Disclosed are ternary azeotropic, azeotrope-like, and zeotropic compositions of ammonia, pentafluoroethane and difluoromethane. These compositions are useful as refrigerants, and particularly as high capacity and efficiency alternatives to binary mixtures of difluoromethane and pentafluoroethane.

Se divulgan azeotropic ternarios, azeotrope-como, y las composiciones zeotropic del amonĂ­aco, del pentafluoroethane y del difluoromethane. Estas composiciones son Ăștiles como refrigerantes, y particularmente como alternativas de la alta capacidad y de la eficacia a las mezclas binarias del difluoromethane y del pentafluoroethane.

 
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> Surface treatment of ethylene based polymer pellets to improve blocking resistance

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