利用二硫化碳与碱醇液的特性反应，先使清防蜡剂中的二硫化碳与ＫＯＨ乙醇溶液反应生成黄原酸盐，再用碘量法滴定黄原酸盐，在空白试样测定中以乙醇代替碱乙醇溶液。此法克服了将碘量法直接用于油基清防蜡剂中二硫化碳的定量测定时油水不互溶、空白测定结果不准确的困难。颜色较深的清防蜡剂与碱醇液反应完全后可用水适当稀降，以方便滴定终点的判定。 The use of carbon disulfide and alkali alcohol solution of the characteristics of the reaction, the first anti-wax paraffin and KOH ethanol solution reaction of xanthate, and then iodometric titration xanthate, blank samples in the test instead of ethanol Alkaline ethanol solution. This method overcomes the iodine amount method is directly used in oil-based paraffin wax in the quantitative determination of carbon disulfide oil and water are immiscible, the blank determination of the inaccurate results. Dark color of the anti-wax and alkaline alcohol solution after the reaction can be properly diluted with water to facilitate the determination of the titration end.