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STPP cas7758-29-4 sodium tripoly phosphate food grade 94
 

sodium tripolyphosphate stpp p2o5
CAS no:7758-29-4
EINECS no:231-838-7
Molecular formula:Na5P3O10
Molecular weight:367.86413

Byname: Pent-sodium Phosphate

Standard executed : GB9983-88


ProductName:

            Sodium Tripolyphosphate

 

CAS No:

               7758-29-4

 

EINECS no

             231-838-7

 

Molecular formula

             Na5P3O10

 

Molecular weight

             367.86413

 

Description

White powder; Melting point 622?; Easily soluble in water; It has got salient chelating capacity to ions of Ca and Mg etc. and can soften hard water to make suspension solution become into clear solution; It has got weak alkalinity but no corrosiveness.            

 

 

Use

 

Used as one of the main auxiliaries for synthetic 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. 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.

 

Packing

 

 

 

 

 

 

Quality standard

Indexes

IndustrialGrade(ForExport For Domestic Market)

Food Grade

 

Assay Na5P3O10 % 

    94.0     90.0

94.0

 

  P2O5 % 

    57.0     57.0

57.0

 

Water Insoluble Matter %

    0.15     0.15

                   0.05

 

Iron(Fe) %

    0.01     0.01

                   0.01

 

PH value (1% water solution)

9.2-10.0   9.2-10.0

9.5-10.0

 

Heavy Metal (as Pb) %

   -         -

        0.001               

 

Arsenic (As) %

    -         -

                0.0003

 

Fluoride (F) %

   -           -

 

            0.003                   

 

Particle Size:

 

Through 16 mesh sieve %

     95       95          

                 95

 

Through 35 mesh sieve %

     90       90

                 90

 

Trough 100 mesh sieve %

    40        40

                 40

 

Whiteness %

    90        85

                 90

 
Previous SCI 85 sodium cocoyl isethionate 85 CAS 61789-32-0 cosmetic grade Next CAS10124-56-8 SHMP 68 sodium hexametaphosphate
 
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