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Atomic, Molecular, and Optical Physics
Published in W. M. Haynes, David R. Lide, Thomas J. Bruno, CRC Handbook of Chemistry and Physics, 2016
W. M. Haynes, David R. Lide, Thomas J. Bruno
Name Cyanogen chloride Dichloromethylene Dichlorodifluoromethane Carbonyl chloride Trichlorofluoromethane Tetrachloromethane Fluoromethylidyne Cyanogen fluoride Difluoromethylene Carbonyl fluoride Trifluoromethyl Trifluoroiodomethane Methylidyne Bromodichloromethane Chlorodibromomethane Tribromomethane Chloromethylene Chlorodifluoromethane Dichlorofluoromethane Trichloromethane Fluoromethylene Trifluoromethane Triiodomethane Hydrogen cyanide Hydrogen isocyanide Isocyanic acid Fulminic acid Oxomethyl (HCO) Methylene Bromochloromethane Dibromomethane Chlorofluoromethane Dichloromethane Difluoromethane Diiodomethane Diazomethane Cyanamide Formaldehyde Formic acid Methyl Borane carbonyl Bromomethane Chloromethane Methyltrichlorosilane Fluoromethane Iodomethane Formamide Nitromethane Methyl azide Methoxy Methane Urea Methanol Methanethiol Methylamine Methylhydrazine Methylsilane Cyanide Cyanate Carbon monoxide
Refrigerants for sustainable environment – a literature review
Published in International Journal of Sustainable Energy, 2022
D.C. Savitha, P.K. Ranjith, Basavaraja Talawar, N. Rana Pratap Reddy
HFO are mildly flammable. R1234yf, 1234ze are graded as mildly flammable. Their usage in Mobile Air Conditioning [MAC] system could be a potential system. Manufacturing of most HFO molecules is costly as the synthesis of molecules involves more than single process (Calm, Didion, and Didion 1997). The products of degradation of HFO depend on the identity of the HFO (Fleet et al. 2017). In case of fire, HFO-1234yf will decompose into hydrogen fluoride (HF) and carbonyl fluoride (COF2) which are extremely toxic. Also, in case of leakage in the atmosphere, HFOs breakdown into trifluoroacetic acid (TFA), which has a potential to accumulate and adversely affect ecosystems by increasing their acidity (Hanson et al. 2002). To conclude the effect of TFA, several knowledge gaps need to be addressed. The cycle of TFA in the atmosphere and hydrosphere is not fully understood. There is a lack of information on the potential source of TFA and the amount of TFA usage in global (Table 6).