Comparing E452 - Polyphosphates vs E452I - Sodium polyphosphate

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Overview

E452 - Polyphosphates

Polyphosphates (E452) are a family of phosphate salts used in foods to hold water, stabilize texture, and keep minerals from causing off-flavors or haze. They appear in processed meats, seafood, dairy, and some beverages, and are regulated for safety and use levels in the U.S. and the EU. They’re part of the broader phosphate group that includes phosphoric acid and phosphate salts.

E452I - Sodium polyphosphate

Sodium polyphosphate (E452i) is a group of long-chain sodium phosphate salts used to keep foods stable, moist, and smooth. You may also see it called sodium hexametaphosphate. It helps bind water, control minerals, and support texture in processed foods.

Synonyms

E452

Polyphosphates

Polyphosphate E452

E452i

Sodium polyphosphate

sodium hexametaphosphate

sodium polymetaphosphate

Functions

emulsifying salt sequestrant stabilizer thickener

emulsifier emulsifying salt sequestrant stabilizer thickener

Origins

Synthetic

Mineral

Products

Found in 5,226 products

Found in 2,601 products

Search rank & volume

#403150 / mo🇺🇸U.S.

#1984.5K / mo🇺🇸U.S.

Awareness score

×0.01

under-aware

×0.25

under-aware

Search volume over time

Interest over time for 3 keywords in U.S. during the last 10 years.

Interest over time for 4 keywords in U.S. during the last 10 years.

Popular questions

Girlsdoporn e452 who is she?
That appears unrelated to the food additive E452; E452 refers to polyphosphates, synthetic phosphate salts used in foods as emulsifiers, stabilizers, humectants, and sequestrants.
How does polyphosphates reduce affinity of hemoglobin for oxygen?
Inorganic polyphosphate can bind to positively charged sites on deoxyhemoglobin and stabilize the low‑affinity T-state, shifting the oxygen dissociation curve to the right and lowering O2 affinity. This is a biochemical interaction and not a typical food-use effect of E452.
How many states use polyphosphates?
There’s no official tally; polyphosphates are used by many water utilities across numerous U.S. states and worldwide for iron/manganese sequestration and scale/corrosion control, depending on local water chemistry.
How many states use polyphosphates to treat water?
No centralized count exists, but hundreds of U.S. community water systems in dozens of states use phosphate-based treatments (often polyphosphates or poly/ortho blends) for metal sequestration and corrosion control. Usage changes over time with source water and regulations.
How to remove polyphosphates from drinking water?
Effective options include reverse osmosis or nanofiltration, and strong‑base anion exchange; utilities may also use coagulation/precipitation with iron or alum followed by filtration. Polyphosphates hydrolyze to orthophosphate over time, which the same processes remove; activated carbon and boiling are generally ineffective.