Comparing E210 - Benzoic acid vs E355 - Adipic acid
Overview
Synonyms
Products
Found in 386 products
Found in 771 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 3 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.
What is adipic acid used for?
In foods (E355) it’s an acidulant that provides a clean, persistent tartness and pH control in powdered drink mixes, gelatin desserts, chewing gum, and as a slow-acting leavening acid in baking powders.
How is adipic acid made?
Industrial production mainly oxidizes a cyclohexanone/cyclohexanol (KA oil) mixture with nitric acid, which generates nitrous oxide; newer routes use catalytic oxygen processes or bio-based fermentations.
Is adipic acid polar or nonpolar?
Polar, due to its two carboxylic acid groups (though its six‑carbon chain makes it less polar than shorter dicarboxylic acids).
Is adipic acid soluble in water?
Sparingly soluble in cold water (about 1.5 g/100 mL at ~25°C), with solubility increasing substantially at higher temperatures.
(3) could you substitute adipoyl chloride with adipic acid in this reaction? explain why or why not?
Not directly—acid chlorides are far more reactive acylating agents, so adipoyl chloride reacts with amines at mild conditions, whereas adipic acid generally requires activation (e.g., conversion to the acid chloride/anhydride or use of coupling/dehydrating agents) or high‑temperature condensation.