Oil Lamp Soot
This is soot from the glass chimney of an oil lamp. The sample was collected with Scotch Brand Magic Tape.
Transmitted Off-Crossed Polarized Light and Reflected Darkfield Illumination
Definition/Function:
Soot is the product of a gas-phase to particle transition. A hydrocarbon vapor reacts with oxygen at an elevated temperature. Hydrogen has a lower activation energy and is oxidized first. If there is insufficient oxygen or the temperature of the vapor is reduced by the draft then some of the residual molecular carbon is not consumed. These particles agglomerate in the particle dense plume and become condensation nuclei for vapors still in the plume. The higher the condensible vapors the larger the agglomerates.
Significance in the Environment:
Characteristic Features:
Associated Particles:
References:
Crutcher, Russ, "Scotch Magic Tape and the analysis of settled dust", The Microscope, vol. 70, no. 4, pp. 161-167, 2023.
Han, Yongming, "Research progress of black carbon geochemistry--Soot and char in the environment", 2016.