Last reviewed May 2026 · 1 min read
Is Sodium Sesquicarbonate vegan?
Also known as: E500iii
E-number: E500iii
Vegan
Suitable for a vegan diet.
Yes — Occurs naturally as a mineral (trona) or produced synthetically.
01 · The basics
What is Sodium Sesquicarbonate?
A double salt of sodium bicarbonate and sodium carbonate used as a pH buffer.
02 · The source
Where it comes from
Occurs naturally as a mineral (trona) or produced synthetically. 100% vegan.
Frequently asked
FAQ
Is E500iii vegan?
Yes, it is a mineral salt.
Commonly found in
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