The aniline point is defined as_________________?
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Answer: C. Both A. and B.
Explanation
The aniline point measures the lowest temperature at which equal volumes of aniline and oil form a single homogeneous solution. Because aromatic hydrocarbons dissolve readily in aniline at lower temperatures, the test effectively indicates aromatic concentration. Consequently, the aniline point serves both as a characteristic property for diesel and lubricating oils and as a measure of aromatics. Aniline is an organic aromatic amine compound used as a standardized chemical solvent in petroleum testing laboratories. Paraffinic hydrocarbons have high aniline points, whereas aromatic compounds exhibit much lower aniline dissolution temperatures. Fuel characterization tests provide essential data for predicting ignition quality and combustion behavior in diesel engines.
Option A is partially correct as a characteristic property, but it overlooks the simultaneous measurement of aromatic content. Option B is also partially correct as a measure of aromatics, neglecting its direct role as a diesel fuel property. Option C is the correct comprehensive choice because both statements accurately describe the dual utility of the aniline point.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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