| Rating | Solver | Clue |
|---|---|---|
| DIOXIDE | Gas, carbon ... | |
| MONOXIDE | Poisonous gas: carbon — | |
| CARBURETED | Saturated or impregnated with some volatile carbon compound; as, water gas is carbureted to increase its illuminating power. | |
| TETRADECANE | A light oily hydrocarbon, C14H30, of the marsh-gas series; -- so called from the fourteen carbon atoms in the molecule. | |
| TETRAKOSANE | A hydrocarbon, C24H50, resembling paraffin, and like it belonging to the marsh-gas series; -- so called from having twenty-four atoms of carbon in the molecule. | |
| INCOMBUSTIBLE | Not combustible; not capable of being burned, decomposed, or consumed by fire; uninflammable; as, asbestus is an incombustible substance; carbon dioxide is an incombustible gas. | |
| INCOERCIBLE | Not capable of being reduced to the form of a liquid by pressure; -- said of any gas above its critical point; -- also particularly of oxygen, ... | |
| ACETYLENE | A gaseous compound of carbon and hydrogen, in the proportion of two atoms of the former to two of the latter. It is a colorless gas, with a pec... | |
| CYANOGEN | A colorless, inflammable, poisonous gas, C2N2, with a peach-blossom odor, so called from its tendency to form blue compounds; obtained by heati... | |