scholarly journals Calorimetric determinations of thermal properties of methyl alcohol, ethyl alcohol, and benzene

1931 ◽  
Vol 6 (5) ◽  
pp. 881 ◽  
Author(s):  
E.F. Fiock ◽  
D.C. Ginnings ◽  
W.B. Holton
1887 ◽  
Vol 42 (251-257) ◽  
pp. 3-6 ◽  

For several years past we have been engaged in an examination of the behaviour of liquids and gases through wide ranges of temperature and pressure. The results of our experiments with ethyl alcohol have recently been published in the ‘Philosophical Transactions;’ those with acetic acid in the ‘Journal (Transactions) of the Chemical Society'; and the Royal Society have in their hands a similar investigation on ether. We have also finished a study of the thermal properties of methyl alcohol.


In two recent papers from these laboratories it was shown that when methane- and ethane-oxygen mixtures containing excess of the hydrocarbon react at high pressure various liquid products can be isolated. For methane-oxygen mixtures methyl alcohol and water are found, and for ethane-oxygen mixtures ethyl alcohol, acetaldehyde, methyl alcohol, acetic acid, formic acid, and water. These products being important for the light they throw on the mechanism of hydrocarbon combustion and because they suggest means for using waste hydrocarbon gases, further experiments have now been made with the object of finding the order of their formation and the optimum condition for their survival.


1969 ◽  
Vol 47 (15) ◽  
pp. 2811-2818 ◽  
Author(s):  
Hans H. Baer ◽  
Werner Rank

Treatment of methyl 4,6-O-benzylidene-3-deoxy-3-nitro-β-D-glucopyranoside (1) and its α-anomer (3), as well as of methyl 4,6-O-benzylidene-2,3-dideoxy-3-nitro-β-D-erythro-hex-2-enopyranoside (2) and its α-anomer (4), with basic aluminum oxide in refluxing toluene, leads to loss of the nitro and glycosidic methoxyl groups. As a common product an α,β-unsaturated lactone, 4,6-O-benzylidene-2,3-dideoxy-D-erythro-hex-2-enono-1,5-lactone (5), was isolated in crystalline form. The β-D-manno isomer (6) of 1 incurs epimerization to 1 and partial conversion to 5. Methyl 4,6-O-benzylidene-3-deoxy-3-nitro-β-D-galacto-pyranoside (7) and methyl 4,6-O-benzylidene-2,3-dideoxy-3-nitro-β-D-threo-hex-2-enopyranoside (8) similarly yield a crystalline lactone, 4,6-O-benzylidene-2,3-dideoxy-D-threo-hex-2-enono-1,5-lactone (9). The mechanism of this novel reaction is discussed, and certain differences in reactivity in the gluco and galacto series are pointed out. Base-catalyzed additions of methyl alcohol, ethyl alcohol, and piperidine to 8 afford methyl 4,6-O-benzylidene-3-deoxy-2-O-methyl-3-nitro-β-D-galactopyranoside (10), its 2-O-ethyl analogue (11), and methyl 4,6-O-benzylidene-2,3-dideoxy-3-nitro-2-piperidino-β-D-galacto-pyranoside (12), respectively.


1887 ◽  
Vol 42 (251-257) ◽  
pp. 37-37

This is a continuation of the investigation in which the authors are engaged. The measurements include the expansion of the liquid, the pressure of the vapour, and the compressibility of the substance in the gaseous state; and from these are deduced the densities of the saturated vapour and the heats of vaporisation.


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