Comparing E501 - Potassium carbonates vs E529 - Calcium oxide

Select first additive

Select second additive

Overview

E501 - Potassium carbonates

Potassium carbonates (E501) are white, alkaline salts used to control acidity and help baked goods rise. The group includes potassium carbonate and potassium bicarbonate. They are common in “cocoa processed with alkali” and in some low‑sodium baking mixes.

E529 - Calcium oxide

Calcium oxide (E529) is a highly alkaline compound also known as quicklime. In food processing, it is used in tiny amounts to control acidity and to support certain steps where a strong base is useful. It turns into calcium hydroxide when it meets water, so its effect in foods is to raise pH.

Synonyms

E501

Potassium carbonates

E529

Calcium oxide

Functions

acidity regulator raising agent

acidity regulator

Origins

Plant

Synthetic

Mineral

Products

Found in 1,085 products

Found in 16 products

Search rank & volume

#394160 / mo🇺🇸U.S.

#1676.9K / mo🇺🇸U.S.

Awareness score

×0.03

under-aware

×48.32

over-aware

Search volume over time

Search history data is not available.

Interest over time for 2 keywords in U.S. during the last 10 years.

Popular questions

Flake8 e501 line too long how to fix?
In food labeling, E501 refers to potassium carbonates, a permitted pH regulator/stabiliser; there's nothing to fix, but you can avoid it by choosing products without E501 on the label.
How does potassium carbonates structure allow it to perform its function?
As an ionic salt (K2CO3/KHCO3), it dissociates in water to potassium and carbonate/bicarbonate ions, creating alkalinity and buffering pH. The carbonate reacts with acids to release CO2, aiding leavening and stabilizing textures.
How to avoid e501 line too long?
To avoid E501 in foods, check ingredient lists and pick products labeled additive‑free or without potassium carbonates. In recipes, use alternatives like sodium bicarbonate (E500), baking powder, or yeast depending on the application.
How to fix e501 errors?
If a recipe tastes overly alkaline from potassium carbonates, reduce the amount and balance with an acid (e.g., cream of tartar, lemon juice, or acidic dairy), or substitute a milder leavening/pH regulator like baking powder.
How to fix e501 errorsi n python?
E501 in food labeling is potassium carbonates, an approved pH regulator/stabiliser; if you meant the Python lint rule E501, that’s unrelated to food additives.