Molecular formula :
nature : the material is in critical condition at the pressure (pressure). The critical temperature is at the gas liquefaction required minimum pressure. Liquid is the critical temperature at the saturation vapor pressure. Various material critical pressure (pressure) different, such as oxygen is 4.87 MPa (49.7 kilograms of force / cm 2), ammonia is 11 MPa (112.2 kilograms of force / cm 2), the chlorine is 7.46 MPa (76.1 kilograms of force / cm 2).
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