Vegan

E501 is classified as vegan by the local ingredient taxonomy.

Names you may see on a label

Carbonatos de potássioWęglany potasukaliumkarbonaterkaliumcarbonaterPotassium carbonateskaliumkarbonaatitCarbonates de potassiumCarbonati di potassioKaliumcarbonateKaliumcarbonatenCarbonatos de potasioKaliumkarbonater

How to verify it

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