From different ways of experiment it shows that the eonductcmetry can easily, quickly and accurately determine the quantities of free vitriol and sulphonating degree.

• 经过透析实验和采用不同碱式滴定剂进行非水滴定实验表明：电导滴定能简便、快速、准确地测出自由硫酸含量和磺化度。