Liquid oxygen composition

Although the above are riot practical LOX compositions, these results are of considerable interest. They show that the detonation limits of LOX compns are quite wide, and that D (at least for liquid methane-liquid oxygen mixtures) is not strongly affected by considerable changes in compn or even density... 

After the liquefaction of air had been achieved by Olszewski and Wroblewski [3] and on a large scale by Linde [4] the use of liquid oxygen as an oxidizing agent became possible in composite explosives called Oxyliquits (Linde [5]). 

The disadvantage of employing liquid air is that it usually contains less than 33% oxygen which is not always enough for complete combustion. Moreover the composition of liquid air undergoes continuous alteration on storage. Liquid air has therefore been superseded by 98% liquid oxygen. 

A disadvantage of mixtures of liquid oxygen with combustible substances lies in their high sensitiveness to impact and friction. This property depends largely on the composition of the combustible material used. Oxyliquits containing sawdust show the lowest sensitiveness, while those containing hydrocarbons (e.g. naphthalene) pitch or petrol are more sensitive. 

It is generally believed that the silica sol consists of colloidal particles (15) the oxygen-silicon tetrahedra are present inside the particles, and the hydroxyl groups may appear only on the surface. Initially the reaction with aluminate takes place predominantly on the surface, but our results on prolonged aging and crystallization indicate that the colloidal particles decompose slowly, and this results in solid and liquid phase compositions similar to that observed if the zeolite were synthesized from metasilicate. 

Commercial liquid oxygen may contain argon. Morey 3 found the composition of liquid oxygen to be as follows ... 

Liquid oxygen and nitrogen mix without appreciable change m volume hence the approximate composition of the liquid mixture can be calculated from its density at any particular temperature.1 Measurements which have been made lead to the expression... 

Composition They consist of an absorbent carbonaceous material in a canvas wrapper soaked with liquid oxygen. 

What happens with water also happens with many other substances. Changing states does not alter the chemical composition of the substance. For example when you cool oxygen gas (O ) to very low temperatures, it becomes liquid oxygen that is composed of molecules. The only difference between liquid and gaseous oxygen is how strongly the molecules are held together. 

Before the apparatus was assembled, the volume of the U-tube was determined as a function of the distance from a reference mark at the bottom of the tube. The volume of liquid ozone collected was then determined by reading the liquid level with a cathetometer. The liquid level was viewed through an unsilvered strip in the Dewar flask and the boiling liquid oxygen (or nitrogen) which was used as a refrigerant. The distortions inherent in these readings limited the accuracy, but the compositions at the liquid phase boundaries were reproducible within 0.5%. 

U.S. Pat No. 6,578,368 [51] discloses a method for cooling extruded and molded cellulosic-polymer composites, among other plastics and plastic compositions the said method uses cryogenic fluid with a temperature below about 250° F, such as liquid oxygen, liquid nitrogen, liquid neon, liquid hydrogen, and liquid helium. 

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