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Details for China STPP

STPP 7758-29-4

Category :

Inorganic chemicals

STPP
CAS NO : 7758-29-4
EC NO : 231-838-7
MF : Na5P3O10
MW : 367.86413
Product description :
Chemical 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.
Guaranteed Technical Specifications (GB9983-88) :
Indexes
Industrial Grade
Food Grade
Assay Na5P3O10 % ≥
94.0
94.0
P2O5 % ≥
57.0
57.0
Water Insoluble Matter %≤
0.15
0.05
Iron(Fe) %≤
0.01
0.01
PH value (1% water solution)
9.2-10.0
9.5-10.0
Heavy Metal (as Pb) %≤
 
0.001
Arsenic (As) %≤
 
0.0003
Fluoride (F) %≤
 
0.003
Particle Size
Through 16 mesh sieve %≥
Through 35 mesh sieve %≥
Trough 100 mesh sieve %≥
95
90
40
95
90
40
Whiteness %≥
90
90
Usage : 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.
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.
Synonyms : pentasodium triphosphate;Pentasodium Tripolyphosphate;Sodium Phosphate Tripoly;STPP;Triphosphoric acid, pentasodium salt;Pent-sodium Phosphate;Sodium triphosphate;Sodium Tripolyphos;sodium phosphate (3:1);
Molecular Structure : STPP 7758-29-4