E-code guide
E523Aluminium Ammonium Sulphate
HalalFirming agent
E523

Aluminium Ammonium Sulphate

Firming agent

SANHA classifies this as halal.
Based on 1 cited authority. Confidence: medium.

What authorities say

1 authority on record
1says Halal
Saying Halal1 of 1

Why this verdict

E523 is aluminium ammonium sulphate (ammonium alum), a firming agent and stabiliser. SANHA classifies E523 as Halaal. SANHA is the only authority in the source corpus to publish a position on this additive. It is produced synthetically.

Common questions

Is E523 halal?

Aluminium Ammonium Sulphate (E523) is classified halal. SANHA classifies it as halal.

What is E523 made from?

Aluminium Ammonium Sulphate (E523) is a mineral.

Only SANHA has a published position on this additive. The verdict is provisional until more authorities weigh in.
Last reviewed by the HalalHQ research team in May 2026.