The influence of CaF 2,ZnO, MgO and the proportion on the formation of calcium sulphosilicate in the simple mineral and in belite-sulphoaluminate cement clinker was studied.

Determination of SeO_2 in industrial selenium dioxide by sodium hyposulfite titration;

This paper mainly studied on the influence of the deoxidant(sodium hyposulfite) upon Xanthan gum thermal stability,and the results showed that the viscosity reduction degree is decreased and the viscosity stability of Xanthan gum solution can be obviously improved which makes thermal stability enhance by 1.

After comparison,sodium hyposulfite is the preferred absorbent,which the resultant has no influence on the environment with sodium hyposulfite over absorbed dose.

Study on metabolic mechanisms of sodium thiosulfate by Thiobacillus Ferrooxidans and Thiobacillus Thiooxidans;

Study on preparatin of sodium thiosulfate by sulfur black wastewater

According to the reducibility of sodium thiosulfate,the interference of sulfite is eliminated by formaldehyde and sodium thiosulfate is determined by indirect iodimetry with addition of excessive iodine.