Year: 2025
Type: article
Abstract: - Volatility, defined as the propensity of a liquid to vaporize under equilibrium conditions, critically influences engine start-up and emission profiles. This study presents the design and fabrication of a custom distillation apparatus to determine petrol purity by generating distillation curves for two commercial samples. We introduce an air-cooled condenser configuration optimized for low-cost laboratories, addressing gaps in simple, reliable volatility measurement techniques. Experimental results demonstrate repeatable distillation curves with less than 2% deviation between trials. Sample 2 exhibited a 15% steeper initial slope and lower onset temperature (43°C vs. 47°C) compared to Sample 1, indicating higher volatility. These findings validate the apparatus’ accuracy and highlight its utility for routine quality control in resource-constrained settings. Key Words: Distillation, Volatility, Condensation, Fuel, Evaporation.
DOI: 10.55041/ijsrem48683
Author: Kommana Srinivas
Institution: Siddhartha Academy of Higher Education
Language: English
Subfield: Physical and Theoretical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4410707306