STPP : Light
The lightweight STPP is typically used in the dry mixing-process.
By its high capacity to absorb liquids and active substances, it allows a better granulated detergent with a relatively low apparent density.
It could be also added in post-addition in the atomisation process to improve the density of the finished product or even to increase the capacity of the installation.
Standard specifications of light STPP
| Designations | Units | Specifications |
|
(P2O5) content |
% | 56 ± 0.5 |
|
STPP content |
% | 94 mini |
|
Water content |
% | 1 maxi |
|
Water insoluble materials |
% | 0.1 maxi |
|
Particle size : |
% |
10 maxi 15 maxi |
|
pH (1% solution) |
--- | 9 - 10 |
|
Whiteness |
--- | L = 90 mini (Hunter L.a.b) |
|
Paulte density |
Kg/l | 0.3 – 0.44 |
|
Trace metals : |
ppm |
5 maxi 5 maxi 5 maxi 5 maxi 1 maxi 5 maxi 1 maxi 1 maxi 5 maxi 50 maxi 250 maxi |