STPP Tech Grade 94%

1. Commodity : Sodium tripolyphosphate

2. Abbreviatation : STPP

3. CAS No.: 7758-29-4

4. Molecule formule : Na5P3O10

5. Purity : 94% 

6. Technical Specifications : 
 No  Specification                       Industrial grade   Food grade 
 1)  Main content   %≥                       94.0                94.0 
 2)  P2O5   %≥                                  57.0                57.0 
 3)  Water insoluble  %≤                     0.15                0.05 
 4)  Iron, as Fe  %≤                            0.01                0.01 
 5)  pH of 1% water solution              9.2-10.0          9.5-10.0 
 6)  Heavy metal, as Pb  %≤                   -                  0.001 
 7)  Arsenic, as As  %≤                           -                 0.0003 
 8)  Fluoride ,as F  %≤                            -                  0.003 
 9)  Chloride, as Cl   %≤                          -                     -

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.

STORAGE AND TRANSPORT : 
It should be stored in a ventilative and dry warehouse instead of in  the open air,kept away from water, moisture and sunlight during transport, handled with care, to avoid damage to the plastic bags. Furthermore, it should be stored separately from poisonous substances.

Properties:White microdot powder with luster, melting point at 622oC, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity.

 Package

25kg in plastic woven bag.Or as your custom packing.

Our advantages

1.we have our own raw material -- phosphoric acid and manufacture down- stream phosphates products ,

  this allow you to get more profits from us .

2. two production lines to guarantee the delivery timely .

3. flexible packing and marks can be done as the clients' request .