benzoic acid

benzoic acid的音标为[bɪ"zɑːɪkəs] ，基本翻译为“苯甲酸”，速记技巧为“苯基+羧基=苯甲酸”。

Benzene, a six-carbon ring hydrocarbon, is the basis for the name of benzoic acid. The name "benzoic" comes from the Greek word "betaμζωκός" (bēnzōkós), meaning "I burn" or "I dissolve," referring to the burning sensation that benzoic acid gives to the skin when it comes into contact with it.

The chemical compound benzoic acid has undergone numerous changes throughout its history. It was first isolated in 1874 by German chemist Justus von Liebig and was initially named "benzoyl acid." Over time, it was renamed "benzoic acid" to reflect its chemical structure, which includes a benzene ring attached to an acidic carbon chain.

Benzene and benzoic acid are closely related, with benzoic acid being a derivative of benzene. The chemical compound benzoin, which is used in incense and flavorings, is also derived from benzoic acid.

Benzene and benzoic acid have numerous related words, including:

1. benzene - the hydrocarbon from which benzoic acid is derived

2. benzoin - a resin used in incense and flavorings

3. benzoate - a salt or ester of benzoic acid

4. benzoxazine - a compound containing a benzene ring and an oxazine ring

5. benzothiazine - a compound containing a benzene ring and a thiazine ring

6. benzenoid - a group of aromatic compounds containing a benzene ring

7. benzenesulfonate - a salt or ester of benzenesulfonic acid

8. benzylic - referring to a carbon atom attached to a benzene ring

9. benzylic alcohol - an alcohol containing a benzyl group

10. benzylic ether - an ether containing a benzyl group

Benzene and benzoic acid are also related to words describing aromatic or flammable substances, such as "benzol" (a term used in the United States for gasoline) and "benzene-like" (referring to substances with a benzene-like aromatic structure).

常用短语：

1. benzoic acid solution

2. benzoic acid salts

3. benzoic acid esters

4. benzoic acid derivatives

5. benzoic acid esters of alcohols

6. benzoic acid esters of carboxylic acids

7. benzoic acid salts of amino acids

例句：

1. The benzoic acid is used to treat infections and ulcers.

2. The benzoic acid salt is used as a food preservative.

3. The benzoic acid esters are used as a plasticizer.

4. The benzoic acid derivatives are used in the production of dyes and pigments.

5. The benzoic acid esters of alcohols are used in the production of rubber.

6. The benzoic acid salts are used in the production of pharmaceuticals and cosmetics.

7. Benzoic acid is also used in the production of polymers and resins.

英文小作文：

Benzene carboxylic acid is a very important chemical compound that is used in various industries. It is used in the production of polymers, resins, dyes, pigments, pharmaceuticals, cosmetics, and food preservatives. It is also used in the treatment of infections and ulcers, and as a plasticizer for various materials. In addition, benzoic acid esters are used in the production of rubber, and benzoic acid salts are used in the production of pharmaceuticals and cosmetics. The chemical properties of benzoic acid make it a versatile compound that can be used in various ways to meet different needs in different industries.