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O F C H E M I S T R Y.
101

tion of one pound of phosphoric acid, 40.00000.

The quantity remaining in each pound of phosphoric acid, 0.00000[1].

Combustion of Charcoal.

In the combustion of one pound of charcoal, 2 libs. 9 oz. 1 gros 10 grs. of oxygen gas are absorbed, and 3 libs. 9 oz. 1 gros 10 grs. of carbonic acid gas are formed.

Caloric, disengaged during the combustion of one pound of charcoal,
96.50000[2].
Caloric disengaged during the combustion of one pound of charcoal, from each pound of oxygen gas absorbed,
37.52823.
Caloric disengaged during the formation of one pound of carbonic acid gas,
27.02024.
Caloric retained by each pound of oxygen after the combustion
29.13844.
Caloric necessary for supporting one pound of carbonic acid in the state of gas
20.97960.
Com-
  1. We here suppose the phosphoric acid not to contain any caloric, which is not strictly true; but, as I have before observed, the quantity it really contains is probably very small, and we have not given it as a value, for want of a sufficient data to go upon.—A.
  2. All these relative quantities of caloric are expressed by the number of pounds of ice, and decimal parts, melted during the several operations.—E.