Refrigerant gas

One of the chief uses of chloromethane is as a starting material from which sili cone polymers are made Dichloromethane is widely used as a paint stripper Trichloromethane was once used as an inhalation anesthetic but its toxicity caused it to be replaced by safer materials many years ago Tetrachloromethane is the starting mate rial for the preparation of several chlorofluorocarbons (CFCs) at one time widely used as refrigerant gases Most of the world s industrialized nations have agreed to phase out all uses of CFCs because these compounds have been implicated m atmospheric processes that degrade the Earth s ozone layer... 

The spiral-lobe and helical-screw compressors are rotary positive-displacement machines and quite adaptable to a wide assortment of process and refrigeration gases. This class of equipment is usually built to comply with the American Petroleum Institute Standard 619. These units oper-... 

The best-known gas hydrates are those of ethane, ethylene, propane, and isobulaue. Others include methane and I butene, most of the fluorocarbon refrigerant gases, nitrous oxide, acetylene, vinyl chloride, carbon dioxide, methyl and ethyl chloride, methyl and ethyl bromide, cyclopropane, hydrogen sulfide, methyl mercaptan, and sulfur dioxide. 

Ram see Amyl nitrite Rave see Amyl nitrite Reactive see GBL Red birds see Barbiturates Red devils see Barbiturates Reds see Barbiturates Redux see Diet pills Reefer see Marijuana Refrigerant gases see Inhalants Regenerize see GBL Rejoov see GBL Rejuv+nite see GBL Remedy GH see GBL Remeron see Antidepressants Remforce see GBL GHB Renewtrient see GBL Respa-DM see Dextromethorphan Restoril see Benzodiazepine Revivarant see GBL GHB Revivarant G see GBL... 

It is apparent from the data that considerable scatter still exists and several sources of error are probable. HCN and the cyanogen halides all have significant uncertainties in their enthalpy of formation, and the effects of rotational and vibrational contributions at 300 K are uncertain, but could be eliminated by using refrigerated gases. Ve choose to adopt a median value within the range of almost all determinations of jH (CN, g, 0 K) = 103.2 2.5 kcal mol . ... 

An important industrial process is the liquefaction of gases, such as natural gas (to produce LNG), propane, and refrigerant gases, to name a few. One way to liquefy a gas... 

Ammonia, caibon dioxide, refrigerant gases, ethanol... 

Refrigerated liquids and gases, gases cooled to the point of liquefaction or solidification, such as methane which liquefies at -151 C. Refrigerated gases exert less pressure on their containers than do compressed gases. 

Cryogenic liquids, a subset of refrigerated gases, those with extremely low boiling points. 

Refrigerant gases are gases used as cooling substances in the refrigerant process, e.g. in refrigerating machines (UN No.2857 in this class). IMO Class 2,1.11... 

Fluorinated refrigerant gases, such as Freon, but not to methyl chloride or bromide. 

In addition to H2O discussed above, a number of other highly accurate multiparameter EoS for pure gases have been developed (Ar, N2, CO2, CH4, O2, several organic and refrigerant gases) and are listed in Span (2000). For aqueous solutes, Pitzer (1995) lists those shown in Table 13.2. 

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