When did Freon patent expire?
In 1978 the United States banned the use of CFCs such as Freon in aerosol cans, the beginning of a long series of regulatory actions against their use. The critical DuPont manufacturing patent for Freon (“Process for Fluorinating Halohydrocarbons”, U.S. Patent #3258500) was set to expire in 1979.
Which Freon is banned?
R-22
R-22, the principle component in Freon, has been banned, along with other greenhouse gases, due to evidence that they damage the Earth’s ozone layer and contribute to global warming.
What is Freon formula?
Freon is originally a trademark for a compound with the general formula CFₓCl₄₋ₓ or C₂FₓCl₆₋ₓ. Nowadays, freons are more widely described as substituted hydrocarbons, where a number of, or all, hydrogen atoms are exchanged for fluorine, chlorine or (more rarely) bromine.
What is refrigerant R12?
Refrigerant R12 or Freon 12 is said to be the most widely used of all the refrigerants being used for different applications. The chemical name of refrigerant R12 is dichlorodifluoromethane and its chemical formula is CCl2F2. The molecular weight of R12 is 120.9 and its boiling point is -21.6 degree F.
Can you still get R 22 freon?
If you rely on a heating or cooling system that uses R22 refrigerant, an ozone-depleting substance (ODS), you may be in for a surprise during your next service visit. As of January 1, 2020, production and import of R22 refrigerant will be illegal in the United States.
What is the structural formula of Freon 114?
C2Cl2F41,2-Dichlorotetrafluoroethane / Formula
What is the correct formula for Freon-12?
CCl2F2Dichlorodifluoromethane / Formula
Is Freon 12 banned?
R-12 is a colorless and odorless CFC refrigerant that was completely banned from production by 1996 under the Montreal Protocol for depleting the ozone. R-12 has many applications in refrigeration and air conditioning including large to mediums size chillers, automotive air conditioning, and as an aerosol propellant.
Apa saja jenis Freon?
Dikarenakan fungsinya yang beragam, freon diklasifikasikan ke dalam beberapa kelas berdasarkan jenis fluida yang digunakan. Jenis-jenis tersebut antara lain CFS (Chlorodifluorocarbon), HCFC (Hydrochlorofluorocarbon), HFC (Hydrofluorocarbon), HC (Hydrocarbon), dan jenis natural yang langsung digunakan dari alam.
Apakah Freon termasuk senyawa alifatik?
Freon (Klorofluorokarbon) adalah salah satu dari beberapa senyawa alifatik sederhana yang digunakan dalam perdagangan dan industri. Freon mengandung senyawa hidrogen, klorin, atau bromin.
Apakah Freon jenis R22 bisa digunakan lagi?
Akan tetapi, di Indonesia, peraturan pemerintah melalui Departemen Perindustrian dan Perdagangan nomor (41/M-IND/PER/5/2014), (40/M-DAG/PER/7/2014) dan (55/M-DAG/PER/9/2014) menyatakan bahwa sejak tahun 2015 lalu, freon dengan jenis R22 ini dihapus dan tidak diizinkan untuk digunakan lagi.
Mengapa Freon tidak berbau?
Karena termasuk dalam senyawa kimia atau gas, freon tidak memiliki warna dan juga tidak berbau. Dikarenakan fungsinya yang beragam, freon diklasifikasikan ke dalam beberapa kelas berdasarkan jenis fluida yang digunakan.