XXVII. Experiments on the condensation and critical phenomena of some substances and mixtures
XXVII. Experiments on the condensation and critical phenomena of some substances and mixtures
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二十七．
DOI：
10.1080/14786449708621051
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发表时间：
1897
期刊：
影响因子：
--
通讯作者：
J. Kuenen
中科院分区：
文献类型：
--
作者：
J. Kuenen
4.为了证实我的实验结果，同时也为了得到一些更纯的乙烷供进一步实验之用，我重复了从乙酸钠制备乙烷的过程。阳极由两片铂箔（接合面150 cm ~）组成，在一个大尺寸的多孔罐中进行加热，注意获得高电流密度。使用约15安培的电流。需要采取特殊预防措施，以防止关闭多孔罐的橡胶塞被产生的热量烧毁。一根玻璃管穿过塞子，外面弯成U形，里面装着一些水银。与铂箔的接触是通过焊接到箔上的铂线来实现的。气体用氢氧化钠、发烟硫酸和碳酸钾洗涤，收集在装有碳酸钾溶液的气量计中。这个煤气表由两个大玻璃瓶组成，用橡胶塞塞住，用一根宽玻璃管连接。乙烷的产率非常高，形成的氧气非常少。此外，在煤气表中加入一片磷，也可以吸收氧气。Marray~ Journal Chem. Soc. lxi。pp. 10-36.
4. In order to confirm my results~ and at the same time to obtain some more pure ethane for further experiments, I repeated the preparation of ethane from sodium acetate. The anode, consisting of two pieces of platinum foil (joint surface 150 cm.~), was Flaced inside a good-sized porous pot, care being taken to obtain a high current-density*. A current of about 15 amperes was used. Special precaution was required to prevent the indiarubber stopper which closed the porous pot from being burnt by the heat developed. A glass tube, passing through the stopper~ was bent into a U-shape outside and contained some mercury. The contact with the platinum foil was made by platinmn wires soldered to the foil. The gas was washed in sodium hydrate, fuming sulphurie-~ eid, and potash~ and collected in a gasometer which was filled with a solution of potash. This gasometer consisted of two carboys, closed with indiarubber stoppers and connected by a wide glass tube. The yield of ethane was very high, very little oxygen being formed. The oxygen was moreover absorbed by introducing a piece of phosphorus into the gaso-meter.* Marray~ Journal Chem. Soc. lxi. pp. 10-36.