Chlorobenzene CAS 108-90-7 Chlorobenzene Mono Chloro Benzene

Place of Origin: Shandong,China (Mainland)
Brand Name: MOSINTER
CAS No.: 108-90-7
Molecular formula: C6H5Cl
Molecular weight: 112.56
Melting Point: -45 °C
Density: 1.1075
Vapour pressure: 11.8 mm Hg ( 25 °C)
Refractive index: n20/D 1.524(lit.)
Vapour density: 3.86 (vs air)
Storage condition: 0-6°C
Flashing point: 75 °F
Soluble: 0.4 g/L (20 ºC)

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Product Description

Payment & Shipping Terms Supply Capacity
Payment Terms:L/C, T/T, WUProduction Capacity:4000 Ton/Year
Min. Order:100 KilogramPacking:According to the...
Means of Transport:Ocean, Air, LandDelivery Date:within 7 days

Mono Chloro Benzene(CAS: 108-90-7)


Item

Index

Appearance

Colorless, transparentvolatile liquid

Odor

Almond odor

Boiling Point 

132.2℃

Freezing Point 

-45.6℃

Relative Density 

1.1004

Refractive Index 

1.5248

Flash Point

28℃

Chlorobenzene is an aromatic organic compound with the chemical formula C6H5Cl. This colorless, flammable liquid is a common solvent and a widely used intermediate in the manufacture of other chemicals.


Uses

Chlorobenzene once was used in the manufacture of certain pesticides, most notably DDT by reaction with chloral (trichloroacetaldehyde), but this application has declined with the diminished use of DDT. At one time, chlorobenzene was the main precursor for the manufacture of phenol:

C6H5Cl + NaOH → C6H5OH + NaCl

The major use of chlorobenzene is as an intermediate in the production of commodities such as herbicides, dyestuffs, and rubber. Chlorobenzene is also used as a high-boiling solvent in many industrial applications as well as in the laboratory.  Chlorobenzene is nitrated on a large scale to give a mixture of 2- and 4-nitrochlorobenzenes, which can be separated by fractional crystallization followed by distillation. 2-Nitrochlorobenzene (CAS#88-73-3) is converted to related 2-nitrophenol, 2-nitroanisole, bis(2-nitrophenyl)disulfide, and 2-nitroaniline by nucleophilic displacement of the chloride with sodium hydroxide, sodium methoxide, sodium disulfide and ammonia. The conversion of the 4-nitrochlorobenzene (CAS#100-00-5) are similar.

Production

Chlorobenzene was first described in 1851. Presently it is manufactured by chlorination of benzene in the presence of a catalytic amount of Lewis acidsuch as ferric chloride, sulfur dichloride, and anhydrous aluminium chloride:

Chlorobenzene (CAS: 108-90-7) Chlorobenzene; Mono Chloro Benzene;

The catalyst enhances the electrophilicity of the chlorine. Because chlorine is electronegative, C6H5Cl exhibits somewhat decreased susceptibility to further chlorination. Industrially the reaction is conducted as a continuous process to minimize the formation of dichlorobenzenes.


Biodegradation

Rhodococcus phenolicus is a bacterium species able to degrade chlorobenzene as sole carbon sources.


Safety

Chlorobenzene exhibits "low to moderate" toxicity as indicated by its LD50 of 2.9 g/kg. The Occupational Safety and Health Administration has set apermissible exposure limit at 75 ppm (350 mg/m3) over an eight hour time-weighted average for workers handling chlorobenzene.


Toxicology

Chlorobenzene is not a naturally occurring compound, but because of its manufacture, can persist in soil for several months, in air for about 3.5 days, and in water for less than one day. Humans may be exposed to this agent via breathing contaminated air (primarily via occupational exposure), eating contaminated food or water, or by coming into contact with contaminated soil (typically near hazardous waste sites). However, because it has only been found at 97 out of 1,177 NPL hazardous waste sites, it is not considered a widespread environmental contaminant.

Upon entering the body, typically via contaminated air, chlorobenzene is excreted both via the lungs and the urinary system.

Category: Other Chemical Products


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