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Chlorofluorocarbon

Chlorofluorocarbon is an organic compound that contains only carbon, chlorine, hydrogen and fluorine, produced as a volatile derivative of methane and ethane. It has been widely used with refrigerant, blowing, solvent, and aerosol propellant.

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Dichlorodifluoromethane

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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DuPont Dymel 134a

DuPont Dymel 134a propellant is nonflammable. It can be mixed with other propellants to produce a limited range of nonflammable blends or to reduce the flammability of other aerosol formulations. Features of the propellant products include its nonflammability, ability to blend with other propellants and hydrocarbons and further its chemical stability.

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DuPont Dymel 152a

DuPont Dymel 152a propellant can be used alone or mixed with other common aerosol propellants in a wide range of personal, household or industrial product categories where the product is dispensed as a spray, e.g., hair spray, cologne, deodorant, and air fresheners. It is also used in spray paints, adhesives and a variety of other aerosol products.

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DuPont Dymel A

DuPont Dymel A propellant is used in applications where solubililty in water is important, such as hair spray, deodorants and other personal care items, as well as household aerosols such as air fresheners and paints. Features of the products include its solubility in water, solubility in organics, its medium-high vapor pressure and further its hydrolytic stability.

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Isobutane

Isobutane is an isomer of butane. It is the simplest alkane with a tertiary carbon. Concerns with depletion of the ozone layer by freon gases have led to increased use of isobutane as a gas for refrigeration systems, especially in domestic refrigerators and freezers, and as a propellant in aerosol sprays. Isobutane is used as a feedstock in the petrochemical industry.

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Methanol

Methanol is the simplest alcohol. It is used as an antifreeze, solvent, fuel, and as a denaturant for ethanol. It is also used for producing biodiesel via transesterification reaction. The largest use of methanol by far is in making other chemicals. It is used on a limited basis to fuel internal combustion engines. In some wastewater treatment plants, a small amount of methanol is added to wastewater to provide a carbon food source for the denitrifying bacteria, which convert nitrates to nitrogen to reduce the nitrification of sensitive aquifers. Direct-methanol fuel cells are unique in their low temperature, atmospheric pressure operation, allowing them to be miniaturized to an unprecedented degree. This, combined with the relatively easy and safe storage and handling of methanol may open the possibility of fuel cell-powered consumer electronics, such as for laptop computers and mobile phones. Dimethyl ether, derivative of methanol, is used as an aerosol spray propellant.

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Propane

Propane is a three-carbon alkane, normally a gas, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum refining, it is commonly used as a fuel for engines, oxy-gas torches, barbecues, portable stoves and residential central heating. A mixture of propane and butane, used mainly as vehicle fuel, is commonly known as liquefied petroleum gas. It may also contain small amounts of propylene and butylene. An odorant such as ethanethiol or thiophene is added so that people can easily smell the gas in case of a leak. It is also used as an aerosol propellant.

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