Vegan

E500iii is classified as vegan by the local ingredient taxonomy.

Names you may see on a label

Półtorawęglan soduГидрокарбонат тринатрияSodium sesquicarbonatenatriumsesquikarbonatnatriumsesquicarbonatSesquicarbonato de sódioNatriumsesquicarbonatE500(iii)Sesquicarbonato di sodioNatriumseskvikarbonatSesquicarbonato de sodioNatriumsesquicarbonaatSeskviuhličitan sodnýSesquicarbonate de sodiumNatriumseskvikarbonaattiNatriumseskvikarbonaattia

How to verify it

Check that the name refers to this exact ingredient and not a similar additive with a different source.