Benzoic acid powder Raw Materials CAS 65-85-0

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Uses and synthesis of Benzoic acid powder

Benzoic acid powder, also known as benzoic acid, molecular formula for C6H5COOH, carboxylic acid directly connected to the carbon atom of the benzene ring of the simplest aromatic acid, is a hydrogen on the benzene ring by the carboxylic acid (-COOH) instead of the formation of compounds.Benzoic acid CAS 65-85-0 is colorless, odorless flaky crystals. Melting point 122.13℃, boiling point 249℃, relative density 1.2659 (15/4℃).

Rapid sublimation at 100 ℃, Benzoic acid Raw Materials vapor has a strong irritation, easy to cause cough after inhalation. Slightly soluble in water, easily soluble in ethanol, ether, chloroform, benzene, toluene, carbon disulfide, carbon tetrachloride and turpentine and other organic solvents.Benzoic acid CAS 65-85-0 in the form of free acid, ester or its derivatives are widely existed in nature, for example, in the form of free acid and benzyl ester within the benzoin gum;

It exists in the form of free in the leaves and stem bark of some plants; in the form of methyl or benzyl ester in essential oils; and in the form of its derivative equine uric acid in horse urine.Benzoic acid CAS 65-85-0 is a weak acid, stronger than fatty acids.

Their chemical properties are similar, can form salt, ester, acyl halide, amide, anhydride, etc., are not easy to be oxidized.Benzoic acid powder on the benzene ring can be electrophilic substitution reaction, mainly to get the meso substitution production.

Applications / Functions of Benzoic acid powder

• Benzoic acid powder is an important acid food preservative.
• Benzoic acid Raw Materials is an important acid-type feed preservative. Under acidic condition, it has inhibitory effect on molds, yeasts and bacteria, but its effect on acid-producing bacteria is weaker. The optimum PH for bacterial inhibition is 2.5-4.0, and generally lower than PH4.5-5.0 is preferred.
• Benzoic acid CAS 65-85-0 is mainly used for antifungal and disinfection antiseptic, also used as anti-microbial agent. Because of the small solubility of benzoic acid, it must be stirred thoroughly when used, or dissolved in a small amount of hot water or ethanol. When used in concentrated fruit juice for refreshing drinks, Benzoic acid CAS 65-85-0 is easy to volatilize with water vapor, so its sodium salt is often used. 1g of sodium salt is equivalent to 0.847g of benzoic acid.

Benzoic acid powder is usually used as a fragrance fixer or preservative.Benzoic acid powder is also used as an aroma-retaining agent for fruit juice drinks. Benzoic acid powder is also used as a fragrance preservative for fruit juice drinks. It can be used as a paste fragrance for lavender flavor. It can also be used in chocolate, lemon, orange, berries, nuts, candied fruit and other edible flavors. It is also commonly used in cigarette flavors.

Benzoic acid powder is used in the production of pharmaceuticals, dyestuff carriers, plasticizers, spices and food preservatives, etc. It is also used to improve the performance of alkyd resin coatings; it is used as an intermediate in pharmaceuticals and dyestuffs, and is used to produce plasticizers and spices, etc. It is also used as an antirust agent for steel equipment.

Physicochemical Property of Benzoic acid powder

Scalar or needle-like crystal.Benzoic acid Raw Materials Has the odor of benzene or formaldehyde. Slightly soluble in water, soluble in ethanol, methanol, ether, chloroform, benzene, toluene, carbon disulfide, carbon tetrachloride and turpentine.

Production methodprocess of Benzoic acid powder

1. Benzoic acid Raw Materials is obtained by direct liquid phase oxidation of toluene.
2. Benzoic acid powder is obtained by decarboxylating phthalic acid with lead oxide and zinc oxide as catalysts.
3. Benzoic acid CAS 65-85-0 is obtained by chlorination of toluene to trichloromethylbenzene and hydrolysis with lime milk and iron powder.

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