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4-Chlorophenol (4-Chlorophenol)

Bargaining 10-21 09:11 Update

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4-Chlorophenol

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Inquiry
  • 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

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.

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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) 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

N

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

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.

UN2904/2905/2020

GHS07,GHS09

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

P273;P280

III

Warning

H302;H312;H332;H411

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