XXXIV.—The magnetic rotation and refractive power of ethylene oxide
XXXIV.—The magnetic rotation and refractive power of ethylene oxide
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XXXIV.—环氧乙烷的磁旋转和折光力
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通讯作者：
W. Perkin
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作者：
W. Perkin
已经研究了几种饱和系列的氧化物的磁旋光度，如戊烯、乙基醚和异戊基醚、乙酸和丙酸以及焦酒石酸酐。这些结果与从它们的羟基代表物得到的结果相比是相当可比的，这将在下文中进一步看到。因此，测量其他氧化物的旋转是有意义的，而Wurtz发现的引人注目的化合物环氧乙烷似乎特别有意义，因为它在结构上不同于上述任何一种，尽管在某些方面类似于焦酒石酸酐，因为它是对应于二羟基-醇的氧化物，而后者是对应于二羧酸的氧化物。因此，利用冬季来测量这一点，因为考虑到该物质的挥发性，在一年的晚些时候这样做并不容易。人们认为还希望同时确定其屈光力。它不断沸腾，温度为12.5”（校正），温度计的球盖上了棉絮以防止过热。这比Wurtz（J. Chem. Soc.，1862，15，388）。环氧乙烷得自Kahlbaum。
ALREADY several kinds of oxides of the saturated series have been examined in reference to their magnetic rotation, uamely, ethyl and isoamyl ethers, acetic and propionic acids, and pyro tartaric anhydride. The results these have given, when compared with those obtained from their hydroxylic representatives, are fairly comparable, as will be seen further on. It was therefore of interest to measure the rotations of other oxides, and that remarkable compound discovered by Wurtz, ethylene oxide, appeared to be of especial interest, as it differs in structure from any of the above, though, in some respects, resembling pyrotartaric anhydride, inasmuch as it is the oxide corresponding to a dihydrosy-alcohol, whilst the latter is the oxide corresponding to a dicarboxylic acid. Advantage was therefore taken of the winter season to measure this, as on account of the volatility of this substance it would not be easy to do so later on in the year. It was thought desirable also to determine its refractive power a t the same time. It boiled constantly a t 12.5" (corr.), the bulb of the thermometer being covered with cotton-wool to prevent superheating. This is 1" lower than that given by Wurtz (J. Chem. Soc., 1862, 15, 388). The ethylene oxide was obtained from Kahlbaum.