What is the difference between sodium benzoate and potassium benzoate?
Potassium benzoate is used in carbonated drinks, such as waters and sodas, diet and regular. Sodium benzoate is more widely used than potassium benzoate. However, when sodium content needs to be reduced, potassium benzoate is usually the substitute.
Is potassium benzoate soluble?
Potassium benzoate
| Names | |
|---|---|
| Solubility in water | 69.87 g/100 mL (17.5 °C) 73.83 g/100 mL (25 °C) 79 g/100 mL (33.3 °C) 88.33 g/100 mL (50 °C) |
| Solubility in other solvents | Soluble in ethanol Slightly soluble in methanol Insoluble in ether |
| Hazards | |
| S-phrases (outdated) | S22 – S24/25 |
What is the solubility of sodium benzoate?
Sodium benzoate (CAS No. 532-32-1 ; C7H5O2Na; benzoic acid, sodium salt [E 211 (EU No. Regulation on Labelling of Foodstuffs)]; molecular weight 144.11) has a melting point above 300°C. It is very soluble in water (550-630 g/litre at 20°C) and is hygroscopic at a relative humidity above 50%.
Are potassium and potassium benzoate the same thing?
Potassium salts are typically extracted from salt beds or certain minerals. Potassium benzoate is used as a preservative, as it prevents the growth of bacteria, yeast, and particularly mold.
Is C12 15 alkyl benzoate harmful?
At concentrations used in cosmetic products, C12-15 alkyl benzoate and other long-chain alkyl benzoates are not an eye or skin irritant. Overall, the Expert Panel concluded that C12-15 alkyl benzoate and other alkyl benzoates are safe for use in cosmetics.
Why is sodium benzoate solubility in water?
Sodium benzoate is supplied as a white powder or flake. During use, it is mixed dry in bulk liquids where it promptly dissolves. Approximately 1.75 oz (50 g) will readily dissolve in 3 fl oz (100 ml) of water. When placed in water, sodium benzoate dissociates to form sodium ions and benzoic acid ions.
Why is sodium benzoate more soluble in water?
Yes, Sodium Benzoate will be more soluble in water because sodium benzoate is more polar than benzoic acid. Water is a polar molecule.
What makes sodium benzoate soluble in water?
Benzotrichloride is formed by the reaction of chlorine and toluene. In all cases, the benzoic acid is further refined to produce sodium benzoate. One way this is done is by dissolving the acid in a sodium hydroxide solution . The resulting chemical reaction produces sodium benzoate and water.
What is the solubility of sodium benzoate in water?
Sodium benzoate is highly soluble in water (66 g/100 mL at 20 °C).
What is the difference between benzoic acid and sodium benzoate?
Sodium benzoate converts to benzoic acid when use in acidic mixtures. Benzoic acid has good anti-microbial features, but does not dissolve well in water, whereas sodium benzoate dissolves very well in water.
What foods have benzoic acid?
Benzoic acid (C7H6O2) is a colorless crystalline copound. It is one of the benzoates, which also includes sodium benzoate and potassium benzoate. Among the foods in which benzoic acid occurs naturally are cranberries, prunes, plums, cinnamon, ripe cloves, and most berries.
What is the pKa of sodium benzoate?
The pKa of benzoic acid is 4.2. Sodium benzoate is most effective in acidified foods with pH 2.5–4.2.3 This pH level is lower than that of sorbic acid and propionic acid.
What is the structure of sodium benzoate?
Sodium benzoate is the sodium salt of benzoic acid. It is an aromatic compound denoted by the chemical formula C 7H 5NaO 2 with a molecular weight of 144.11. In its refined form, sodium benzoate is a white, odorless compound that has a sweet, astringent taste, and is soluble in water.