Solubility carbon monoxide

Most recently, Chen et al. studied the solubility of trans-Co2(CO)e[ p-CF3C6H4)3]2 in SCCO2 (p = 0.45 gcm ) in the presence of 0.74 MPa carbon monoxide in view of utilizing this complex as a pre-catalyst for hy-droformylation of ethylene and propylene [123]. The presence of additional P(p-CF3C6H4)3 enabled measurements above 373 K without phosphine dissociation against carbon monoxide. Solubilities were measured between 0.2 mmol cm (353 K) and 2.1 mmol cm (403 K). 

Ohlin, C. A., Dyson, R J., and Laurenczy, G., Carbon monoxide solubility in ionic liquids Determination, prediction and relevance to hydroformylation, Chem. Commun., 1070, 2004. 

Properties Gas at normal temperature and pressure. Bp -26C, fp -142C. Decomposes slowly with formation of hydrogen fluoride and carbon monoxide. Soluble in water (decomposes). 

Cargill, R. W., Ed. Carbon Monoxide. Solubility Data Series, Po gamon Press, Oxford, 1990. 

The experimental results indicated that CO2 solubility is strongly dependent on temperature and pressure, decreasing with temperature and probably having an economically optimum mid-range pressure.Methane and carbon monoxide solubilities in [BMlM][Tf2N] fall in between those of H2 and... 

CO solubility [CARBON MONOXIDE] (Vol 5) trans-l,4-Cyclohexane-bis-l,3-diethylurea... 

The 0X0 and aldol reactions may be combined if the cobalt catalyst is modified by the addition of organic—soluble compounds of 2inc or other metals. Thus, propylene, hydrogen, and carbon monoxide give a mixture of aldehydes and 2-ethylhexenaldehyde [123-05-7] which, on hydrogenation, yield the corresponding alcohols. 

The common treatment methods are acidification, neutralization, and incineration. When oxahc acid is heated slightly in sulfuric acid, it is converted to carbon monoxide, carbon dioxide, and water. Reaction with acid potassium permanganate converts it to carbon dioxide. Neutralization with alkahes, such as caustic soda, yields soluble oxalates. Neutralization with lime gives practically insoluble calcium oxalate, which can be safely disposed of, for instance, by incineration. 

Pyrrohdinone (2-pyrrohdone, butyrolactam or 2-Pyrol) (27) was first reported in 1889 as a product of the dehydration of 4-aminobutanoic acid (49). The synthesis used for commercial manufacture, ie, condensation of butyrolactone with ammonia at high temperatures, was first described in 1936 (50). Other synthetic routes include carbon monoxide insertion into allylamine (51,52), hydrolytic hydrogenation of succinonitnle (53,54), and hydrogenation of ammoniacal solutions of maleic or succinic acids (55—57). Properties of 2-pyrrohdinone are Hsted in Table 2. 2-Pyrrohdinone is completely miscible with water, lower alcohols, lower ketones, ether, ethyl acetate, chloroform, and benzene. It is soluble to ca 1 wt % in aUphatic hydrocarbons. 

Air-poUutant effects on neural and sensory functions in humans vary widely. Odorous pollutants cause only minor annoyance yet, if persistent, they can lead to irritation, emotional upset, anorexia, and mental depression. Carbon monoxide can cause death secondary to the depression of the respiratory centers of the central nervous system. Short of death, repeated and prolonged exposure to carbon monoxide can alter sensory protection, temporal perception, and higher mental functions. Lipid-soluble aerosols can enter the body and be absorbed in the lipids of the central nervous system. Once there, their effects may persist long after the initial contact has been removed. Examples of agents of long-term chronic effects are organic phosphate pesticides and aerosols carrying the metals lead, mercury, and cadmium. 

Carbon monoxide (CO) is a colorless and odorless gas molecule. This inorganic compound, at standard temperature and pressure, is chemically stable with low solubility in water but high solubility in alcohol and benzene. Incomplete oxidation of carbon in combustion is the major source of environmental production of CO. When it burns, CO yields a violet flame. The specific gravity of CO is 0.96716 with a boiling point of -190°C and a solidification point of-207°C. The specific volume of CO is 13.8 cu ft/lb (70°F). 

Colourless water-soluble fuming liquid with pungent penetrating odour Glacial acid freezes at 8°C Decomposes slowly in storage, liberating carbon monoxide... 

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