Benzoic acid│65-85-0
Product Description:
The molecular formula of benzoic acid is C6H5COOH, carboxyl group directly connected with the benzene ring carbon atom the simplest aromatic acid, is a benzene ring hydrogen is replaced by a carboxyl group (-COOH) formed compound. It is colorless and odorless flake crystal. The melting point is 122.13℃, the boiling point is 249℃, and the relative density is 1.2659 (15/4 ℃). At 100℃ rapid sublimation, its vapor has a strong irritation, easy to cause cough after inhalation. Slightly soluble in water, soluble in ethanol, ether, chloroform, benzene, toluene, carbon disulfide, carbon tetrachloride and pine Chemicalbook and other organic solvents. Widely occurring in nature in the form of free acids, esters or their derivatives, for example, in the form of free acids and benzyl esters in benzoin gum; It occurs free in the leaves and stem skins of some plants; Exists as methyl ester or benzyl ester in essential oils; It is present in horse urine in the form of its derivative hippuric acid. Benzoic acid is a weak acid, stronger than fatty acids. Their chemical properties are similar, can form salt, ester, acyl halide, amide, acid anhydride, etc., are not easy to be oxidized. Electrophilic substitution reactions can occur on the benzene ring of benzoic acid, mainly resulting in metamorphotic substitution.
Application:
Benzoic acid is usually used as a drug or preservative, has the effect of inhibiting the growth of fungi, bacteria, mold, and is usually applied to the skin for medicinal purposes to treat ringworm skin diseases. Used in synthetic fiber, resin, paint, rubber, tobacco industry. Benzoic acid was originally obtained by the distillation of benzoin gum or the hydrolysis of alkali water to Chemicalbook, and can also be obtained by the hydrolysis of hippuric acid. Commercially, benzoic acid is prepared by oxidizing toluene with air in the presence of cobalt, manganese and other catalysts. Or made from aqueous decarboxylation of phthalic anhydride. Benzoic acid and its sodium salt can be used as antibacterial agents in latex, toothpaste, jam or other foods, and can also be used as a mordant for dyeing and printing color.
Package: 25 kg/bag or as you request.
Storage: 2-8°C
Executive Standards: International Standard.
Product Specification:
| Molecular Weight | 122.12 |
| Boiling point | 249 °C(lit.) |
| Melting point | 121-125 °C(lit.) |
| Density | 1.08 g/cm3 at 25 °C(lit.) |
| Purity | ≥99% |
| Acidity coefficient (pKa) | 4.19(at 25℃) |
| Soluble | Soluble, transparent, colorless (95% ethanol, 1gm/3mL) |
| Water solubility | Slightly soluble. 0.34 g/100 mL |
| Color | Colorless to orange to green |
| PH | White to yellow - Beige to orange |
