tetra potassium pyrophosphate(TKPP)

Potassium pyrophosphate 98%min Molecular formular:K4P2O7 Molecular weight:330.35 Physichennucal properties: White powder or granular.Relative density is 2.534.Melting point is 1109°C.water soluble in ethlalcohol.The water solution of it assumes alkalinity.When 25°C,solubility of 100 gram water is 187 gram.The PH value of the water solution is 10.2 whenn the concentration of which is 1%.Potassium pyrophosphate has all the properties of the other condensed phosphates. apperancewhite powder or granularTotal K4P2O7 content98%minIron(as Fe)0.03%maxmatter insoluble of water0.1%maxPh value(1% water solution)10-10.7OrthophosphateIn conformity to requirementapperance white powder orgranularmain content98minP2O553%min(N)nitrogen21%minwater soluble0.1%moisture0.15%PH Value in 1% solution7.8-8.2 Uses: It is chilefly used,instead of sodium cyanide,in noncyanide electroplating as complex.Also used as pretreatment agent in electrodetergent,or as additive to all kinds of detergent.Besides,it can also be used as clay dispersing agent in china-ware industry and as dispersing agent and buffer in pigment and dyestuff. packing: in 25kg/50kg/50lb plastic woven bag or paper bag .