论文部分内容阅读
关于石膏中三氧化硫的测定,目前大多数采用硫酸钡重量法与分离干扰元素的容量法。这两种方法,劳动强度大,效率低。为了克服这些缺点,我们进行了不分离的EDTA间接测定三氧化硫的试验。其方法有两种。
About gypsum in the determination of sulfur trioxide, the current majority of barium sulfate gravimetric method and the separation of interference element volume method. Both of these methods are labor-intensive and inefficient. In order to overcome these shortcomings, we conducted a nondeterministic EDTA indirect determination of sulfur trioxide. There are two ways.