Cryogenic liquid properties

Table 8.4 Physical properties of selected cryogenic liquids ...

TABLE I Selected Properties of Cryogenic Liquids at Normal Boiling Point... 

Pyrolysis followed by cryogenic quench has been unsuccessfully used in attempts to prepare S2 as a cryogenic liquid which was predicted to be similar to O2. A hot glowing wire or refractory submerged in liquid air or liquid O2 will yield O3 but no NO. Colored modifications of metals such as red selenium, yellow arsenic, or red magnesium have been similarly produced and apparently have unusual properties. 

PROPERTIES OF SOME CRYOGENIC LIQUIDS FROM SOUND VELOCITY DATA... 

Properties of Some Cryogenic Liquids from Sound Velocity Data... 

Table 1 Thermophysical Properties of Cryogenic Liquids Near the Melting Point at Atmospheric Pressure...

In order to maintain adequate lubrication, the wear rate of the lubricant must be controlled when it is introduced as a solid at the interface, where its properties and those of the cryogenic liquid will be influenced by the much higher temperature and vapor phase conditions which exist at this point. The over-all heat transfer, and therefore the interface temperature, depends on a considerable number of factors, with thermal conduction paramount. Since a solid lubricant with poor thermal conductivity is desirable for tensile property reasons, arrangements must be made elsewhere in the lubricant housing and the mating components favorable to good therm.al conductivity. 

There is a great deal of information available on the physical and chemical properties of compressed gases and cryogenic liquids and the precautions to follow for their safe storage, transport, handling, and use. Years of experience with these products have resulted in numerous safety regulations, standards, guidelines, product and equipment specifications, and recommended practices and procedures. 

Water Preferred Used to protect adjacent equipment or property and to spray personnel. Not to be applied directly onto burning vapor or cryogenic liquid, since the water will evaporate additional flammable material. 

A V-5 Safe Handling of Liquefied Nitrogen And Argon. Covers properties of cryogenic liquids, con-... 

Because of their different physical and chemical properties, the various cryogenic liquids have their own peculiar requirements, some of which are discussed below. 

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