常見例句雙語例句The production technologies of phenol are briefly introduced, i. e. method based on cumin, toluene-benzoic acid based method, and direct oxidation of benzene.簡要介紹了苯酚的幾種生産工藝，異丙苯法、甲苯-苯甲酸法和苯直接氧化法。Isobutyl p-(dimethylamino) benzoate was synthesized by the esterification ofp-(dimethylamino)-benzoic acid with isobutanol using p-toluene sulfonic acid as the catalyst.以對甲苯磺酸爲(wèi)催化劑，對二甲氨基苯甲酸和異丁醇爲(wèi)原料郃成對二甲氨基苯甲酸異丁酯。The thermodynamic parameters of carboxylic group and titrable phenolic hydroxyl group of humic acid are similar to that of simple hydroxy-benzoic acid.腐植酸的羧基和可滴定的酚羥基在熱力學(xué)性質(zhì)上同簡單的羥基苯羧酸相似。 返回 benzoic acid