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Quality Improver Sodium Tripolyphosphate(STPP) CAS NO.: 7758-29-4

Name: Sodium TripolyphosphateAppearance: White PowderNa5P3O10, %: ≥94Tech Grade: Industrial / Food GradeCAS NO.: 7758-29-4Molecular Formular: Na5P3O10HS Code: 28352910Sodium Tripolyphosphate (STPP), also known as pentasodium triphosphate, is very easily soluble in water. STPP 94% is white or
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Product Description

Name: Sodium Tripolyphosphate

Appearance: White Powder

Na5P3O10, %: ≥94

Tech Grade: Industrial / Food Grade

CAS NO.: 7758-29-4

Molecular Formular: Na5P3O10

HS Code: 28352910

Sodium Tripolyphosphate (STPP), also known as pentasodium triphosphate, is very easily soluble in water. STPP 94% is white or colorless crystals in appearance, and it can soften hard water to make suspension into solution, alkalinity, without causticity. It is a surfactant and has got outstanding emulsification to lubricants and fat. What’s more, it can be used for water treatment and other industrial uses.

Item	Industrial grade	Food grade
Main contents (Na5P3O10 )%≥	94.0	94.00
Phosphorus pentoxide（P2O5） %≥	56.5	57.0
Water insoluble %≤	0.15	0.10
Fe %≤	0.015	0.015
PH value of 1% solution	9.2-10.0	9.4-10.0
Heavy metals, as Pb %≤	/	0.001
Arsenic,as As %≤	/	0.0003
Fluoride, as F %≤	/	0.003
Whiteness %≥	85	85
Package	Plastic-woven sack with polythene inner bag, net weight 25kg, 50kg or 1000kg.
Storage	Keep away from water or moisture, do not pile up the open air.

What is Sodium Tripolyphosphate(STPP) Used For?

STPP in the Food Industry. As a kind of food additives. It can be used as a quality improver and water retention agent in cans, juice drinks, dairy products, soy milk, and other foods. Also, STPP food grade can be used as a softener and thickener, for example, to tender the canned ham and soften the bean hull in the canned beans.

STPP Chemical for Water Treatment. Used as water softener for industrial water, scale inhibitor in cooling water treatment, soap booster, and prevent soap grease precipitation and frosting at the same time. Besides, it has a strong emulsification effect on lubricating oil and fat. It also can adjust the PH value of buffer soap.

STPP Uses in Detergent. Used as one of the main auxiliaries for synthetic detergent, synergist for soap; As an inorganic surfactant and metal compound agent, sodium triphosphate has a strong emulsification effect dirt and can buffer the ph of an aqueous solution, which is beneficial to the removal of acidic dirt. Also, it has the effect of preventing caking in detergent powder.

More Other Uses. Other uses of STPP include ceramics (decrease the viscosity of glazes up to a certain limit), anticaking, setting retarders, flame retardants, paper, anticorrosion pigments, textiles, rubber manufacture, fermentation, antifreeze. STPP is also used as a polyanion crosslinker in polysaccharide-based drug delivery.