About sodium benzoate:
Sodium benzoate, also known as sodium benzoate, is an organic substance with a chemical formula of C7H5NaO2. It is a white particle or crystalline powder. It is odorless or has a slight benzoin smell. It tastes slightly sweet and has astringent taste. The relative molecular mass is 144.12. It is stable in the air and easily soluble in water. Its aqueous solution has a pH of 8, which is soluble in ethanol.
Benzoic acid and its salts are broad-spectrum antimicrobial agents, but its antibacterial effectiveness depends on the pH of the food. As the acidity of the medium increases, its bactericidal and antibacterial effects increase, but it loses its bactericidal and antibacterial effects in alkaline media. The optimal pH value for anticorrosion is 2.5~4.0
English name: Sodium benzoate
Alias: Sodium Benzoate
Chemical formula :C7H5NaO2
Molecular weight :144.12
CAS: 532-32-1 EINECS: 208-534-8
Melting point: 436 ℃
Water solubility: easily soluble
Density: 1.44 g/cm³
Appearance: white crystalline powder
1. Mainly used as food preservatives, but also used to make medicines, dyes, etc.
2. Used in the pharmaceutical industry and plant genetic research, as well as dye intermediates, fungicides and preservatives
3. Preservatives; antimicrobial agents.
4. Sodium benzoate is also an important acid type food preservative. When used, it is converted into an effective form of benzoic acid. Refer to benzoic acid for use range and dosage. In addition, it can also be used as a feed preservative.
5. The product is used as a food additive (preservative), a fungicide in the pharmaceutical industry, a mordant in the dye industry, a plasticizer in the plastic industry, and an intermediate in organic synthesis such as spices.
6. Used as a co-solvent for serum bilirubin test, food additives (preservatives), fungicides in the pharmaceutical industry, mordants in the dye industry, plasticizers in the plastics industry, and as intermediates in organic synthesis such as spices.
Benzoic acid is prepared from toluene in the presence of cobalt naphthenate catalyst by air oxidation, then benzoic acid is used as raw material, neutralized with sodium bicarbonate, decolorized with activated carbon, and then filtered, dried and crushed to obtain the product.
Quality standard: refer to the quality index of sodium benzoate specified in the national standard GB 1902-94
Related substance: Benzoic acid
Chemical formula: C6H5COOH
Benzoic acid, also known as benzoic acid, is odorless or has a slight benzoin odor. It is widely used as a food preservative. It naturally exists in cranberries, prunes, cinnamon, and cloves. It is an aromatic acid and can also be added as a spice. The undissociated acid has antibacterial activity, and the best activity is in the pH range of 2.5-4.0. Toxicological basis: oral administration of LD rats 2530mg·kg-1 (bw) 50GRAS FDA-21CFR 184.1021ADI 0-5mg·kg-1 (bw) (the total amount of benzoic acid and its salts, calculated as benzoic acid)
Benzoic acid preservatives act on their undissociated molecules. Undissociated benzoic acid is highly lipophilic and easily passes through the cell membrane and enters the cell. It interferes with the permeability of the cell membrane of microorganisms such as molds and bacteria, and prevents the cell membrane from amino acids. It absorbs and enters the benzoic acid molecule in the cell, acidifies the alkali storage in the cell, inhibits the activity of the respiratory enzyme system in the microbial cell, and plays a preservative effect.
Benzoic acid is a broad-spectrum antimicrobial agent, which has a good effect on yeasts, molds, and some bacteria. It has an inhibitory effect on various bacteria within the maximum allowable range and pH value below 4.5.
Application and limit: As preservatives, benzoic acid and sodium benzoate are widely used in food processing and preservation, and they are used in limited quantities in some foods in some countries. Since benzoic acid can play a role in the free state in foods, it has a better effect in strong acid foods. Benzoic acid is generally used in carbonated beverages, soy sauce, sauces, preserves, fruit and vegetable drinks, etc. Benzoic acid can be used together with p-hydroxybenzoic acid esters in soy sauce and beverages for synergistic effect. Benzoic acid and sodium benzoate are commonly used to preserve highly acidic fruits, jams, beverage syrups and other acidic foods. They can be used in combination with low-temperature sterilization and have a synergistic effect .
Benzoic acid and sodium benzoate are generally limited to foods with high protein content. Sodium benzoate has the same effect on microorganisms as benzoic acid, but because it is a sodium salt, to achieve the same bactericidal effect as benzoic acid, the required dosage is 1.2 times that of benzoic acid .
About Bailin Group:
We,Bailin Group Co.,Ltd is a leading Food Preservative manufacturer and supplier in China , the main product is Sodium benzoate ,The annual output of sodium benzoate is more than 20,000 tons,which is the largest factory in the northeast China region.contact us if you looking for a reliable Sodium benzoate factory.just send your inquiry in below form,will reply within 24hours.