E520
Aluminium sulphate
What the research shows
Not enough
published research on this page yet
A salt that dissolves in water.
It helps particles clump together when cleaning drinking water and making paper.1
- Vegan
- Vegetarian
- EU permitted
What expert reviews concluded
Expert panels that weigh all the research. Shown for context: the signal at the top does not count them.
-
UN and WHO food additive experts (JECFA), 1978
No acceptable daily intake set.
Regulatory status
Checked Sep 2026-
United States Permitted FDA 21 CFR 182.1125
-
European Union Permitted EUR-Lex Reg. (EC) 1333/2008
-
United Kingdom Permitted FSA retained EU law
Status reflects the named register on the date checked. It is not a safety rating. A country appears here once we've found this ingredient on its official list.
How we checkProducts
The 6 most-scanned of 559 products on Open Food Facts that list aluminium sulphate.
- Big Mac McDonald's · 232 g 18 additives
- Sweet Relish Heinz · 12.7 fl oz (375 ml) 8 additives
- Dill Relish Heinz · 12.7 fl oz 4 additives
- Heinz Relish Sweet Bell · 769 ml 6 additives
- sweet gherkin pickles no name 5 additives
- Jumbos Biscuits Best Choice 12 additives
References
- 1Aluminium sulfate. Wikipedia. Accessed September 26, 2026. CC BY-SA 4.0.