colourless gas

It is a colourless gas at room temperature and pressure.

Ozone is a colourless gas that forms in the air.

The colourless gas was once used in the polymer industry.

About 600 tonnes of the colourless gas are emitted each year.

Sulphur dioxide is a colourless gas with a strong odour.

The answer (which you probably know) lies in the activities of ethene, a colourless gas.

It is a colourless gas with a characteristic pungent smell.

After examination it was confirmed as ethylamine, a colourless gas.

It is a colourless gas described as having a "repulsive" odor.

Ozone is a colourless gas composed of three oxygen atoms (O3).

This clear, colourless gas is highly explosive and flammable.

The molecular form is a colourless gas, and very unstable toward thermal decomposition.

It is a colourless gas that cannot persist undiluted.

His struggles with the concept of a colourless gas being tradable at an international level are a matter of record.

Ozone is a colourless gas which is found in the region of the atmosphere known as the stratosphere.

Ground level ozone is a colourless gas, a strong oxidant and a major component of smog.

One of the few hydrides of germanium, it is a colourless gas.

This colourless gas is an strong oxidant that was once a candidate oxidizer for rockets.

It is a colourless gas that only persists at elevated temperatures or in dilution.

A colourless gas that smells like burnt matches.

One form of carbon compound (the solid wood) was simply being converted to another (a colourless gas) which blew away.

A colourless gas with a sharp irritating odour.

Low levels of this odourless, colourless gas can cause tiredness, headaches or nausea.

This colourless gas has a strong ammonia-like odor.

The odourless, colourless gas is deadly if there is high or prolonged exposure.