Comparing E210 - Benzoic acid vs E929 - acetone peroxide

Overview

E210 - Benzoic acid

Benzoic acid (E210) is a preservative used to help keep acidic foods and drinks safe and fresh by slowing the growth of yeasts, molds, and some bacteria. It occurs naturally in small amounts in some berries and fermented foods, and is also made for food use under strict purity standards.

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E929 - acetone peroxide

Acetone peroxide (E929) is a highly unstable organic peroxide best known for its extreme explosiveness, not for use in food. It is not authorized as a food additive in the European Union or the United States, and you should not find it on modern ingredient lists.[^1][^2][^3] Because of its severe safety risks, regulators and the food industry avoid it entirely.[^4]

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Synonyms
E210
Benzoic acid
E929
acetone peroxide
Mother of Satan
Triacetone Triperoxide
Peroxyacetone
Functions
preservative
flour treatment agent
Origins
Plant
Synthetic
Synthetic
Products

Found in 386 products

Found in 1 products

Search rank & volume
#7533.2K / mo🇺🇸U.S.
#286970 / mo🇺🇸U.S.
Awareness score

×12.42
over-aware

×24.46
over-aware

Search volume over time

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

Interest over time for 5 keywords in U.S. during the last 10 years.

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Popular questions

  1. Is benzoic acid soluble in water?

    Only sparingly—about 3 g per liter at room temperature; its solubility increases in hot water and it dissolves readily in many organic solvents.

  2. Is benzoic acid polar?

    It has a polar carboxyl group but a nonpolar aromatic ring, so overall it’s only weakly polar; its benzoate salt is much more polar and water‑soluble.

  3. Is benzoic acid a strong acid?

    No—it's a weak acid, with a pKa of about 4.2.

  4. What is the melting point of benzoic acid?

    About 122–123 °C (251–253 °F).

  5. Is benzoic acid bad for you?

    At approved food levels it’s considered safe, with an ADI of 0–5 mg/kg body weight/day; some people may experience irritation or hypersensitivity, and benzene formation in certain acidic drinks is monitored and kept very low.

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  1. What happens if you mix acetone and hydrogen peroxide?

    They can react to form organic peroxides (such as acetone peroxide/TATP), which are extremely sensitive explosives—do not mix them.

  2. How to make acetone peroxide?

    I can’t help with that; acetone peroxide (E929) is a highly unstable explosive, and attempting to make it is extremely dangerous and illegal in many places.

  3. Does hydrogen peroxide have acetone in it?

    No—standard hydrogen peroxide products do not contain acetone; never combine them because the mixture can form explosive peroxides.

  4. What does acetone and hydrogen peroxide make?

    They can form acetone peroxides (e.g., TATP), which are highly unstable explosives and are not permitted as food additives.

  5. Acetone peroxide what is it?

    E929 acetone peroxide is an organic peroxide and primary high explosive; it is not approved for use in foods in the EU or US.

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