SODIUM TRIPOLYPHOSPHATE(STPP)-Fine Phosphates-Chengdu Pioneer phosphochemicals Co.,Ltd

SODIUM TRIPOLYPHOSPHATE(STPP)

Chemical formula：Na₅P₃O₁₀

Molecularweight：367.86

Standard executed：

GB/T9984-2008(Industrial Grage)

GB25566-2010(Food Grade)

CAS Number：7758-29-4

Properties: White microdot powder with luster, melting point at 622℃, easily soluble in water,

Product details

Properties:

White microdot powder with luster, melting point at 622℃, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspensioninto solution, alkalescent, without causticity.

Application:

lt has good complexing and dispersing properties, andis used in industry as synthetic detergent, dispergator in ceramic production, and synergist of soap. lt has strong emulsifying effect on lubricating oil and fat, can be usedto adjust the PH value of buffer soap solution, and can be used as dispersant in water softener, tanning agent, dyeing assistant, paint, kaolin, magnesium oxide and calcium phosphate. ln food industry it can be used as water retention agent, quality improver, thickening agent. lt is commonly used in canned food, frozen seafood, fruitdrinks and dairy products.

Packing and storage:

plastic-woven sack with polythene inner bag, net weight 25Kg, 50Kg or 1000Kg; keep away from water or moisture, do not pile up the open air.

Technical Specifications:

NO.		Specifications			Industrial Grage	Food Grade
1	Main contents				MIN 94.0%	MIN 94.0%
2	Phosphorus pentoside				MIN 56.5%	MIN 56.5%
3	Water insoluble				MAX 0.15%	MAX 0.05%
4	Iron, as Fe				MAX 0.03%	MAX 0.015%
5	PH value of 1% solution				9.2-10.0	9.2-10.0
6	Heavy metal, as Pb					MAX 0.001%
7	Arsenic, as As					MAX 0.0003%
8	Fluoride, as F					MAX 0.003%
9	Particle Size		Powder	Through 100 mesh sieve	MIN 40.0%	MIN 40.0%
				Through 35 mesh sieve	MIN 90.0%	MIN 90.0%
				Through 16 mesh sieve	MIN 95.0%	MIN 95.0%
			Fine powder	Through 100 mesh sieve	MIN 90.0%	MIN 90.0%
10	Whiteness				MIN 85.0%	MIN 85.0%
11	Pb					MAX 0.0004%

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