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