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It is a zeotropic blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a). Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure. [1] R-407C cylinders are colored burnt orange. This refrigerant is intended as a replacement for ...
The energy efficiency and system capacity of systems designed for R-22 is slightly greater using R-22 than the available substitutes. [11] R-407A is for use in low- and medium-temp refrigeration. Uses a polyolester (POE) oil. R-407C is for use in air conditioning. Uses a minimum of 20 percent POE oil.
Cylinders of HCFC-123 were a light grey prior to the elimination of cylinder color identification. Isomers are 1,2-dichloro-1,1,2-trifluoroethane (R-123a) ...
5. Borden American Cheese Singles. The truth is, so many of these cheeses taste identical. Borden and Harris Teeter are really similar, both lacking any distinct flavors that make them unique or ...
Police in Greece said Wednesday they were investigating how an ancient Greek statue came to be dumped in a black plastic bag near garbage cans in the northern city of Thessaloniki.
A group of investors led by Elon Musk says it is offering more than $97 billion to buy OpenAI, escalating a legal dispute with the artificial intelligence company that Musk helped found. Musk and ...
A DuPont R-134a refrigerant. A refrigerant is a working fluid used in cooling, heating or reverse cooling and heating of air conditioning systems and heat pumps where they undergo a repeated phase transition from a liquid to a gas and back again.
From June 2009 to December 2012, if you bought shares in companies when Alfred F. Kelly, Jr. joined the board, and sold them when he left, you would have a 12.1 percent return on your investment, compared to a 59.3 percent return from the S&P 500.
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