We provide it with competitive price and good quality. Properties: white crystalline powder. The relative density is 2.534 Melting point: 880 °C Solubility:can be solubled in water, solubility in 100g water is 6.23g at 20 °C , the solution is alkaline; not soluble in alcohol.It is widely used in dyeing and printing fine, soft water agent Sodium pyrophosphate anhydrous