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USAGES : The majority of STPP is consumed as a component of commercial detergents. STPP is a preservative for seafood, meats, poultry, and animal feeds.
It is common in food production as E number E451. In foods, STPP is used to retain moisture. Many governments regulate the quantities allowed in foods, as it can substantially increase the sale weight of seafood in particular. Other uses (hundreds of thousands of tons/year) include "ceramics, leather (as Synthetic Tanning Agent), anticaking, setting retarders, flame retardants, paper, anticorrosion pigments, textiles, rubber manufacture, fermentation, antifreeze."
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