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.

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    tity of gas generated in the procefs, obtained ; it meafured 15 cubic inches. 4 cubic inches of it expofed to folution of potafh, diminidied to 1 7 of the remainder, with 8 of oxygene, gave only 12. EXP. f. ()0 grains of nitre, and q of char- coal were fired, the top of the mercury in the jar being covered with water. After the detla- gration, the tube that had contained them was introduced, and. the carbonic acid contained by the carbonate of potafh, difengaged by muriatic acid. 30 me'afurcs of the gafes evolved were expofed to cauftic potafli; 20 exactly were abforbed, the 10 remaining, with 10 of oxy- gene, diminiflied to 1/. EXP. g. A mixture of nitre and charcoal were deflagrated over a little water in the mer- curial jar : after the precipitation of the vapor, the w^ater was abforbed by filtrating paper. This -filtrating paper, heated in a folution of potafh, gave a faint fmcll of ammoniac. EXP. h. Water impregnated with the vapor produced in the deflagration, was heated