ChemicalBook CAS DataBase List Trichloroethylene

Trichloroethylene synthesis

12synthesis methods

Product Name:Trichloroethylene
CAS Number:79-01-6
Molecular formula:C2HCl3
Molecular Weight:131.39

TCE has been in commercial use for almost 60 years. TCE has been used as a solvent because of its powerful ability to dissolve fats, greases, and waxes. It has been widely used in the dry cleaning industry and as a metal degreaser and in the electronic components industry where workers have been observed using it as a cleaning solvent without any protective equipment, thus allowing uncontrolled skin contact and inhalation exposures.

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Yield:-

Reaction Conditions:

Stage #1: 1,1,1-trifluoro-2-chloroethanewith hydrogen fluoride;oxygen at 380; under 760.051 Torr;Inert atmosphere;
Stage #2: with hydrogenchloride at 380; under 760.051 Torr;

Steps:

4.2. Catalytic measurements and analysis

The transformation of CF3CH2Cl was carried out under atmospheric pressure in a fixed bed reactor at 380 °C. All the reactants were diluted in helium. The flow rate of CF3CH2Cl was regulated at 50 8C (to avoid any condensation) by a Brooks mass flowmeter. The helium, O2 and HCl feeds were regulated at room temperature by a Brooks mass flowmeter. The catalyst (sieved to a diameter between 0.250 mm and 0.315 mm) was mixed with 6 cm3 of Lonza graphite. When the reaction products emerged from the reactor they were washed successively in two flasks containing water and then in one containing potassium hydroxide (1 M) to neutralize the unreacted hydrogen fluoride and HCl produced by Cl/F exchanges. They were then dried on a 4 ? molecular sieve.

References:

Loustaunau;Fayolle-Romelaer;Celerier;Brunet [Journal of Fluorine Chemistry,2011,vol. 132,# 12,p. 1262 - 1265] Location in patent:experimental part

107-06-2 Synthesis