| 摘要 |
A fire retarded solvent composition includes a mixture of at least one flammable organic solvent; and a mixture of at least one brominated hydrocarbon, in an amount sufficient to decrease the flame propagation rate of the composition and preferably increase the flash point of the solvent composition. The brominated hydrocarbon may be selected from the group consisting of dibromoethane, dibromomethane, chlorodibromomethane, bromochloromethane, dibromodifluoromethane, dibromodifluoroethane, 1,2,dibromo-1.1-difluoroethane, chlorodibromofluoromethane, 1,2dibromotetrafluoroethane and 1,2dibromoethylene. Dibromomethane and bromochloromethane are preferred. When used as an oil and gas operation fluid, the fluorinated hydrocarbons should not be used, nor should the brominated hydrocarbon be an aromatic or contain an oxygen bridge. The organic solvent is preferably selected from the group consisting of light petroleum distillate, diesel and crude, the fluid hydrocarbon primarily having between 5 and 12 carbon atoms. |
