钠Tripolyphosphate

Sodium Tripolyphosphate(STPP)H.S.Code:2835 3100Chemical formula:Na5P3O10 Molecular weight: 367.86 Quality: White powder, surface density 0.35-0.9g/cm3,melting point 622 . Dissolve in water easily, the aqueous solution is alkalinity. A kind of inorgantic chemical surface-active agent, with two kinds of forms:Na5P3O10-i and Na5P3O10(B). Two forms have the same chemical property. Technical Specifications (GB9983-88) : IndexesIndustrial GradeFood GradeAssay Na5P3O10 % ≥ 94.094.0P2O5 % ≥ 57.057.0Water Insoluble Matter %≤ 0.150.05Iron(Fe) %≤ 0.010.01PH value (1% water solution) 9.2-10.09.5-10.0Heavy Metal (as Pb) %≤ 0.001Arsenic (As) %≤ 0.0003Fluoride (F) %≤ 0.003Particle Size Through 16 mesh sieve %≥ 9595Through 35 mesh sieve %≥ 9090Trough 100 mesh sieve %≥ 4040Whiteness %≥ 9090Usage: As chemical additives for making synthetic detergents; synergist for soaps; soft-water agent for industrial water; textile dyeing auxiliaries; and prevent greasy dirt in papermaking industry. Used as quality improver ,water retentive agent in the process of meat product,fruit juice drinks,beer,dairy products etc. tender the meat and enhance glutinosity of ham and canned foods ,increase weight and keep fresh of seafoods,prevent protein from curds and sedimentation of dairy products ,prevent drinks from oxidation ,change colour ,decomposition of Vitamin C ,adjust the quality and intensify function of soybean albumen ,soften the scarfskin of horsebean and fruit vegetable,also used as softener and densifier agent . Packing and storage: In 25Kg or 50 Kg or 1000 Kg net WPP/PE bags. It must be prevented from Dampness and water. Don't store it in the open air.