Additive · Stabiliser

E501i — Potassium carbonate

E501i (Potassium carbonate) appears in the ingredient lists of 18 products sold in Ireland. Function: stabiliser.

18products with a complete record
50%rated A or B on Nutri-Score
3.0 gsugars per 100 g (median)
0.31 gsalt per 100 g (median)

Nutri-Score

How rated products spread
A 25%B 25%C 17%D 17%E 17%

12 rated products

Median values

Per 100 g, across all 18 products
Energy339 kcal
Sugars3.0 g
Saturates3.4 g
Salt0.31 g

Status in the United States (FDA)

Listed in the FDA inventory “Substances Added to Food”, with the regulations 21 CFR 73.85, 172.560, 173.310, 184.1619.

Technical effects listed by the FDA: flavoring agent or adjuvant, leavening agent, nutrient supplement, ph control agent, processing aid

The inventory is a partial list, and a listing is not an FDA approval of every use; the regulations set the permitted uses.

U.S. Food and Drug Administration, Substances Added to Food (updated 9/8/2026), public domain · CAS 584-08-7 via Wikidata (CC0)

Products containing it, by country

Products listing this additive in each country edition of Shelfpedia (Open Food Facts data)