Comparing E210 - Benzoic acid vs E557 - hemimorphite
Overview
Synonyms
Products
Found in 386 products
Found in 0 products
Search rank & volume
Awareness score
Awareness data is not available.
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 calamine lotion used for?
Calamine lotion (zinc oxide with a little ferric oxide) is used topically to relieve itching and mild skin irritation from bites, rashes, or poison ivy; this is different from E557 hemimorphite, a zinc silicate food anticaking agent.
What does calamine lotion do?
It soothes itching and irritation and helps dry oozing skin lesions via an astringent, protective barrier effect; this is not the same substance as E557 hemimorphite (zinc silicate) used in foods.
Can you leave calamine lotion on overnight?
Yes—on intact skin it’s generally fine to leave on for several hours or overnight, rinsing off if it over-dries or irritates; note this concerns calamine lotion, not E557 hemimorphite (a food additive).
Does calamine lotion expire?
Yes; check the bottle’s expiration date, as older product can separate or become less effective—replace if expired or if odor/texture changes; E557 hemimorphite is unrelated to this topical product.
Can you put calamine lotion on a dog?
Avoid unless a veterinarian advises—dogs may lick calamine (zinc oxide), and ingestion can be harmful; E557 hemimorphite is a food additive, not a veterinary topical.