Disposal of spent shale includes environmental problems because it is very finely crushed and contains carbon residue.

The beam heats the skin to about 1,000 degrees, leaving only a trace of carbon residue.

Charcoal results from organic matter exposed to high temperatures, which drives off volatile elements and leaves a carbon residue.

The low soft carbon residue that is left behind is removed easily by wiping.

What emerges is fine mesh held together by the carbon residue of the resin.

The materials used for the experiment were synthesized from carbon-containing substances and retained carbon residue.

There are three methods to calculate this carbon residue.

This carbon residue is called charcoal, which may come from old words meaning "turning to ember."

The soils were analyzed for the proportion of two types of carbon residue.

At best, they left carbon residue on the oven floor.