Properties: Colorless, transparent and syrupy liquid, melting Point at 42.3 ℃. It mixes with water in all proportions, producing an amount of heat. It loses water and converts to pyrophosphate and metaphosphoric acid when being high-temperature heated.
Uses: Mainly used for phosphate industry, electroplating and chemical polishing, pharmaceutics industry, printing industry, metallurgy industry, paint industry etc.