Comparing E170I - Calcium carbonate vs E504II - Magnesium hydroxide carbonate
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Popular questions
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).
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.
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.
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.
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.
550 mg of calcium carbonate and 110 mg of magnesium hydroxide what is the total of moles?
CaCO3 ≈ 0.0055 mol and Mg(OH)2 ≈ 0.0019 mol, for a total of about 0.0074 mol; note E504ii is magnesium hydroxide carbonate (a different compound).
Bone contains living cells and organic matter such as collagen, protein, and polysaccharides. however, much of the volume of bone is made up of minerals, which may comprise as much as 65% of bone mass. calcium and phosphate are the most common minerals, with calcium in the form of hydroxyapatite [ca₁₀(po₄)₆(oh)₂] and calcium carbonate [caco₃]. magnesium hydroxide, fluoride, and sulfate may also be present. where do you think the body gets the needed minerals?
Primarily from the diet and drinking water; small amounts may also come from permitted food additives and fortificants, including magnesium salts such as E504ii (basic magnesium carbonate) when used in foods.
Calcium carbonate or magnesium hydroxide a stronger base when treated with hci?
Magnesium hydroxide is the stronger base and neutralizes more HCl per gram; E504ii (basic magnesium carbonate) is milder, with neutralizing strength between carbonate and hydroxide forms.
Calcium carbonate vs magnesium hydroxide which is a stronger base?
Magnesium hydroxide is stronger; hydroxide is a stronger base than carbonate and provides higher acid-neutralizing capacity per gram.
How does calcium carbonate differ from magnesium hydroxide?
Calcium carbonate is a carbonate salt that reacts with acid to release CO2 and is a weaker base per gram, while magnesium hydroxide is a hydroxide that forms water and salts without CO2 and is a stronger base; E504ii is basic magnesium carbonate, a related magnesium salt used mainly as a carrier in foods.