What is E513?

Sulfuric acid or sulphuric acid, known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formula H2SO4. It is a colorless, odorless, and viscous liquid that is miscible with water. E513 sits in the E500–E599 series, which in the EU classification mainly covers acidity regulators and anti-caking agents.

What is E513 used for?

E513 belongs to the acids & acidity regulators group. Acids and acidity regulators adjust taste and shelf life, such as citric acid (E330).

Is E513 safe?

E513 is considered safe at the levels used in food and is approved for use in the EU. “Safe” means it is approved in the EU and regarded as safe at the levels used in food.

How E513 appears on labels

On food packaging you'll find E513 either as the number “E513” or by the name “Sulphuric acid” in the ingredient list, often after its function. Ingredients are listed in descending order by weight, so an additive near the end is present only in small amounts.

Is E513 vegan?

Yes, E513 is suitable for vegans.