| 摘要 |
cooling agents. SUBSTANCE: composition of fluoro-containing halogenated hydrocarbons comprises 66-99 wt.-% of octafluoropropane (coolant 218) and 1,1,1-trifluoroethane (coolant 143a), the balance. The proposed composition is an ozone-inactive, incombustible, it shows fire safety since in evaporation and leakage it has an incombustible octafluoropropane always. The composition can be used as a low-temperature cooling agent, gaseous dielectric, propellant, combustion retardant, foaming agent for polyolefins and polyurethanes. EFFECT: improved properties of cooling agent, valuable properties. 5 tbl, 1 dwg |
