| Customization: | Available |
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| CAS No.: | 141-82-2 |
| Formula: | C3h4o4 |
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1. Basic concepts of malonic acid and sodium propionate
Malonic acid, also known as succinic acid, is an organic compound with a chemical formula of C4H6O4. It is a white crystalline powder that is soluble in water and alcohols and is commonly found in wine and beer. Malonic acid is an organic acid that is acidic and can react with metal ions or bases to form salts.
Sodium propionate, with a chemical formula of C3H3NaO2, is an inorganic salt and the sodium salt of propionic acid. It is a colorless crystal or white powder that is easily soluble in water and is commonly used in the manufacture of food, medicines, and cosmetics.
2. The difference between malonic acid and sodium propionate
1. Different properties
Malonic acid is an organic acid that contains a carboxyl group and is acidic. It is often used in the food industry as an acidulant. Malonic acid and its sodium salt, sodium propionate, have different physical and chemical properties. Malonic acid is weakly acidic, soluble in water, alcohols, and ethers. It is more likely to absorb moisture in the air and is easily decomposed and releases carbon dioxide. Sodium propionate is a salt whose aqueous solution is alkaline and can be used to neutralize and stabilize the pH value of food and cosmetics.
2. Different uses
Malonate and sodium propionate have different uses in daily life. Malonic acid is often used as a food additive, such as bread, biscuits, candy and beverages, which can increase acidity and taste and promote food preservation. Sodium propionate is mainly used in the manufacture of food, medicine and cosmetics. Sodium propionate can also be used for dehumidification, dehydration, pickling and paint drying.
3. Different structures
Malonate is an organic compound with two carboxylic acid groups in its structure; sodium propionate is an inorganic salt consisting of a propionic acid molecule and a sodium ion.
| Melting point | 132-135 °C (dec.) (lit.) |
| Boiling point | 140ºC |
| density | 1.619 g/cm3 at 25 °C |
| refractive index | 1.4780 |
| Fp | 157°C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 1 M NaOH: soluble100mg/mL, clear to slightly hazy, colorless to faintly yellow |
| pka | 2.83(at 25ºC) |
| form | Liquid |
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