Sodium Tripolyphosphate (STPP)
Specifications
1. Chemical Name: Sodium Tripolyphosphate, Sodium Triphosphate
2. CAS No.: 7758-29-4
3. M. F: Na5P3O10
4. M.W:367.86
5. Physical properties: White crystal powder, melting point is 622°C, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+,Mg2+, can soften hard water, change suspension into solution, alkalescent, without causticity.
6. Quality standard: (GB25566-2010, FCC-V)
We supply STPP/sodium tripolyphosphate: tech grade STPP/sodium tripolyphosphate and food grade STPP/sodium tripolyphosphate.|
Parameter |
Grade |
|
|
Standard: GB/T9984-2008/QB1034-1991 |
Technical |
Food |
|
Assay Na5P3O10 % ≥ |
94.0 |
95.0 |
|
P2 O 5 % ≥ |
57.0 |
57.0 |
|
Water Insoluble Matter % ≤ |
0.15 |
0.05 |
|
Iron(Fe) % ≤ |
0.015 |
0.015 |
|
PH value (1% water solution) |
9.2-10.0 |
9.4-10.0 |
|
Heavy Metal (as Pb) % ≤ |
- |
0.001 |
|
Arsenic (As) % ≤ |
- |
0.0003 |
|
Fluoride (F) % ≤ |
- |
0.003 |
|
Chloride(Cl) % ≤ |
- |
0.025 |
|
Sulphate(SO4)% ≤ |
- |
0.4 |
|
Whiteness % ≥ |
90.0 |
90.0 |
|
Density (g/cm3) |
0.35-0.95 |
0.55-0.90 |
|
Phase I |
||
7. Type: Emulsifiers, Stabilizers
8. Usage: In food industry, it is used as water conservative, applied to can, fruit drinks, milk products, vegetable protein drinks, instant noodles, meat products, and so on.
9. Packaging& delivery: In 25kg/50kg composite plastic woven/paper bag with PE liner. Fangcheng port, China.
10. Storage and transport: It should be stored in a dry, ventilative and clean warehouse; kept away from moisture and heat, and stored separately from poisonous substances.
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