Alternative form of town gas

A gasworks apparatus within which gas from the condenser is brought in contact with a falling stream of water, to precipitate the tar remaining in it.

Water through which gas has been passed for purification, and used for the manufacture of sal ammoniac, carbonate of ammonia, and Prussian blue.

(underwater diving) A mixture of gases used for respiration in breathing equipment, typically in scuba diving.

A chemically inert gas used as the mobile phase in gas chromatography

Any nonreactive gas that is used to fill containers of perishable produce, tyres etc

(physics) A tall, slim centrifuge that is used to separate gases containing different isotopes

A bituminous or hydrogenous coal yielding a high proportion of volatile material, and therefore available for the manufacture of illuminating gas.

coal tar

A kind of gas made by forcing air through a volatile hydrocarbon, such as the lighter petroleums. The air is so saturated with combustible vapour as to be a convenient illuminating and heating agent.