Researches into the laws of chemical affinity / by C.L. Berthollet ; Translated from the French by M. Farrell.

  • Berthollet, Claude-Louis, 1748-1822.
Date:
1804
Catalogue details

Licence: Public Domain Mark

Credit: Researches into the laws of chemical affinity / by C.L. Berthollet ; Translated from the French by M. Farrell. Source: Wellcome Collection.

    82/220 (page 76)
    If a small proportion of zinc be melted with a large quantity of lead, or a small quantity of lead with a large quantity of zinc, an uniform alloy will be obtained ; but other proportions give two separate alloys ; one of which contains a small quantity of zinc and a great quantity of lead, and the other the inverse proportions. The zinc aCts on the lead at first with all its force ; but this aCtion is gradually diminished, and counteracted by the force of cohesion of the parts of the lead, which is also saturated to a certain degree with zinc. The propor¬ tion of each metal which enters into each alloy, depends on the quantities which aCt on one another. The same takes place between iron and tin. It has been shewn that water continues to dissolve carbonic acid, until its decreasing energy be counteracted by the force of elasti¬ city of the acid : and the carbonic acid which is redundant to the saturation of the water, dissolves in its turn a certain portion of water.