Researches chemical and philosophical: chiefly concerning nitrous oxide or dephlogisticated nitrous air and its respiration / By Humphry Davy.

  • Davy, Humphry, Sir, 1778-1829.
Date:
1800
Catalogue details

Licence: Public Domain Mark

Credit: Researches chemical and philosophical: chiefly concerning nitrous oxide or dephlogisticated nitrous air and its respiration / By Humphry Davy. Source: Wellcome Collection.

    68/614 (page 42)
    XII. The blue green fpherulcs mentioned in fedtion V. produced by the condenfation of nitrous vapor, and by the combination of nitric acid with nitrous gas, may be confidered as faturated folutions of nitrous gas in nitric acid. The combinations of nitric acid and nitrous gas containing a larger proportion of nitrous gas, are incapable of exifting in the fluid ftatc at common temperatures ; and, as appears from the firft experiment, an increafeof volume take place during their formation. They confe- quently ought to be looked upon as folutions of nitric acid in nitrous gas, identical with the nitrous vapor of Prieftley. From the refearches of this great difeoverer, we learn that nitrous vapor is decompofable, both by water and mercury. Plence it is almoH im- poflible accurately to afeertain its compolition. In one of his experiments,:}: when more than 130 grains of ftrong nitrous acid were expofed + Experimenti and Oblervations} lafl edition, vol. 1, page 384.