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.

    45/614 (page 19)
    We may then conclude, FirtV, that 100 cubic inches of nitrous acid, fuch as exifts in the * aeriform ftate faturated with oxygene, at temperature 55% and atinofpheric preffure 30,1 weigh 75,17 grains. Secondly, that* 100 grains of it are compofed of 68,06 nitrous gas, and 31,Q4 oxygene. Or atTuming what will be hereafter proved, that 100 parts of nitrous gas confift of 55^Q5 oxy- gene, and 44,05 nitrogene, of 29,9 nitrogene, and 70,1 oxygene ; or taking away decimals, of 30 of the one to 70 of the other. Thirdly, that 100 grains of pale green folution of nitrous acid in water, of fpecitic gravity 1,301, is compofed of 50,62 water, and 49,38 acid of the above compofition. VI. Having thus afeertained the compofition of a ftandard acid, my next object was to ob- tain it in a more condenfed ftate, as it was otherwife impoffible to faturate it to its full * As is evident from the fuperabundant quantity et •xygene thrown into the giobe.