Nitrogen Oxygen Phase Diagram. The diagram exhibits a surprising complexity. The phase diagram of nitrogen is shown below the table.
It also shows the saturation pressure with changes in temperature. Values at 25 o c 77 o f 298 k and atmospheric pressure. A eutectic line divides the liquid and the two phase region of γ o 2 β n 2 and a peritectoid line separates this two phase region and a new phase designated x between 18 and 37 n 2 and 34 and 45 k.
The curve between the critical point and the triple point shows the oxygen boiling point with changes in pressure.
However nitrogen prefers to migrate into the interior layers. We have determined the phase diagram for the notrogen oxygen system by examining the x ray diffraction patterns of polycrystalline samples of the solidified mixtures over the temperature range 21 50 k. The diagram exhibits a surprising complexity. We have determined the phase diagramfor the notrogen oxygen system by examining the x ray diffraction patterns of polycrystallinesamples of the solidifiedmixtures over the temperature range 21 50 k.
