated with concentrated sulfuric acid as catalyst. 在中试反应精馏塔中以浓硫酸为催化剂进行了醋酸与甲醇反应制备醋酸甲酯的试验。
- Ethyl lactate was synthesized by transesterification of D, L-lactide with ethanol utilizing concentrated sulfuric acid as catalyst. 研究了D,L-丙交酯在浓硫酸催化作用下,与乙醇进行酯交换反应合成乳酸乙酯。
- To study the main purpose about the utilization of renewable materials, the concentrated sulfuric acid hydrolysis of common cordgrass was studied. 探讨以资源综合利用为目的，对大米草的浓硫酸水解进行了研究。
- Bromocyclohexane was synthesized from potassium bromide and cyclohexanol in the prensence of concentrated sulfuric acid in water. 以溴化钾和环己醇为原料,在浓硫酸存在条件下,以水为溶剂合成溴代环己烷。
- To improve the solubility of quercetin in water,quercetin-7-sulphate sodium was synthesized with quercetin and concentrated sulfuric acid. 为提高槲皮素的水溶性,以槲皮素和浓硫酸为原料进行磺化反应制备槲皮素-7-硫酸酯钠。
- Aqua mesophase pitch (AMP) was prepared through oxidation of coal tar pitch with mixtures of concentrated sulfuric acid and nitric acid. 以煤焦油沥青为原料,经过氧化、碱溶制备出水性中间相沥青,着重考察了制备条件对水性中间相沥青在水相中凝胶化的影响。
- 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；
- Diacetoneacrylamide of 99.5% was synthesized with acetone and acrylonitrile as raw material and concentrated sulfuric acid as catalyst. 以丙酮和丙烯腈为原料;浓硫酸为催化剂;合成了纯度为99.;5%25的双丙酮丙烯酰胺。
- Chlorotrimethylsilane was prepared, with trimethylsilyl ether and hydrochloride as raw materials, concentrated sulfuric acid as catalyst. 以三甲基硅醚和氯化氢气体为原料,浓硫酸为催化剂合成了三甲基氯硅烷。
- The test solution is placed in a test tube, and a small amount of alpha-naphthol added; concentrated sulfuric acid is then trickled slowly down the side of the tube. 在试管中放入待检测的溶液，加入少量的萘酚，接着把浓硫酸沿着试管壁缓缓滴入试管。
- The synthesis of octadecyl alcohol sulfate by chlorosulfonine acid or concentrated sulfuric acid as the sulfating agent reacting with octadecyl alcohol is studied in this paper. 研究了分别采用氯磺酸和浓硫酸为硫酸化剂，与十八醇反应合成十八醇硫酸酯（盐）的方法，通过正交实验确定了工艺条件，并对影响合成反应的主要因素进行了探讨。
- Expandable flexible graphite(EFG) sheets can be obtained in case of concentrated sulfuric acid or concentrated nitric acid used as intercalating agent alone. 单独用浓硝酸或浓硫酸在常温下浸泡柔性石墨,可得到可膨胀柔性石墨,它在合适的膨胀温度下处理,可制成外形完整的膨胀柔性石墨块。
