O-mustard (T) is a vesicant chemical weapon, a type of mustard gas, with around three times the toxicity of the original sulfur mustard. It was developed in England in the 1930s as a thickener for mustard gas to make it more persistent when used in warm climates. A mixture of 60% sulfur mustard and 40% O-mustard also has a lower freezing point than pure sulfur mustard, and was given the code name HT. O-mustard is a Schedule I substance under the Chemical Weapons Convention.[1][2][3][4]

See also

References

  1. "FM 3–8". Chemical Reference Handbook. US Army. 1967.
  2. Alexander V, Emelyanov VI (1990). Отравляющие вещества [Poisonous Substances.] (in Russian). Учебное пособие. — M.: Воениздат. p. 271. ISBN 5203003416.
  3. Ellison DH (2008). Handbook of Chemical and Biological Warfare Agents. (Second ed.). CRC Press. pp. 157–159. ISBN 9780849314346.
  4. Hoenig SL (2006). Compendium of Chemical Warfare Agents. New York, NY: Springer-Verlag. ISBN 9780387346267.