Factory supplied Selenium Fertilizer - Sodium Tripolyphosphate – Donglin Chemical

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Factory supplied Selenium Fertilizer - Sodium Tripolyphosphate – Donglin Chemical Detail:

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Product name	Sodium Tripolyphosphate
Other name	STPP
Chemical Formula	Na₅P₃O₁₀
State	Power/granular
CAS No	7758-29-4
Color	White

Specification

Items	Specifications:	Test Results	Unit
Phosphorus Pentoxide(as P2O5):	57min	57.5	%
Purity(as Na₅P₃O₁₀)	85min	85.6	%
Water Insoluble:	0.1max	0.1	%
As	10 max	8	（mg/kg）
F	50max	35	（mg/kg）
Heavy metals (as pb)	4 max	4	（mg/kg）

Usage:

Food applications

STPP is a preservative for seafood, meats, poultry, and animal feeds.[5] It is common in food production as E number E451. In foods, STPP is used as an emulsifier and to retain moisture. Many governments regulate the quantities allowed in foods, as it can substantially increase the sale weight of seafood in particular. The United States Food and Drug Administration lists STPP as “generally recognized as safe.”

In detergents

The majority of STPP is consumed as a component of commercial detergents. It serves as a “builder,” industrial jargon for a water softener. In hard water (water that contains high concentrations of Mg2+ and Ca2+), detergents are deactivated. Being a highly charged chelating agent, TPP5− binds to dications tightly and prevents them from interfering with the sulfonate detergent.

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