Sodium hexametaphosphate is used as water softener for cooling water treatment in power stations, locomotives, boilers and fertilizer plants, as an auxiliary for detergents, as a control or anti-corrosion agent, as a cement hardening accelerator, as a streptomycin purification agent, in the fiber industry, Cleaning agent for bleaching and dyeing industry. It is used as a flotation agent in the mineral processing industry. In medicine, it is used to prevent rust of drilling pipes and to control the viscosity of the swelled slurry during oil drilling. It also has certain uses in textile printing and dyeing, tanning, papermaking, color film, soil analysis, radiochemistry, analytical chemistry and other departments.
Trisodium phosphate is mainly used in synthetic detergents as additives, soap synergists and to prevent bar soap grease and blooming. It has a strong emulsifying effect on lubricating oils and fats, and can be used to adjust the pH value of buffer soaps, water softeners for industrial water, leather pretanning agents, dyeing auxiliaries, paints, kaolin, magnesium oxide, calcium carbonate and other industries. It is used as a dispersant in the configuration of suspensions, as a dispersant in drilling mud, and as an anti-oil contamination agent in the paper industry.
