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4-Chlorophenol (4-Chlorophenol)

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4-Chlorophenol

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p-Chlorophenol
parachlorophenol
4-Hydroxychlorobenzene
Phenol,p-chloro
Parachlorophenol
Phenol,4-chloro
Applied 3-78
Phenol, 4-chloro-
4-Cl-phenol
p-monochlorophenol
p-Cl-C6H4-OH
p-Chlorophenic acid
4-Chlorophenol
4-chloro-phenol
4-Monochlorophenol

+Expand -Stow

106-48-9

C6H5ClO

128.556

2908191000

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Product Description

p-chlorophenol, also known as 4-chlorophenol, is an organic compound with the chemical formula C ₆ H ₅ ClO. It is a white crystalline powder, slightly soluble in water, easily soluble in ethanol, ether, chloroform, and benzene. Used as medicine, pesticide, organic synthesis intermediates.

Hazardous Chemicals Business License:
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Nature Description

White needle crystal with unpleasant odor. Melting point 42-43 °c, boiling point 217 °c, 125 °c (2.4kPa), relative density 1.2278, refractive index 1.5571(40℃). Soluble in ethanol, ether, benzene, glycerol and caustic solution, slightly soluble in water.

1.306

220oC

41-45oC

121oC

2.7G/100ML(20oC)

Product Applications

Used as an intermediate in the synthesis of dyes and drugs.

Production method

This product has many manufacturing methods, mainly including the following: 1. The phenol direct chlorination method uses phenol as raw material. According to the difference between the chlorinating agent and solvent used, it can be divided into the following three methods:(1) after heating and melting the phenol by thionyl chloride method, it can be cooled to 40℃, slowly add thionyl chloride, about 40-45min to finish, then stir for 4 hours, heat up to 30-40 ℃ for 4 hours, 40-45 ℃ for 4 hours, the reaction tail gas is absorbed by alkali solution, after the reaction is cooled to room temperature, water, 10 sodium carbonate solution and water were washed successively, distilled under reduced pressure, and the fraction 110-115 ℃(2.67kPa) was collected to obtain p-chlorophenol. The yield of p-chlorophenol by this method is relatively high, reaching 70-75. At the same time, 25-30 byproduct O-chlorophenol is generated. Each ton of p-chlorophenol consumes about 1000kg of phenol and 2,000kg of thionyl chloride. (2) benzene solvent method uses benzene as solvent, chlorine as chlorinating agent, and directly chlorinate phenol to obtain this product. (3) solvent-free chlorination uses iron, bromine, etc. as catalysts to pass chlorine into molten phenol, A chlorophenol is produced by direct chlorination. After washing, the reaction solution is distilled under reduced pressure to collect the fraction with the content of p-chlorophenol ≥ 95. The calculated rate of phenol (total of adjacent and Para) is ≥ 95, the calculated rate of chlorine is 95, the ratio of right and adjacent is 3-4, and the product content is ≥ 98 raw material consumption quota: phenol 0.77t/t; chlorine 0.58t/t. By-product hydrogen chloride 0.28t/t. 2. The hydrolysis of p-chlorobenzene is prepared by using p-dichlorobenzene as raw material and water or alcohol or benzene as solvent. 3. Chloride solution of O-, p-chlorophenol and 2, 4-dichlorophenol mixed by chlorination of sodium phenol. Vacuum distillation, collect 85-132℃(2.0kPa) high boiling point fraction, and cool it below 10℃, then p-chlorophenol is precipitated, and the separation is obtained. The yield is about 25. 4. It is obtained by p-aminophenol through diazotization and copper (I) chloride replacement. 5. It is obtained by diazotization, hydrolysis and elimination of p-chloroaniline.

Security

Dangerous Goods Marking： N

Safety instructions： S61: avoid discharging to the environment. Refer to the specific instructions/safety data sheet.

Hazardous material category code： R20/21/22: inhalation, skin contact and accidental swallowing are harmful. R51/53: toxic to aquatic organisms, which may lead to long-term adverse effects on aquatic environment.

Dangerous goods transportation number： UN2904/2905/2020

Symbols： GHS07,GHS09

Storage conditions： The warehouse is ventilated cryodrying and stored separately from oxidant and food additives.

Cautionary Statement： P273;P280

Packaging grade： III

Signal word： Warning

Hazard Statement： H302;H312;H332;H411