Because the temperature diference between the product and the surrounding environment is substantialeven in the winterkeeping liquid oxygen insulated from the surrounding heat is essential. When combined, these subscripts are applied recursively. Liquid oxygen has a boiling point of 297F (183C). The symbol for pressure is usually P or p which may use a subscript to identify the pressure, and gas species are also referred to by subscript. That said, these pressures can also be measured in, for example, cerebrospinal fluid. Furthermore, the partial pressures of oxygen and carbon dioxide are important parameters in tests of arterial blood gases.

This is true across a very wide range of different concentrations of oxygen present in various inhaled breathing gases or dissolved in blood consequently, mixture ratios, like that of breathable 20% oxygen and 80% Nitrogen, are determined by volume instead of by weight or mass. For example, the necessary amount of oxygen for human respiration, and the amount that is toxic, is set by the partial pressure of oxygen alone. This general property of gases is also true in chemical reactions of gases in biology. Gases dissolve, diffuse, and react according to their partial pressures but not according to their concentrations in gas mixtures or liquids. It has a pale blue color and is strongly paramagnetic.

The partial pressure of a gas is a measure of thermodynamic activity of the gas's molecules. Liquid oxygen (also LOx, LOX or Lox in the aerospace, submarine and gas industry) is a form of the element oxygen. The total pressure of an ideal gas mixture is the sum of the partial pressures of the gases in the mixture ( Dalton's Law). In a mixture of gases, each constituent gas has a partial pressure which is the notional pressure of that constituent gas as if it alone occupied the entire volume of the original mixture at the same temperature. The first gas to boil is nitrogen with its boiling-point at -196 C followed by argon at -186 C and finally, oxygen with a boiling point of -183 C. *Reference: Air Products CYCSYN Property Data, which is maintained from sources such as the National Institute of Standards and Technology (NIST).Pressure of a component gas in a mixture The atmospheric pressure is roughly equal to the sum of partial pressures of constituent gases – oxygen, nitrogen, argon, water vapor, carbon dioxide, etc. Liquid Density lb/ft³ Boiling Point ☏ Sat. Temperature Control for Food Mixing and Forming.Printed Circuit Board Assembly and Test.Integrated Circuit Packaging, Assembly & Test.Fracturing for Unconventional Oil & Gas.

Boiling point of liquid oxygen