The gas is made of a mixture of fifty percent nitrous oxide (N2O or laughing gas) and fifty percent oxygen (O2). The ability to combine nitrous oxide (nitrous oxide is the common name; dinitrogen monoxide, systematic name) and oxygen at high pressure while remaining in the gaseous form is caused by the Poynting effect (after John Henry Poynting, an English physicist).
The Poynting effect involves the dissolution of gaseous O2 when bubbled through liquid N2O, with vaporisation of the liquid to form a gaseous O2/N2O mixture.
Inhalation of pure nitrous oxide over a continued period would render a human hypoxic, and the 50% oxygen content prevents this from occurring. The two gases will separate at low temperatures (<4 °C), which would permit administration of hypoxic mixtures. Therefore, it is not given from a cold cylinder without being shaken (usually by cylinder inversion) to remix the gases.
Read more about this topic: Nitrous Oxide And Oxygen
Other articles related to "compositions, composition":
... Among Salonen's compositions are...auf den ersten blick und ohne zu wissen.. ... in California has helped him to be more "free" in his compositions ... to a pleasure principle" is how he described the composition of his breakthrough piece, "LA Variations," which the Philharmonic premiered in 1997 ...
... At the age of 11, he entered the University of Washington to study composition privately with George Frederick McKay and John Verrall and piano with Madame Berthe Poncy ... Paris Conservatoire, where he received the 2ème Prix de Composition ... Lee Finney Distinguished University Professor of Composition at the University of Michigan, a position which he still holds ...
... Examples and an Enquiry Into the Definition of Poetry English Composition and Rhetoric Emotional qualities of style English Composition and Rhetoric ...
... Senate composition before the elections R1 R11 R21 R31 R41 D48 D38 D28 D18 D8 R2 R12 R22 R32 R42 D47 D37 D27 D17 D7 R3 R13 R23 R33 R43 D46 D36 D26 D16 D6 R4 R14 R24 R34 R44 D45 D35 D25 D15 D5 ...
... Senate composition before the elections I D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D R R R R R R R R R R R R R R R R R R R R R R R R R R R R ...
Famous quotes containing the word composition:
“There is singularly nothing that makes a difference a difference in beginning and in the middle and in ending except that each generation has something different at which they are all looking. By this I mean so simply that anybody knows it that composition is the difference which makes each and all of them then different from other generations and this is what makes everything different otherwise they are all alike and everybody knows it because everybody says it.”
—Gertrude Stein (18741946)
“There was not a grain of poetry in the whole composition of Lord Fawn, and poetry was what her very soul craved;Mpoetry, together with houses, champagne, jewels, and admiration.”
—Anthony Trollope (18151882)
“Every thing in his composition was little; and he had all the weaknesses of a little mind, without any of the virtues, or even the vices, of a great one.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (16941773)