ABSTRACT

There is no evidence that 1,1-dichloro-1,2,2,2-tetrafluoroethane is manufactured or used commercially and therefore, little or none of the chemical may be released to the environment. If released to soil, 1,1-dichloro-1,2,2,2- tetrafluoroethane would be expected to rapidly volatilize from the soil surface or leach into the soil. If released into water, 1,1-dichloro-1,2,2,2-tetrafluoroethane would rapidly volatilize. Bioconcentration in aquatic organisms or adsorption to sediment would not be significant. It is not clear that 1,1-dichloro-1,2,2,2-tetrafluoroethane is used commercially or even manufactured in this country at the present time. It is not listed in Freon Products Information or in the Aldrich catalog, suggesting that it is not used much commercially or for research purposes. Hydroxyl radicals and ozone are the two most important atmospheric species affecting atmospheric persistence of most organic compounds.