Licence: Public Domain Mark
Credit: The liquefaction of gases : papers / by Michael Faraday. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
16/90 (page 10)
![can be produced by the most powerful freezing mixtures, not half as much as would result from the application of a strong flame to one part of a glass tube, the other part being of ordinary temperature: and when attempts are made to condense gases into fluids by sudden mechanical compression, the heat, instantly generated, presents a formidable obstacle to the success of the experiment; whereas, in the compression resulting from their slow generation in close vessels, if the process be conducted with common precautions, there is no source of difficulty or danger; and it may be easily assisted by artificial cold in cases when gases approach near to that point of com- pression and temperature at which they become vapours. II. ON THE CONDENSATION of SEVERAL GASES INTO LIQUIDS.* Read April i.o, 1823. IHAD the honour, a few weeks since, of submitting to the Royal Society a paper on the reduction of chlorine to the liquid state. An important note was added to the paper by the President, on the general application of the means used in this case to the reduc- tion of other gaseous bodies to the hquid state; and in illustration of the process, the production of liquid muriatic acid was described. Sir Humphry Davy did me the honour to request I would continue the experi- ments, which I have done under his general direction, and the following are some of the results already obtained: Sulphurous Acid. Mercury and concentrated sulphuric acid were sealed * [From Philosophical Transactions fori 823, Vol. 113, pp. 189-198.]](https://iiif.wellcomecollection.org/image/b21930260_0016.jp2/full/800%2C/0/default.jpg)