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2. List of refrigerants - Wikipedia

   en.wikipedia.org/wiki/List_of_refrigerants

   According to ASHRAE standard 34, the R-number of a chemical refrigerant is assigned systematically according to its molecular structure and has between two and four digits. If there are carbon -carbon multiple bonds , there are four digits in all: the number of these bonds is the first digit and the number of carbon atoms minus one (C-1) is next.

3. Chlorodifluoromethane - Wikipedia

   en.wikipedia.org/wiki/Chlorodifluoromethane

   Propane was the de facto refrigerant in systems smaller than industrial scale before the introduction of CFCs. The reputation of propane refrigerators as a fire hazard kept delivered ice and the ice box the overwhelming consumer choice despite its inconvenience and higher cost until safe CFC systems overcame the negative perceptions of ...

4. Refrigerant - Wikipedia

   en.wikipedia.org/wiki/Refrigerant

   A refrigerant is a working fluid used in ... The Regulation banned the use of R22 as a "top-up" fluid for maintenance from 2010 for virgin fluid and from 2015 for ...

5. R-407C - Wikipedia

   en.wikipedia.org/wiki/R-407C

   R-407C is a mixture of hydrofluorocarbons used as a refrigerant. 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 ]

6. Texas daycare worker allegedly kicked toddlers more than 100 ...

   www.aol.com/texas-daycare-worker-allegedly...

   A Texas daycare worker was arrested on accusations she kicked and pushed at least six toddlers over a three-month period.. Catherine Guziejka, 44, was booked into the Smith County Jail on Oct. 30 ...

7. Dermatologists Say These Skincare Tricks Could Reverse Aging ...

   www.aol.com/baby-grabbed-handful-loose-neck...

   If the skin of your neck is starting to show the signs of aging (wrinkles, sagging, discoloration), these nonsurgical tips recommended by dermatologists can help.

8. R-407A - Wikipedia

   en.wikipedia.org/wiki/R-407A

   R-407A is a mixture of gasses used as a refrigerant.It is a zeotropic blend of difluoromethane (HFC-32), pentafluoroethane (HFC-125) and 1,1,1,2-tetrafluoroethane (HFC-134a). [1]

9. Italian Sea Group says it is not liable in Mike Lynch yacht ...

   www.aol.com/news/italian-sea-group-says-not...

   Italian Sea Group is not liable in relation to the fatal sinking of Mike Lynch's superyacht, which killed the British tech billionaire and six others, its chief executive said on Tuesday. The ...