Comparing E260 - Acetic acid vs E338 - Phosphoric acid
Overview
Synonyms
Products
Found in 3,047 products
Found in 4,566 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 3 keywords in U.S. during the last 10 years.
Interest over time for 4 keywords in U.S. during the last 10 years.
Popular questions
Is acetic acid a strong acid?
No—acetic acid (E260) is a weak acid in water (pKa ≈ 4.76), though concentrated (glacial) acetic acid is corrosive.
Is vinegar acetic acid?
Vinegar is a solution of acetic acid in water (typically about 4–8% acetic acid by volume), not pure acetic acid.
What is acetic acid used for?
In foods, E260 is used as an acidity regulator, preservative, and flavoring (e.g., pickling, sauces); industrially it’s a precursor to vinyl acetate and cellulose acetate and is used in descaling/cleaning.
Which statement describes the acid found in vinegar acetic acid?
It is a weak organic acid (ethanoic acid, CH3COOH) that gives vinegar its sour taste and antimicrobial effect; food-grade vinegar contains at least about 4% acetic acid by volume.
Is acetic acid polar?
Yes—acetic acid is a polar, hydrogen-bonding (protic) molecule due to its carboxyl group, and it mixes well with water and many polar solvents.
Is phosphoric acid bad for you?
At permitted food levels it’s considered safe (GRAS in the U.S.; EFSA sets a group ADI for phosphates of 40 mg/kg bw/day as phosphorus). Overconsumption—especially via acidic soft drinks—can contribute to dental enamel erosion, and high phosphate intakes may be a concern for people with kidney disease.
Is phosphoric acid a strong acid?
No—it's a weak, triprotic acid (pKa ≈ 2.15, 7.2, 12.3), though concentrated solutions are corrosive.
What is phosphoric acid used for?
In foods it’s used as an acidulant to add tartness and control pH (e.g., in colas) and as a sequestrant/antioxidant to stabilize color and flavor.
What does phosphoric acid do to the body?
It dissociates into phosphate ions, which are essential for bones and energy metabolism, while the acid load is buffered and excreted. High intakes from acidic drinks can erode tooth enamel, and excess phosphate may be problematic in kidney disease or with low calcium intake.
What is the formula for phosphoric acid?
H3PO4.