E515
Potassium sulphates
What the research shows
Not enough
published research on this page yet
A white solid also called sulphate of potash.
It is commonly used in fertilizers, providing both potassium and sulfur.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), 1985
No daily limit needed (“ADI not specified”, JECFA’s term for very low toxicity).
Regulatory status
Checked Sep 2026-
United States Permitted FDA 21 CFR 184.1643
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European Union Permitted EUR-Lex Reg. (EC) 1333/2008
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United Kingdom Permitted FSA retained EU law
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Canada Permitted Health Canada · Adjusting Agents
Status reflects the named register on the date checked. It is not a safety rating.
How we checkProducts
The 2 most-scanned of 34 products on Open Food Facts that list potassium sulphates.
- Club Soda Kroger · 240 ml 2 additives
- Club soda 2 additives
References
- 1Potassium sulfate. Wikipedia. Accessed September 26, 2026. CC BY-SA 4.0.