A residue containing gangue, barium, radium, and lead sulfates will be left over.

This residue contains a few percent by weight of phenol and cresols.

This residue contained large amounts of coronene and ovalene.

The fragments, wreckage and residues may also contain toxic substances or be radioactive.

He hypothesized that the residue contained iron and interpreted this to be the transmutation of carbon to iron.

These residue contains a few percent by weight of xylenols as well as cresols and phenol.

The residue may contain various undesirable impurities including 2 percent water and one-half percent mineral soil.

Smelter slag and other residues of process also contain significant amounts of heavy metals.

The residue contains the earliest chemical evidence of wine, a team of archeologists said in a report being published today in the journal Nature.

Depending on the procedure, the residue may contain metal catalysts or acid catalysts to help with the reaction.