EN
AR
NL
HI
JA
KO
RU
TL
IW
ID
LV
LT
VI
TH
TR
AF
MS
BN
EO
LA
MN
SO
Overview
Inquiry
Related Products
Factory Industrial High -Efficiency Soft Water Sodium Tripolyphosphate STPP CAS: 7758-29-4
Product Description
Sodium Tripolyphosphate, or STPP, is a white powder or granule that dissolves in water. It is a type of phosphate and is often used in cleaning products and food processing. It helps soften water and bind other substances together.
Product Parameters
| Sodium Tripolyphosphate / STPP | ||
| Indexes | Industrial Grade | Food Grade |
| Assay Na5P3O10 % ≥ | 94 | 94 |
| P2O5 % ≥ | 57 | 57 |
| 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 |
| As %≤ | -- | 0.0003 |
| Fluoride (F) %≤ | -- | 0.003 |
| Particle Size Through 16 mesh sieve %≥ Through 35 mesh sieve %≥ Trough 100 mesh sieve %≥ |
95.0 90.0 40.0 |
95.0 90.0 40.0 |
| Whiteness %≥ | 90 | 90 |
Packaging & Shipping
25kg/20kg/50kg bag/according to client' request ,27MT/20'FCL without pallet
Strictly Deliver the goods in accodance with the contract.
Application
STPP (trisodium phosphate) is a multifunctional inorganic compound that is widely used in various fields. In detergents, it can effectively soften hard water, enhance cleaning performance, and increase cleaning ability. In industrial water treatment, STPP can be used for boiler water treatment to prevent the formation of scale and extend the service life of equipment. Additionally, it is also an important food additive, used to regulate acidity, improve food texture and taste. In the ceramic industry, STPP can be used as a fluxing agent to lower the sintering temperature and improve product quality. In the paper industry, it can be used in the sizing and bleaching processes of paper, enhancing the strength and whiteness of the paper. Due to its excellent properties, STPP has become an indispensable raw material in the chemical, food, and light industry sectors.
Certifications
ONLINE