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  • CAS NO.:7758-29-4 STPP
  • CAS NO.:7758-29-4 STPP
  • CAS NO.:7758-29-4 STPP
  • CAS NO.:7758-29-4 STPP
CAS NO.:7758-29-4 STPPCAS NO.:7758-29-4 STPPCAS NO.:7758-29-4 STPPCAS NO.:7758-29-4 STPP

CAS NO.:7758-29-4 STPP

Product Name: Sodium tripolyphosphate
Other Name: STPP
Appearance: White powder or granular
CAS No.:7758-29-4
HS Code: 2835311000
MOQ: 5MT
Package: 25KG bag or as your requirement
Na5P3O10 (%): 94%MIN

Description of STPP

STPP is an inorganic compound with formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. It used in detergent, synergist for soap; water softener; tanning agent for leather making, auxiliary for dyeing; As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.; As an oil contamination resistance agent in paper production. 

  1694075683606067.jpg

Specification of STPP:  

NO.

Indexes

Industrial Grade

Food Grade

1

Assay Na5P3O10 % ≥

94.0

94.0

2

P2 O 5 % ≥

57.0

57.0

3

Water Insoluble Matter % ≤

0.15

0.05

4

Iron(Fe) % ≤

0.015

0.015

5

PH value (1% water solution)

9.2-10.0

9.5-10.0

6

Heavy Metal (as Pb) % ≤


0.001

7

Arsenic (As) % ≤


0.0003

8

Fluoride (F) % ≤


0.003

9

Whiteness % ≥

90

90

10

Ignition loss

1.0

1.0

11

density (g/cm3)

0.35-1.0

0.35-1.0

12

Phase I

5-40

5-40

13

Testing Standard

QB1034-91

GB25566-2010

 Applications of STPP:

1.Used as one of the main auxiliaries for synthetic detergent, synergist for soap; water softener, tanning agent for

leather making, auxiliary for dyeing;

2. As an effective dispersion agent for suspensions of coatings, kaolin, magnesium oxide, calcium carbonate and

drilling mud etc.;

3. As an oil contamination resistance agent in paper production.

4. In foodstuff industry it is used as quality improver in the process of canned food, fruit juice drinks, foodstuffs from

milk or soybeans. It may tender the meat in canned ham and soften the skin of horse bean in canned horse bean.

It may also serves as a softener or densifier in foodstuff industry.

 1694075417604461.jpg

Package & Storage of STPP:

25 KG bag ,  25MT/20'FCL .

also be packed according to customer's needs.

 Storage : Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.

 1694075336244502.jpg


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