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What is the purpose of toluene for toluene?

2021-04-25

Toluene is a colorless, volatile liquid with a special aroma. Toluene is a member of aromatic hydrocarbons. Many of its properties are similar to those of benzene. It is often used as an organic solvent instead of the rather toxic benzene. It is also a common chemical raw material and can be used to make explosives, pesticides, benzoic acid, Dyes, synthetic resins and polyesters. At the same time it is also a component of gasoline. What is toluene ? What is the use of toluene?

basic introduction

Toluene (English: Toluene, Molecular Formula: C?H?) is a colorless, volatile liquid with a special aroma. Toluene is a member of aromatic hydrocarbons. Many of its properties are similar to those of benzene. It is often used as an organic solvent instead of the rather toxic benzene in practical applications. It is also a common chemical raw material that can be used to make explosives. Pesticides, benzoic acid, dyes, synthetic resins, polyesters, etc. At the same time it is also one of the components of gasoline.

Basic use

Toluene is widely used as a solvent and a high octane gasoline additive, and is also an important raw material for Organic Chemicals. However, compared with benzene and xylene obtained from coal and petroleum at the same time, the current production is relatively surplus. Therefore, a considerable amount of toluene is used to remove toluene. Alkyl to benzene or deuterated xylene. Toluene-derived series of intermediates, widely used in dyes; medicine; pesticides; explosives; auxiliaries; perfumery and other Fine Chemicals production, but also for the synthetic materials industry. Side-chain chlorination of toluene by monochlorobenzyl; dichlorobenzyl and trichlorobenzyl, including their derivatives benzyl alcohol; benzaldehyde and benzoyl chloride (generally also obtained from the phosgenation of benzoic acid), in medicine; pesticides Dyes, especially fragrances, are widely used in the synthesis. The cyclochlorinated products of toluene are pesticides; pharmaceuticals; dye intermediates. The oxidation of toluene to benzoic acid is an important food preservative (mainly using its sodium salt) and is also used as an intermediate in organic synthesis. Intermediates obtained by sulfonation of toluene and benzene derivatives, including p-toluenesulfonic acid and its sodium salt; CLT acid; toluene-2,4-disulfonic acid; benzaldehyde-2,4-disulfonic acid; Acyl chloride, etc., used in detergent additives, fertilizer anti-caking additives, organic pigments, pharmaceuticals, dye production. Nitration of toluene produces a large number of intermediates. Many final products can be derived, among which polyurethane products; dyes and organic pigments; rubber chemicals; medicines; explosives, etc. are the most important.

Precautions

Risk Overview

Health hazards: Irritation to the skin and mucous membranes, anesthetic effects on the central nervous system.

Acute poisoning: Inhalation of a higher concentration of the product in a short time can cause significant irritation of the eyes and upper respiratory tract, conjunctival and pharyngeal hyperemia, dizziness, headache, nausea, vomiting, chest tightness, weakness in the extremities, paralysis in gait, and confusion. Severe persons may have restlessness, convulsions, and coma.

Chronic poisoning: Long-term exposure can occur with neurasthenia syndrome, hepatomegaly, and abnormal menstruation among female workers. Dry skin, chapped, dermatitis.

Environmental hazards: Serious damage to the environment, pollution of the air, water environment, and water sources.

Explosion hazard: The product is flammable and irritating.

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