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  2. Isotopes of molybdenum - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_molybdenum

    Molybdenum-99 is produced commercially by intense neutron-bombardment of a highly purified uranium-235 target, followed rapidly by extraction. [8] It is used as a parent radioisotope in technetium-99m generators to produce the even shorter-lived daughter isotope technetium-99m, which is used in approximately 40 million medical procedures annually.

  3. List of refrigerants - Wikipedia

    en.wikipedia.org/wiki/List_of_refrigerants

    This is a list of refrigerants, sorted by their ASHRAE-designated numbers, commonly known as R numbers. Many modern refrigerants are human-made halogenated gases, ...

  4. Refrigerant - Wikipedia

    en.wikipedia.org/wiki/Refrigerant

    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.

  5. Chlorodifluoromethane - Wikipedia

    en.wikipedia.org/wiki/Chlorodifluoromethane

    Hydrofluorocarbons (HFCs) are often substituted for R-22 because of their lower ozone depletion potential, but these refrigerants often have a higher GWP. R-410A, for example, is often substituted, but has a GWP of 2088. Another substitute is R-404A with a GWP of 3900. Other substitute refrigerants are available with low GWP.

  6. 6 of the Most Common Home Renovations — Are They ... - AOL

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    With home prices still on the rise in every region of the U.S., 63% of homeowners say they'd rather remodel their homes than move to renovated homes, according to an October survey by Clever Real...

  7. 2,2-Dichloro-1,1,1-trifluoroethane - Wikipedia

    en.wikipedia.org/wiki/2,2-Dichloro-1,1,1-trifluo...

    HCFC-123 is used in large tonnage centrifugal chiller applications, and is the most efficient refrigerant currently in use in the marketplace for HVAC applications. HCFC-123 is also used as a testing agent for bypass leakage of carbon adsorbers in gas filtration systems, and as the primary chemical in Halotron I fire-extinguishing agent. [2]

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Refrigeration - Wikipedia

    en.wikipedia.org/wiki/Refrigeration

    With the invention of synthetic refrigerants based mostly on a chlorofluorocarbon (CFC) chemical, safer refrigerators were possible for home and consumer use. Freon led to the development of smaller, lighter, and cheaper refrigerators. The average price of a refrigerator dropped from $275 to $154 with the synthesis of Freon.

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