Sodium Tripolyphosphate STPP

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1 Metric Ton m.t.
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3000 Metric Tons per Month m.t./month

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Detailed Product Description

Sodium Tripolyphosphate STPP:

1.White granular or powdery

2.Assay Na5P3O10 (%) >94.0%min

3. CAS NO: 7758-29-4

Product Description

Sodium Tripolyphosphate(STPP) 

Molecular formula: Na5P3O10 

Molecular Weight: 367.86 

Standard executed: GB/T9983-2004(technical grade) QB1034-91(food grade) 

CAS Number: 7758-29-4 


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. 

Guaranteed Technical Specifications: 

Specifications---------------------Industrial Grade 

AssayNa5P3O10 % -----------------------≥ 94.0 

P2O5 % --------------------------------≥ 57.0 

Sodium Pyrophosphate %-----------------≤ 3 

Sodium Sulphate ---------------------≤ 2.0 

Water Insoluble Matter %---------------≤ 0.1 

Iron(Fe) %-----------------------------≤ 0.01 

pH value(1%water solution)-------------9.2-10.0 

Heavy Metal (as Pb) %-------------------≤ - 

Arsenic (As) %--------------------------≤ - 

Fluoride (F) %--------------------------≤ - 

Particle Size 


(ASTM)Through 200 mesh sieve %---------≥ 75 

Through 100 mesh sieve %---------------≥ 90 

Whiteness %----------------------------≥ 100.0 

Density-------------------------------0.7-1.000 kg/lt 

Phase I -------------------------------10-30 

Packing and storage: 

In 25Kg, 50 Kg, 1000 Kg bage. Store at a cool, dry and well ventileated place.

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Q:Will plastic raw materials (such as PET, PP, etc.) be made of non-woven fabrics, will certainly contain BPA?
Only PC (polycarbonate) is available.If the customer is not sure, you can take your product to the third party organization testing, prove that you can do without BPA, and ask your supplier to provide inspection reports and guarantee without BPA.
Q:What are the raw materials for environmental friendly portable plastic bags?
[environmental protection portable plastic bags] generally speaking, there is no fully environmentally-friendly plastic bags, only some plastic bags to add some ingredients, it is easy to degrade some. Biodegradable plastic. The main material is low pressure polyethylene plastic, in the production of plastic packaging products to add a certain amount of additives, such as starch, modified starch or other cellulose, photosensitizer, biodegradable agent.
Q:The difference between resin and plastics
Plastic refers to the resin (or in the process of using monomer polymerization) as the main ingredient, such as plasticizers, fillers, lubricants, additives such as colorants as auxiliary components, can flow in the process of forming materials, but also can be said to be material with resin as the main raw material and has plasticity and product. Plastic generally refers to finished products, such as plastic cups, plastic bowls and so on.
Q:What are the raw materials for plastic products? Resin or oil?
Molded plastic: a resin mixture for molding. Such as thermosetting plastics.Laminated fabric: a fabric impregnated with a resin that can be laminated and pressed together to form an integral material.Injection, extrusion and blow molding plastics: - refers to a mixture of resins that can melt and flow at the cylinder temperature and rapidly harden in the mold. Such as general thermoplastic plastics.Casting liquid: a liquid resin mixture that can be poured into a mold and hardened into a definite shape in case of no pressure or little pressure. Such as MC nylon.Reaction injection mold plastic: generally refers to liquid raw material, pressurized injection mold cavity, so that the reaction of curing, finished products. Such as polyurethane.
Q:I do PA, PC, PP and other plastic raw materials can be used in the eye frame and lens it
In general, the lenses of PC need to be covered with scratch resistant protective films, which will be sufficient for better aging, and most lenses for children.
Q:What are the plastic raw materials for this purpose?
From the bathroom supplies we use when we wake up, the tableware we use for breakfast, the stationery we use for work and study, the seat cushion for sleeping, the mattress, and the shell of TV set, washing machine and computer
Q:Plastic raw materials are granular, why not powder?
The powder is too choking! Add water to influence the effect of the product!
Q:What are the plastic bags made of?
General civilian products, mostly polyethylene (PE) to do, PE is divided into low pressure high-density HDPE, low pressure high-density LDPE and linear low-density LLDPE
Q:Low pressure plastic raw materials in the process of blowing the two sides of the fold, how to deal with?
The blowing ratio is one of the control points of blown film production and! Refers to the ratio between the bubble diameter and the diameter of not blowing blowing after.
Q:How are plastic products made? What is the raw material of plastics?
Plastic raw materials are particles, the production principle is similar
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Location Shandong,China
Year Established 2001
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Main Markets North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, Domestic Market
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