Sodium Tripolyphosphate
Specification of Sodium Tripolyphosphate
SYNONYM: STPP
Molecular formula: Na5P3O10
Molecular weight.: 368
CAS NO.:7758-29-4
SPECIFICATIONS:
|
CONTENT AS Na5P3O10 % |
94% MIN. |
|
CONTENT AS P2O5 % |
57.5%MIN. |
|
PH VALUE (1% SOLUTION) |
9.2-10.0 |
|
WATER INSOLUBLE % |
0.13 MAX. |
|
IRON AS Fe % |
0.006 MAX. |
|
WHITENESS % |
90.0 MIN. |
|
BULK DENSITY (g/cm3) |
0.46-0.51 |
|
PHASE I % |
12-30 |
Application: Used as one of the main auxiliaries for synthetic detergent,
synergist for soap; water softener, tanning agent for leather making, auxiliary
for dyeing; As an effective dispersion agent for suspensions of coatings,
kaolin, magnesium oxide, calcium carbonate and drilling mud etc
