E501ii — Potassium hydrogen carbonate
E501ii (Potassium hydrogen carbonate) appears in the ingredient lists of 397 products sold in the United States. Function: stabilizer.
Nutri-Score
311 rated products
Median values
| Calories | 222 kcal |
| Sugars | 9.1 g |
| Saturated fat | 1.4 g |
| Salt | 0.44 g |
Categories
Status in the United States (FDA)
Listed in the FDA inventory “Substances Added to Food”, with the regulations 21 CFR 73.85, 184.1613.
Technical effects listed by the FDA: formulation aid, 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 298-14-6 via Wikidata (CC0)
Products containing it, by country
Products listing this additive in each country edition of Shelfpedia (Open Food Facts data)
| Country | Products |
|---|---|
| United States | 397 |
| France | 140 |
| United Kingdom | 136 |
| Spain | 29 |
| Canada | 28 |
| Germany | 23 |
| India | 20 |
| Australia | 17 |
| Ireland | 12 |
| Belgium | 10 |
| Morocco | 9 |
| Sweden | 8 |
| Switzerland | 7 |
| New Zealand | 5 |
| Brazil | 5 |
Products
397 products, most viewed first · page 1 of 9.
Source: Open Food Facts export of November 1, 2026, ODbL, and USDA FoodData Central, October 2026 release, CC0 · Shelfpedia calculations (medians, distributions).