Determination of aniline point of petroleum samples. Aniline point is the minimum temperature for a complete mixing of aniline and materials such as gasoline. Standard test methods for aniline point and mixed aniline. The measuring cell can be cleaned without disassembling, which makes the cleaning easier and safer. Aniline point determination bydiar ismail slideshare. Aniline point is the minimum temperature for complete solubility of an oil sample in aniline. Pdf aniline an is an important organic chemical commodity with an annual worldwide production at levels of mt. Its boiling point is 184 degree centigrade and its melting point is 6 degree centegrade. Aniline point definition of aniline point by merriamwebster. Aniline point and mixed aniline point of petroleum. Pdf determination of aniline point of petroleum samples. The aniline point of an oil is defined as the minimum temperature at which equal volumes of.
Test method a is suitable for transparent samples with an initial boiling point above room temperature and where the aniline point is below the bubble point and above the solidification point of the aniline sample mixture. Petroleum products and hydrocarbon solvents determination. Determination of aniline point of dark petroleum oils. Field experience and laboratory tests have indicated that oils with a high aromatic content were more detrimental to rubber products than those with a low aromatic content. Determination of aniline point of dark petroleum oils analytical. Development of new algorithm for aniline point estimation of. Critical solution point for the anilineoil system as a measure of oil solubility, fuel 86. Note 2 the aniline point or mixed aniline point is useful as an aid in the characterization of pure hydrocarbons and in the analysis of.
Aniline point and mixed aniline point of petroleum products and hydrocarbon solvents1 this standard is issued under the fixed designation d 611. D college of engineering, organized by coanchor instituteldce. Aniline point lab report free download as word doc. Pdf aniline point is the minimum temperature for a complete mixing of aniline and materials such as gasoline. When used as a solvent, it is selective to aromatic molecules at low temperatures, and paraffins and naphthenes at higher temperature. Aniline point definition is the lowest temperature at which aniline and a solvent as gasoline are completely miscible and which serves as an indication of the type of hydrocarbons present in the solvent, the content of aromatics being higher according as the temperature is lower.
Aniline is oily and, although colorless, it can be slowly oxidized and resinified in air to form impurities which can give it a redbrown tint. Aniline point apparatus, thermometer, electric heating device, pipette etc. Classification of crude oils and its fractions on the basis of. Aniline point lowest temperature at which equal volumes of fresh aniline and an oil are completely miscible.
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