benzoic acid


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Related to benzoic acid: salicylic acid, Ethyl 4-aminobenzoate

benzoic acid

(bĕnzō`ĭk), C6H5CO2H, crystalline solid organic acid that melts at 122°C; and boils at 249°C;. It is the simplest aromatic carboxylic acid (see aryl grouparyl group
, in chemistry, group of atoms derived from benzene or from a benzene derivative by removing one hydrogen that is bonded to the benzene ring (see radical). The simplest aryl group is phenyl, C6H5 ; it is derived from benzene.
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 and carboxyl groupcarboxyl group
, in chemistry, functional group that consists of a carbon atom joined to an oxygen atom by a double bond and to a hydroxyl group, OH, by a single bond. Carboxylic acids are compounds whose molecules contain a carboxyl group that is joined to a hydrogen atom, an
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). In addition to being synthesized from a variety of organic compounds (e.g., benzyl alcohol, benzaldehyde, toluene, and phthalic acid), it may be obtained from resins, notably gum benzoinbenzoin
or benzoinum
, balsamic resin, the dried exudation from the pierced bark of various species of the benzoin tree (Styrax) native to Sumatra, Java, and Thailand; appearing as red-brown to yellow-brown tears.
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. It is used largely for making its salts and esters, most notably sodium benzoate, which is widely used as a preservative in foods and beverages and as a mild antiseptic in mouthwashes and toothpastes.

Benzoic Acid

 

the simplest aromatic acid, C6H5COOH; it forms clear, lustrous crystals. It was first isolated by sublimation at the beginning of the 17th century from benzoic resin (benzoin gum), hence its name. Its melting point is 122° C. Benzoic acid is readily soluble in organic solvents; it is poorly soluble in water. It sublimates readily and is distilled with steam. Benzoic acid is obtained by the oxidation of toluene with nitric or chromic acid, as well as by the decarboxylation of phthalic acid.

Benzoic acid in the form of complex esters and salts is contained in various natural essential oils—for example, clove oil. In medicine it is used externally in cases of skin diseases as an antiseptic and fungicidal agent; its sodium salt is used as an expectorant. In addition, the sodium salt is used in the preservation of foodstuffs. The esters of benzoic acid (from methyl to amyl), which have a strong odor, are used in the perfume industry. Various derivatives of benzoic acid— for example, chlorobenzoic and nitrobenzoic acids—are used in the synthesis of dyes.

benzoic acid

[ben′zō·ik ′as·əd]
(organic chemistry)
C6H5COOH An aromatic carboxylic acid that melts at 122.4°C, boils at 250°C, and is slightly soluble in water and relatively soluble in alcohol and ether; derivatives are valuable in industry, commerce, and medicine.
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moles of water is still present inside the reaction mixture which could react with the benzaldehyde to form benzoic acid.
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DSP produces benzaldehyde, benzoic acid, benzyl alcohol and sodium benzoate.
DSM Special Products produces benzaldehyde, benzoic acid, benzyl alcohol and sodium benzoate.
It is about 200 times more soluble than benzoic acid.
IRISH supplies of some Dr Pepper soft drinks have been recalled after they was found to contain high levels of benzoic acid which can lead to the formation benzene, a known cancer causing agent.
Not only will it be helped by the fact that the CRINA[R] Poultry has already been on the market for some time, but it will be supported by all the work DSM has already undertaken in the field of pig husbandry ever since the 2003 launch of VevoVitall[R] (the company's flagship benzoic acid product for pigs).