Sodium Tripolyphosphate STPP

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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 

Uses: 

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 

Power: 

(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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Immersion is a plastic coating process, that is, the plastic coating on the substrate (usually metal), such as: our daily clothes racks, pliers handle, scissors on the rubber sleeve, handrails and so on. According to whether need to be heated into hot dip and cold plastic raw materials, in accordance with the dip to points can be divided into liquid dip and dip powder.
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Biodegradable plastics(1) natural polymer modification method. Starch, cellulose, chitin, lignin, seaweed and other natural polymers as raw materials, through chemical modification and copolymerization method, these molecules were modified to synthesize biodegradable plastics.(2) chemical synthesis. The simulation of natural polymer structure, starting from simple water molecules, in the polymer chain of plastic with active groups such as amide, peptidyl, ester compounds containing these radicals, similar to natural protein structure, fragments of grease, easily biodegradable.(3) microbial fermentation, many microorganisms can take some organic substances as carbon source, through metabolism, secrete, produce polyester polymer, these molecules are easy to degrade, and can be further recycled.
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According to the current technical level, the production of 1 tons of starch requires 1.5 tons of corn, power consumption of 200KWh, coal consumption of 0.3 tons. If the 1 tons of starch into biomass plastics, can be processed into 1.01.2 tons of products, instead of common plastics, saving petrochemical resources, the country. Because there is no effective stimulating mechanism in the downstream market, the application of corn starch is still limited to the research area of modified starch. The industrialization of biomass plastics with corn starch as the main raw material will effectively stimulate the cultivation of corn and the production of cornstarch. Biomass plastics are gradually evolved from the further research and development of biodegradable plastics. It is gradually recognized that only by fully utilizing the natural and recyclable plant resources to develop and develop biomass plastics is a reliable way to achieve sustainable economic development. In the past 30 years, and in half a century, all countries in the world pay attention to and invest a lot of manpower and material resources of biomass plastics, mainly starch and biodegradable plastics mixing, carbon dioxide copolymer, biosynthesis of biodegradable plastics, and then generate a biosynthetic precursor chemical polymerization of biodegradable plastics in 4 categories. The latter three prices are higher, but the cost is higher, mainly used in medical materials, biomedical engineering and tissue engineering and other high-value products.
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Location Shandong,China
Year Established 2001
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