Comparing E210 - Benzoic acid vs E237 - Sodium formiate
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Found in 386 products
Found in 5 products
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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.
Is sodium formate an acid or base?
It’s the sodium salt of formic acid; in water the formate ion acts as a weak base, so its solutions are mildly basic.
Is sodium formate a strong base?
No—it's a weak base; the formate ion only hydrolyzes slightly in water (formic acid pKa ≈ 3.75).
. what is the effect on equilibrium when sodium formate is added to a solution of formic acid?
It adds the common ion (formate), shifting HA ⇌ H+ + A− to the left, suppressing dissociation and creating a buffer; the solution becomes less acidic than pure formic acid.
1l solution of .05m sodium formate. what is final ph if 12ml of 1.0m hcl is added?
About pH 4.25. Reaction converts 12 mmol formate to formic acid, leaving ~38 mmol A− and 12 mmol HA; with pKa ≈ 3.75, pH ≈ 3.75 + log(38/12) ≈ 4.25.
Determind how much formic acid and sodium formate to make buffer?
Specify the target pH and total buffer concentration, then use Henderson–Hasselbalch: [A−]/[HA] = 10^(pH − pKa). For example, at pH 4.25 with 0.10 M total buffer in 1 L, you’d need ~0.076 mol sodium formate and ~0.024 mol formic acid.