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Dichloro-1-Nitroethane, 1,1-

Dichloro-1-Nitroethane, 1,1- is a colorless liquid with an unpleasant odor; causes tears.It is used as a solvent

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Dichlorobenzidine, 3,3'-

3,3'-Dichlorobenzidine is used in the production of azo dyes and is considered a carcinogen

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Dichlorocarbene is the reactive intermediate. Dichlorocarbene is most commonly generated by reaction of chloroform and a base such as potassium t-butoxide or aqueous sodium hydroxide.It can also be obtained by dechlorination of carbon tetrachloride with magnesium with ultrasound chemistry.

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Dichlorodifluoromethane is an inert synthetic gas that is non-reactive, non-toxic and a gas at room temperature.It belongs to a family of compounds called the chlorofluorocarbons that consist of carbon, chlorine, and fluorine atoms in varying arrangements. It is made by reacting carbon tetrachloride with hydrogen fluoride gas in the presence of a catalyst, usually antimony pentafluoride. It acts as an aerosol spray propellant, and liquid freezant (direct contact freezing agent for food) when compressed in an aerosol can. It was used for air conditioners and refrigerators,as an aerosol propellant for hair sprays, insecticides, paints, adhesives, and cleaners,and as a foaming agent in the manufacture of shipping plastics.It is banned in many countries due to concerns about being a major contributor to ozone depletion.

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Dichloroethane, 1,1-

1,1-Dichloroethane is a chlorinated hydrocarbon. It is a colorless oily liquid with a chloroform-like odor. It is not easily soluble in water, but miscible with most organic solvents. Large volumes of 1,1-dichloroethane are manufactured, with annual production exceeding 1 million pounds in the United States. It is mainly used as a feedstock in chemical synthesis, chiefly of 1,1,1-trichloroethane. It is also used as a solvent for plastics, oils and fats, as a degreaser, as a fumigant in insecticide sprays, in halon fire extinguishers, and in cementing of rubber. It is used in manufacturing of high-vacuum resistant rubber and for extraction of temperature-sensitive substances. Thermal cracking at 400-500 °C and 10 MPa yields vinyl chloride. In the past, 1,1-dichloroethane was used as a surgi

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Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon. It is a colorless and odorless gas.Dichlorofluoromethane was used as a propellant and refrigerant, but due to its ozone depletion it has been set to be phased out. It has ozone depletion potential 0.04.

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