Asphalt wax content tester, dissolve the distilled oil obtained by cracking the distillation sample with a mixed solvent of ethyl ether and ethanol, and cool it at -20℃, filter the precipitated wax, and dissolve the filtered wax with petroleum ether. The solvent is evaporated, and then recrystallized with acetone, the precipitated wax is dissolved with petroleum ether, the solvent is evaporated from the solution, dried, and weighed.
Asphalt wax content tester, dissolve the distilled oil obtained by cracking the distillation sample with a mixed solvent of ethyl ether and ethanol, and cool it at -20℃, filter the precipitated wax, and dissolve the filtered wax with petroleum ether. The solvent is evaporated, and then recrystallized with acetone, the precipitated wax is dissolved with petroleum ether, the solvent is evaporated from the solution, dried, and weighed.
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