Comparing E210 - Benzoic acid vs E451II - Pentapotassium triphosphate

Synonyms
E210
Benzoic acid
E451ii
Pentapotassium triphosphate
potassium triphosphate
potassium tripolyphosphate
KTPP
Products

Found in 386 products

Found in 15 products

Search rank & volume
#7533.2K / mo🇺🇸U.S.
#415110 / mo🇺🇸U.S.
Awareness score

×12.42
over-aware

×1.05
normal

Search volume over time

Interest over time for 2 keywords in U.S. during the last 10 years.

Interest over time for 5 keywords in U.S. during the last 10 years.

Popular questions
  1. 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.

  2. 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.

  3. Is benzoic acid a strong acid?

    No—it's a weak acid, with a pKa of about 4.2.

  4. What is the melting point of benzoic acid?

    About 122–123 °C (251–253 °F).

  5. 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.

  1. What is the refractive index of ktpp?

    There isn’t a single published refractive index for solid pentapotassium triphosphate; food-grade specs don’t list it. For aqueous solutions, refractive index depends on concentration and temperature, so you’d need to measure nD under your specific conditions.

  2. What is the refractive index of potassium triphosphate?

    A fixed refractive index isn’t typically reported for the solid; it’s not a standard QC parameter for this additive. In solution, the refractive index increases with concentration and varies with temperature and wavelength, so measure it for your formulation.

  3. What is the refractive index of potassium tripolyphosphate?

    No standard single value is published for the solid; specifications for E451ii don’t include refractive index. For practical purposes, determine nD on your specific potassium tripolyphosphate solution at the required concentration and temperature.