VI. On the properties of liquid carbonic acid

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Abstract
The following experiments were undertaken with a view of adding to the scanty stock of information which at present exists respecting the properties of liquid carbonic acid. To ascertain the action of the liquid acid upon solid substances, the following method was in nearly all cases adopted. A piece of flint-glass tubing, 12 inches long, ⅜ths of an inch external diameter, and 7 /32nds of an inch internal diameter, was bent to the annexed figure; the part A being about 6½ inches, the part B about 4 inches, and the part C about 1½ inch long. In pieces of glass tubing the bore is rarely of one uniform diameter, and in these experiments the smaller diameter was always employed for the end C, otherwise the tubes were liable to burst at that part. The end D was closed by fusion, and the end E was formed with a flange and left open. It is essential that the ends and bent parts of the tubes be well annealed immediately upon their formation.

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