E514Sodium sulphates

E514 covers sodium sulfate (514i) and sodium hydrogen sulfate (514ii). In Appendix 1 of Circular 24/2019/TT-BYT these substances have the functions acidity regulator.

Code: E514 · INS 514
Group: Acidity regulator

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

Risk level on the Yenzo Scalevery low?Based on the Open Food Facts additives taxonomy

How E514 appears on labels

IngredientsIllustrative example

Wheat flour, vegetable oil, salt, sugar, acidity regulator (514), dried onion and garlic, pepper, natural colour (160a).

acidity regulator (514)acidity regulator 514E514INS 514On Vietnamese labels: Natri sulfat

INS sub-codes

INS 514(i)Sodium sulfate

INS 514(ii)Sodium hydrogen sulfate

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

Sodium sulphates in food

Bread and rolls Fine bakery wares

Questions about sodium sulphates

What is E514 (sodium sulphates)?

According to Appendix 1 of Circular 24/2019/TT-BYT, the forms of E514 have the functions acidity regulator; the function of each form is on its own row of the appendix.

Is sodium sulphate harmful?

In 2019 EFSA concluded that exposure to sulphate from sulphuric acid and its sodium, potassium, calcium and ammonium salts (E513–E517) does not raise a safety concern at the reported uses and use levels, and that there is no need for a numerical ADI. EFSA noted that mean and 95th percentile exposure are far below the 300 mg/kg dose that caused a laxative effect in humans.

Is E514 permitted in Vietnam?

Yes. Sodium sulfate (ins 514(i)) and sodium hydrogen sulfate (ins 514(ii)) are all listed in Appendix 1 of Circular 24/2019/TT-BYT, the list of additives permitted in food.

Other acidity regulators

E504Magnesium carbonatesvery low E507Hydrochloric acidvery low E513Sulphuric acidvery low E515Potassium sulphatesvery low E516Calcium sulphatevery low E523Aluminium ammonium sulphatemoderate

See all acidity regulators →

Updated 21 October 2026

How Yenzo scores

Sources (3)

Open Food Facts additives taxonomy (Yenzo's table cites no EFSA opinion for this code). Open Food Facts additives taxonomy, https://github.com/openfoodfacts/openfoodfacts-server/blob/main/taxonomies/additives.txt (entry en:e514)
Thông tư 24/2019/TT-BYT (văn bản hợp nhất 09/VBHN-BYT), Phụ lục 1
EFSA Journal (2019). Re-evaluation of sulphuric acid and its sodium, potassium, calcium and ammonium salts (E 513, 514 (i), 514 (ii), 515 (i), 515 (ii), 516 and 517) as food additive

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