Carbon tetrachloride, also known by many other names (the most notable being carbon tet in the cleaning industry, and as Halon 104 or Freon 10 in HVAC), is the organic compound with the formula CCl4. It was formerly widely used in fire extinguishers, as a precursor to refrigerants, and as a cleaning agent. It is a colourless liquid with a "sweet" smell that can be detected at low levels.
Both carbon tetrachloride and tetrachloromethane are acceptable names under IUPAC nomenclature.
Carbon tetrachloride was originally synthesised by the French chemist Henri Victor Regnault in 1839 by the reaction of chloroform with chlorine, but now it is mainly produced from methane:
CH4 + 4 Cl2 → CCl4 + 4 HCl
The production often utilizes by-products of other chlorination reactions, such as from the syntheses of dichloromethane and chloroform. Higher chlorocarbons are also subjected to "chlorinolysis:"
C2Cl6 + Cl2 → 2 CCl4
Prior to the 1950s, carbon tetrachloride was manufactured by the chlorination of carbon disulfide at 105 to 130 °C:
CS2 + 3Cl2 → CCl4 + S2Cl2
The production of carbon tetrachloride has steeply declined since the 1980s due to environmental concerns and the decreased demand for CFCs, which were derived from carbon tetrachloride. In 1992, production in the U.S.-Europe-Japan was estimated at 720,000 tonnes.
Mr. Lalit Sardana(IIT-JEE AIR 243) is teaching you in this video and he is a compass who activates the magnets of curiosity, knowledge, and wisdom in the pupils. In this video he has explained students preparation from carbon tetrachloride. The students appearing for class 11th, class 12th CBSE exams and competitive exams like JEE Mains, JEE Advanced, VITEEE, AIPMT, AFMC, BITSAT, WBJEE,etc
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