The remaining oil is treated with an alkali to remove free fatty acids.
剩下的油在碱的作用下除去自由的脂肪酸。
2
Sodium hypochlorite solution has been prepared by chlorine and sodium hydroxide, the content of freealkali should be controlled at about 10.8%, and the effective chlorine at about 8.0%.
以氯气和氢氧化钠为原料制备次氯酸钠溶液，控制其中游离碱含量在10.8%左右，有效氯在8.0%左右。
3
The preparation of tetramisole freealkali was studied with anti addition method.