Sodium Tripolyphosphate Food Grade (STPP Food Grade)

1. Chemical name: Sodium Tripolyphosphate

Synonyms: Sodium tripolyphosphate, pentabasic; STPP

2. Molecular Formula: Na5P3O10

3. Molecular weight: 367.86

4. CAS Number: 7758-29-4

5. Property: White crystal powder,melting point is 622℃,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. Specs.:

Sodium Tripolyphosphate (Na5P3O10): 95.0% min.;

P2O5: 57.0% min.;

Cl: 0.025% max.;

SO4: 0.4% max.;

Water insoluble: 0.05% max.;

Arsenic: 3ppm max;

Heavy metal (as Pb): 10ppm max;

Fluoride: 20ppm max;

PH Value: 9.5-10.0;

Whiteness: 85%

7. Usage: This phosphate sequesters multivalentions, thereby inhibiting oxidative rancidity. Reduce moisture loss during thawing and cooking. Emulsify fat and protein.

8. Packing: in 25kgs net kraft paper bag

9. 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.