Sodium benzoate

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Description

Or E211

Molecular formula: C6H5COONa

Density: 1.44 grcm3

Molecule mass: 144.1 grmol

Solubility in water: For 100 grams of water, we use 66 grams of benzoate

Sodium benzoate is a chemical compound with the formula C6H5COONa, which is the sodium salt of benzoic acid.

It is an odorless compound that breaks down by heating.

Sodium benzoate is prepared from the reaction of modified benzoic acid with sodium hydroxide.

C6H5-COOH + NaOH → C6H5-COO -Na + + H2O

It is used in food products as a preservative in an acidic environment until it leads to the formation of benzoic acid, which is due to its effectiveness in stopping the growth of bacteria.

The benzoic acid is absorbed inside the living cells of the bacteria and if the pH value inside the cells is five or less (acidic medium). It reduces the anaerobic fermentation of glucose by the enzyme phosphofructokinase by 95%.

Benzoates are commonly used in drinks such as soft drinks and juice drinks that are acidic.

And pickles and sauce, and can be used as a preservative in cosmetics and medicines.

Under acidic liquids and substances, sodium benzoate inhibits the growth of bacteria, mold, and yeast, thus increasing the shelf life of food products.

The Food and Drug Administration set the percentage of sodium benzoate in foods as 0.025%, 0.05%, or 0.1%.

When sodium benzoate combines with ascorbic acid, vitamin C can be a long-term carcinogen.

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