E520

Aluminium sulphate

What the research shows

Not enough

published research on this page yet

How we decide

A salt that dissolves in water.

It helps particles clump together when cleaning drinking water and making paper.

Written from English Wikipedia¹

Vegan
Vegetarian
EU permitted

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 check

Products

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.