Luquid air has definite boiling point.
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The boiling point of liquid air is -194.35 °C, intermediate between theboiling points of liquid nitrogen andliquid oxygen. ... Liquid air freezes at approximately 58 K (-215 °C)(-355 F), also at standard atmospheric pressure
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Liquid air has a density of approximately 870 kg/m3 (0.87 g/cm3), though the density may vary depending on the elemental composition of the air. Since dry gaseous air contains approximately 78% nitrogen, 21% oxygen, and 1% argon, the density of liquid air at standard composition is calculated by the percentage of the components and their respective liquid densities (see liquid nitrogen and liquid oxygen). Although air contains trace amounts of carbon dioxide (about 0.040%), this gas sublimates (transfers directly between gas and solid, and therefore does not exist as a liquid) at pressures less than 5.1 atmospheres.
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