Sodium pyrophosphate, also known as tetrasodium diphosphate or tetrasodium phosphate, can be divided into anhydrous and decahydrate substances. Decahydrate is colorless or white crystalline or crystalline powder, anhydrous is white powder, soluble in water, insoluble in ethanol and other organic solvents. Main usesThe electroplating industry is used to prepare electroplating solutions, which can form complexes with iron. Wool spinning industry is used as a wool degreaser and bleaching agent. The papermaking industry is used for bleaching paper and plant fibers. The printing and dyeing industry is used as an auxiliary agent for printing, dyeing, and fine bleaching. The daily chemical industry is used as a toothpaste additive, which can form colloids with calcium hydrogen phosphate and have a stabilizing effect. It can also be used to synthesize detergents and produce products such as shampoo. In addition to its ability to soften water, sodium pyrophosphate can also dissolve insoluble sa...