Element

• noble gas

  Any of the chemically inert gaseous elements of the helium group in the periodic tabl...

• N

  A common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas;...

• chlorine

  A common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating...

• H

  A nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic...

• O

  A nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic...

• F

  A nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable...

Fuel

• butane

  Occurs in natural gas; used in the manufacture of rubber and fuels.

• propane

  Colorless gas found in natural gas and petroleum; used as a fuel.

• water gas

  A mixture of hydrogen and carbon monoxide with small amounts of other gases; made by blowing...

Chemical Weapon

• tear gas

  A gas that makes the eyes fill with tears but does not damage them; used in dispersing...

• poison gas

  A gas that is poisonous to breath or contact; used in chemical warfare.

Dioxide

• nitrogen dioxide

  A highly poisonous brown gas (NO2).

• sulfur dioxide

  A colorless toxic gas (SO2) that occurs in the gases from volcanoes; used in many...

Also contains

• air

  A mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists...

• atmosphere

  The envelope of gases surrounding any celestial body.

• greenhouse gas

  A gas that contributes to the greenhouse effect by absorbing infrared radiation.

• butylene

  Any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers.

• methane

  A colorless odorless gas used as a fuel.

• ozone

  A colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced...

• compressed gas

  Gas at a high pressure that can be used as a propellant.

• ethylene

  A flammable colorless gaseous alkene; obtained from petroleum and natural gas and used...

• sublimate

  The product of vaporization of a solid.

• blow gas

  The gas leaving a generator during a blow period.

• cyanogen

  A colorless toxic gas with a pungent almond odor; has been used in chemical warfare.

• ideal gas

  A hypothetical gas with molecules of negligible size that exert no intermolecular for...

• phosphine

  A colorless gas with a strong fishy smell; used as a pesticide.

• formaldehyde

  A colorless poisonous gas; made by the oxidation of methanol.

• phosgene

  A colorless poisonous gas that smells like new-mown hay; used in chemical warfare.

• inhalant

  Something that is inhaled.

• nitric oxide

  A poisonous red-brown gas (NO).

• liquefied petroleum gas

  Hydrocarbon gases, usually propane or butane, kept under pressure.

• exhaust

  Gases ejected from an engine as waste products.

• mephitis

  A poisonous or foul smelling gas emitted from the earth.

• afterdamp

  A toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after...

• sewer gas

  Foul-smelling gas that forms in sewers.

• firedamp

  A mixture of gases (mostly methane) that form in coal mines and become explosive when mixed...

• producer gas

  A gas made of carbon monoxide and hydrogen and nitrogen; made by passing air over hot...

• arsine

  A poisonous colorless flammable gas used in organic synthesis and to dope transistors and...

• propylene

  A flammable gas obtained by cracking petroleum; used in organic synthesis.