Petroleum lubricating oils

Oxygen gas contacts oil film remaining in oxygen distribution system after installation No- pressurized, enclosed R NOAA Worksheet indicates mixing 02 with petroleum lubricating oil may cause fire reaction may cause pressurization... 

CA 15, 1622 (1921) (A desensitized expl, prepd by mixing undried Nitrostarch with heavy petroleum lubricating oil and gum arabic, was insensitive to rifle bullet) 2)W.H.Ward, USP 1462753 (1923) CA 17, 3101 (1923) [A desensitized exp suitable for use in drop bombs and trench mortar shells consists of Nitrostarch 40 45, inorg nitrate (such as of Na or K) 32 40, heavy lubricating petroleum oil up to 5 and water 5 10%] 3)L.Wohler, SS 20, 166 (1925) (Desen-... 

Organophosphorus compounds are also becoming essential as antioxidants of petroleum lubricant oils, as synthetic lubricants and plastifiers for various polymers. Organophosphorus compounds are widely used to obtain substances which do not sustain combustion, because they are highly efficient fire retardants. 

Although the methyl silicone oils are soluble in benzene and in the lighter hydrocarbons, they are only partially soluble in alcohol and in the heavy hydrocarbons. The relative insolubility in petroleum lubricating oil may be the reason for the success of silicone oils in suppressing foam in certain engine oils at the limit of solubility the silicone may set up a high local concentration at the oil-air interface and so exercise a surface-active effect. Whatever the mechanism, a very... 

Classification of petroleum lubricating oils according to the type of crude they come from or the refining procedures used to obtain them is neither illogical nor grossly empirical. The physical and chemical properties of an oil depend on its composition, which in the last analysis is determined by the composition of the crude. Thus the nature... 

Petroleum lubricating oils are sometimes characterized by their density. As will be seen when we come to the examination of chemical structures in lubricating oils later in this chapter, density is associated with structural type. Paraffinic oils are lower in density than naphthenic or aromatic oils. Since paraffinic oils show more desirable viscosity-temperature behavior and better thermal stability than naphthenic oils, in the past density was widely used as an easily measured indicator of oil quality. With the development of additives to improve viscosity and thermal stability behavior, classification of oils by their density ratings has lost much of its former importance. 

Macroscopic separation of a lubricating oil into fractions is tedious and laborious, and from the viewpoint of petroleum technology and lubrication engineering, characterization of an oil by methods which require such separations is not practical for ordinary purposes. Consequently, side by side with procedures directly based on fundamental data, there are also indirect methods of assaying petroleum lubricating oils for type structures via trends displayed by physical properties such as viscosity, density and refractive index. 

Source J. B. Hill and H. B. Coats, The Viscosity-Gravity Constant of Petroleum Lubricating Oils, Ind. Eng. Chem., vol. 20, pp. 641-644, (1928). With permission. 

USE As a basis, for silicone oils or fluids designed to with -stand extremes of temp as a foam suppressant in petroleum lubricating oil. 

Petroleum Fractions. Oleum and SO3 are employed in the manufacture of oil-soluble sulfonates from petroleum lubricating oils. These products are consumed in thousands of tons annually as rust preventives, additives for heavy-duty engine lubricants, and emulsifiers. They are obtained as a by-product from the manufacture of mineral white oils, but since World War II the demand for the sulfonates has increased so much more rapidly than that for white oil that the former are now produced per se. 

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