Comparing E524 - Sodium hydroxide vs E530 - Magnesium oxide

Synonyms
E524
Sodium hydroxide
Caustic soda
E530
Magnesium oxide
magnesia
Products

Found in 393 products

Found in 40 products

Search rank & volume
#5258K / mo🇺🇸U.S.
#1797.1K / mo🇺🇸U.S.
Awareness score

×21.32
over-aware

×315.30
over-aware

Search volume over time

Interest over time for 3 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 sodium hydroxide used for?

    In foods, E524 (sodium hydroxide/lye) is used as a pH regulator and processing aid—for peeling fruits and vegetables, curing olives, Dutch-processing cocoa, and creating the characteristic crust on pretzels and some noodles. Outside food, it’s widely used in soapmaking, cleaning, and pulp and paper production.

  2. Is sodium hydroxide a base?

    Yes—it's a very strong base (alkali) with a high pH and is highly caustic; in foods it's used only in small, controlled amounts.

  3. What is the chemical formula for sodium hydroxide?

    NaOH.

  4. What is the formula for sodium hydroxide?

    NaOH (composed of sodium cations, Na+, and hydroxide anions, OH−).

  5. How to make sodium hydroxide?

    Industrial sodium hydroxide is produced by the chlor-alkali process (electrolysis of brine), yielding NaOH, chlorine, and hydrogen. Do not attempt to make it yourself; for any food use, only purchase certified food‑grade lye.

  1. What is magnesium oxide good for?

    In foods, E530 is good for keeping powders free‑flowing (anti‑caking) and helping control acidity/alkalinity (pH); it may also serve as a source of magnesium in fortification.

  2. What is magnesium oxide used for?

    As a food additive it’s used in products like table salt, spices, cocoa, and drink or baking mixes to prevent clumping and to adjust pH; it can also supply magnesium in some fortified foods.

  3. What is magnesium oxide 400 mg used for?

    That tablet dose is a dietary supplement, not a food‑additive use; 400 mg MgO provides about 240 mg elemental magnesium and is used to address low magnesium or as an antacid/laxative, though it’s relatively poorly absorbed and can cause diarrhea at high doses.

  4. Is magnesium oxide good for you?

    At the small amounts used in foods, it’s considered safe (permitted in the EU as E530 and GRAS in the U.S.); as a supplement it can help correct deficiency but has lower bioavailability than some forms and high doses may upset the stomach or cause diarrhea.

  5. What does magnesium oxide do?

    In foods it prevents caking and helps stabilize pH, and can contribute magnesium for fortification.