Use of difluoromethane and pentafluoroethane-based mixtures...

Details Use of difluoromethane and pentafluoroethane-based mixtures... Use of difluoromethane and pentafluoroethane-based mixtures...

C - Chemistry, Metallurgy

09

K

C09K 5/04 (2006.01)

Patent

CA 2220086

The invention proposes using a mixture containing 25 to 50% difluoromethane and 50 to 75% pentafluoroethane by mass to replace bromotrifluoromethane (R-13B1) in very low temperature refrigeration. A third component may be added to this mixture.

Pour remplacer le bromotrifluorométhane (R-13B1) en réfrigération très basse température, l'invention propose d'utiliser un mélange contenant en masse 25 à 50 % de difluorométhane et 50 à 75 % de pentafluoroéthane. Un troisième composant peut être incorporé à ce mélange.

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