The distilled water was added to the sulfonation liquid to obtain p-toluenesulfonic acid crystal.
将蒸馏水加入磺化液中，得到对甲苯磺酸结晶。
A new antioxidant dithiodinglycol distearictate was synthesized starting from thiodiglycol and stearic acid using p-toluenesulfonic acid as catalyst and xylene as water carrier.
以硫代二甘醇和硬脂酸为原料，选用对甲苯磺酸为催化剂，二甲苯为带水剂，合成了新型抗氧剂硫代二甘醇二硬脂酸酯。
The main factors affecting the reaction such as ratio of reactants, the catalyst (p toluenesulfonic acid), temperature and solvent were discussed.
探讨了硬脂酰氯和单宁酸的量比、催化剂对甲苯磺酸的用量、反应温度和溶剂等对合成的影响。
The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids, such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid.
研究了氨基磺酸、氟硼酸及对甲苯磺酸的助催化作用，并探讨了其催化机理。
The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids, such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid.
研究了氨基磺酸、氟硼酸及对甲苯磺酸的助催化作用，并探讨了其催化机理。
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