Comparing E170I - Calcium carbonate vs E333III - Tricalcium citrate

Synonyms
E170i
Calcium carbonate
CI Pigment White 18
Chalk
E333iii
Tricalcium citrate
Products

Found in 1,512 products

Found in 4 products

Search rank & volume
#8158K / mo🇺🇸U.S.
#357300 / mo🇺🇸U.S.
Awareness score

×15.22
over-aware

×5.43
over-aware

Search volume over time

Interest over time for 4 keywords in U.S. during the last 10 years.

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

Popular questions
  1. What is chalk made of?

    Traditional chalk is mostly calcium carbonate (CaCO3), a naturally occurring mineral; some modern blackboard “chalk” sticks may instead use calcium sulfate (gypsum).

  2. What is chalk paint?

    It’s a matte decorative paint that uses calcium carbonate as a white pigment/filler to create a chalky, velvety finish with good coverage and adhesion.

  3. How to make chalk paint?

    Stir calcium carbonate powder into a little water to make a slurry, then mix it into latex/acrylic paint—about 2–3 tablespoons calcium carbonate per 1 cup of paint—adjusting to reach the desired texture and coverage.

  4. Can you eat chalk?

    Food‑grade calcium carbonate (E170i) used in foods and supplements is considered safe at permitted levels, but eating non‑food‑grade chalk sticks isn’t advised and excessive intake can cause constipation or high‑calcium effects.

  5. What is calcium carbonate used for?

    In foods, E170i is used mainly as a white colorant and stabilizer and as a source of calcium; beyond food, it’s common in antacids and as a filler/pigment in tablets, paints, paper, and plastics.

  1. Is tricalcium phosphate the same as calcium citrate?

    No—tricalcium phosphate (E341iii) and tricalcium citrate (E333iii) are different calcium salts; citrate is more soluble and mainly used as a sequestrant/stabilizer and calcium fortificant, while phosphate is often an anti-caking agent and fortificant.

  2. Is tricalcium citrate bad for you?

    No—tricalcium citrate (E333iii) is approved in the EU and generally recognized as safe in the U.S. at typical food levels; excessive calcium from any source can cause GI discomfort or contribute to kidney stones in susceptible people.

  3. What is tricalcium citrate used for?

    It’s used as a sequestrant and stabilizer to control acidity and bind metal ions, helping preserve color and texture, and it’s also used to fortify foods and supplements with calcium.

  4. Which is better calcium citrate vs tricalcium phosphate?

    For calcium supplementation/absorption, calcium citrate is often preferred because it’s more soluble and can be taken with or without food; tricalcium phosphate is less soluble but useful in foods as an anti-caking agent and when added phosphorus is desired.

  5. Which is easier to absorb tricalcium pjosphatw or calcium citrate?

    Calcium citrate is generally easier to absorb than tricalcium phosphate, especially on an empty stomach; phosphate salts are better absorbed when taken with meals.