Comparing E210 - Benzoic acid vs E216 - Propyl para-hydroxybenzoate
Overview
Synonyms
Products
Found in 386 products
Found in 77 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 2 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 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.
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.
Is benzoic acid a strong acid?
No—it's a weak acid, with a pKa of about 4.2.
What is the melting point of benzoic acid?
About 122–123 °C (251–253 °F).
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.
Is propylparaben safe?
At the low levels used in foods it’s considered safe by some regulators (e.g., FDA recognizes it as GRAS), but it is not permitted as a food additive in the EU.
Is propylparaben bad?
At permitted food-use levels it isn’t considered harmful by regulators that allow it; however, it is no longer authorized for use as a food additive in the EU.
What is propylparaben used for?
It’s an antimicrobial preservative (especially against molds and yeasts) used to extend shelf life in foods, and is also widely used in cosmetics and pharmaceuticals.
Are methylparaben and propylparaben safe?
Both are considered safe at the low levels allowed in foods by some regulators (e.g., FDA GRAS), but neither is currently authorized as a food additive in the EU.
Does propylparaben cause cancer?
There’s no good evidence that propylparaben causes cancer in humans, and major reviews have not classified it as carcinogenic; it shows weak estrogen-like activity in lab tests at doses far above typical dietary exposure.