Comparing E261 - Potassium acetate vs E263 - Calcium acetate

Overview

E261 - Potassium acetate

Potassium acetate (E261) is a food additive used to control acidity and help preserve foods. It is the potassium salt of acetic acid, the acid that gives vinegar its sharp taste. You’ll mostly see it in pickled or seasoned foods where a stable, mild acidity is needed.

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E263 - Calcium acetate

Calcium acetate (E263) is a calcium salt of acetic acid used in foods to control acidity, help preserve freshness, and support texture. It is commonly found in bakery items and other processed foods where a mild acid and a source of calcium are useful. Safety reviews by regulators consider its approved uses to be acceptable.

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Synonyms
E261
Potassium acetate
E263
Calcium acetate
Functions
acidity regulatorpreservative
acidity regulatorstabilizer
Origins
Microbiological
Synthetic
Microbiological
Synthetic
Mineral
Products

Found in 293 products

Found in 376 products

Search rank & volume
#1647.1K / mo🇺🇸U.S.
#12013.1K / mo🇺🇸U.S.
Awareness score

×3.50
over-aware

×5.03
over-aware

Search volume over time

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

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

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Popular questions

  1. Is potassium acetate soluble?

    Yes—potassium acetate is highly soluble; it dissolves readily in water and is also soluble in alcohols.

  2. Is potassium acetate soluble in water?

    Yes; it is very soluble in water at room temperature.

  3. What does potassium acetate do in dna extraction?

    In DNA extraction (e.g., alkaline lysis), potassium acetate with acetic acid neutralizes the lysate and precipitates SDS–protein–lipid complexes and denatured chromosomal DNA, leaving plasmid DNA in solution.

  4. What is potassium acetate used for?

    As a food additive (E261), it’s used as a preservative and acidity regulator/buffering agent to inhibit microbial growth and help control pH. It is also used outside foods for runway de-icing and as a lab reagent.

  5. What is the formula for potassium acetate?

    CH3COOK (also written as KC2H3O2 or KCH3COO).

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  1. What is calcium acetate used for?

    As a food additive (E263), it’s used as a preservative and stabilizer to inhibit mold growth, help maintain texture, and can aid in buffering acidity in foods.

  2. Is calcium acetate soluble in water?

    Yes—calcium acetate is highly soluble in water; it is poorly soluble in ethanol.

  3. What is the formula for calcium acetate?

    Ca(C2H3O2)2; the common commercial form is the monohydrate, Ca(C2H3O2)2·H2O.

  4. Calcium acetate 667 mg para que sirve?

    Como aditivo alimentario (E263), se usa como conservante y estabilizante para frenar mohos y ayudar a mantener la textura. En medicina, el comprimido/cápsula de 667 mg se usa como quelante de fosfato en enfermedad renal crónica.

  5. Calcium acetate para que sirve?

    Como aditivo alimentario (E263), sirve de conservante y estabilizante, ayudando a controlar la acidez y la textura de los alimentos. Fuera del ámbito alimentario, también se usa como quelante de fosfato en pacientes con enfermedad renal.

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