E452Polyphosphates

E452 covers the polyphosphates, salts of phosphoric acid. Appendix 1 of Circular 24/2019/TT-BYT lists these functions: sequestrant, acidity regulator, emulsifier, emulsifying salt, humectant, raising agent, stabilizer, thickener.

Did you know? Appendix 1 of Circular 24/2019/TT-BYT lists five polyphosphate salts under INS 452: sodium, potassium, sodium calcium, calcium and ammonium polyphosphate (452(i)–452(v)).

Code: E452 · INS 452
Group: Sequestrant, Acidity regulator, Emulsifier, Emulsifying salt, Humectant, Raising agent, Stabilizer, Thickener

In Vietnam✓ PermittedOn the list of permitted additives — Circular 24/2019, Appendix 1

Risk level on the Yenzo Scalelow?Based on EFSA's scientific assessment, 2019

EFSA (2019) found that intake in children can exceed the ADI. On the Yenzo Scale this finding does not raise the risk level by itself.

How much a day stays within the ADI?EFSA 2019 (group ADI for phosphates, as phosphorus): 40 mg/kg bw per day

Your weight: 65 kg

about 2.6 g a daythat is 2,600 mg

How E452 appears on labels

IngredientsIllustrative example

Wheat flour, vegetable oil, salt, sugar, sequestrant (452), dried onion and garlic, pepper, natural colour (160a).

sequestrant (452)sequestrant 452E452INS 452

INS sub-codes

INS 452(i)Sodium polyphosphate

INS 452(ii)Potassium polyphosphate

INS 452(iii)Sodium calcium polyphosphate

INS 452(iv)Calcium polyphosphate

INS 452(v)Ammonium polyphosphate

Sources: Codex CXG 36-1989, Class Names and the International Numbering System (INS)

Polyphosphates in food

Processed cheese Dairy desserts Heat-treated meat and poultry Frozen fish and fishery products

Fresh and dried pasta and noodles

Breakfast cereals

Fine bakery wares Soup and broth cubes Dipping sauces and sauces

Questions about polyphosphates

What is E452 (polyphosphates)?

Is polyphosphates harmful?

In 2019 EFSA set a group ADI of 40 mg/kg body weight per day, expressed as phosphorus, for the phosphate additives (E338–E341, E343, E450–E452). EFSA noted that in one estimated scenario intake by infants, toddlers and other children exceeded this ADI.

Is E452 permitted in Vietnam?

Yes. Appendix 1 of Circular 24/2019/TT-BYT, the list of additives permitted in food, has the entries INS 452(i), 452(ii), 452(iii), 452(iv) and 452(v).

Other sequestrants

E400Alginic acidvery low E401Sodium alginatevery low E450Diphosphateslow E451Triphosphateslow E472Esters of mono- and diglycerides of fatty acidslow E516Calcium sulphatevery low

See all sequestrants →

Found in these products

Xúc xích phô mai CP (cheese sausage)CP · sausages and processed meat

Nước uống Revive chanh muối (salted lemon)Revive · soft drinks and flavoured drinks

Chả lụa heo eBon (chả lụa pork roll)eBon · sausages and processed meat

Xúc xích tỏi GO! (garlic sausage)GO! · sausages and processed meat

Ba rọi xông khói Le Gourmet (smoked bacon)Le Gourmet · sausages and processed meat

Nước tăng lực Sting hương dâu hồng sâm (strawberry red ginseng energy drink)Sting · soft drinks and flavoured drinks Thịt xông khói hỗn hợp GO! (mixed smoked bacon)GO! · sausages and processed meat Chả ức gà Le Gourmet (chicken breast ham roll)Le Gourmet · sausages and processed meat

Updated 21 October 2026

How Yenzo scores

Sources (2)

Information only, not medical advice. The risk level is the additive's class in Yenzo's open scoring method, based on the cited source.