Determination of Fluoride and Chloride in Alumina

Alumina has many good properties, and its applications are extremely wide, such as biomedical engineering materials, fine ceramics, alumina fiber high-strength and heat-resistant products, special refractory materials, catalysts and carriers, transparent alumina ceramics, ah flame retardants, etc. Inorganic cations are often used in the determination of impurity elements in alumina, and most of the methods used are spectra. In this paper, a simple sample pretreatment and ion chromatography are used to determine fluoride and chloride in aluminum cyanide. It has been applied to the analysis of practical samples with good results.