YenzoWhat is E513 (sulphuric acid)?
E513 is sulphuric acid, INS number 513.
E513Sulphuric acid
E513 is sulphuric acid. Circular 24/2019/TT-BYT has no row for INS 513 in Appendix 1, the list of additives permitted in food.
- Code
- E513 · INS 513
- Group
- Acidity regulator
In VietnamNot on Vietnam's list of permitted additivesNot on Vietnam's list of permitted additives (Circular 24/2019); it may be used only in a product whose declaration is registered with the Vietnam Food Administration
Risk level on the Yenzo Scalevery low?Based on the Open Food Facts additives taxonomy
How E513 appears on labels
IngredientsIllustrative example
Wheat flour, vegetable oil, salt, sugar, acidity regulator (513), dried onion and garlic, pepper, natural colour (160a).
acidity regulator (513)acidity regulator 513E513INS 513
Questions about sulphuric acid
Is sulphuric acid 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 E513 permitted in Vietnam?
It was not found. Appendix 1 of Circular 24/2019/TT-BYT (consolidated text 09/VBHN-BYT), the list of additives permitted in food, has no row with INS 513, and neither does Appendix 2B.
Other acidity regulators
E503Ammonium carbonatesvery lowE504Magnesium carbonatesvery lowE507Hydrochloric acidvery lowE514Sodium sulphatesvery lowE515Potassium sulphatesvery lowE516Calcium sulphatevery low
See all acidity regulators →Updated 21 October 2026
Sources (4)
- 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:e513)
- 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
- Codex CAC/GL 36-1989 (Rev. 2008, Amd. 2015), Section 3: INS 513 Sulfuric acid