The chemical nature of the main substance used can now be stated. It is dichloro-diethyl-sulphide, or mustard gas. Three other substances of similar efficiency were found, all of them chemically ...

As ships in the harbor sank, men threw themselves into water poisoned by the Harvey’s secret cargo: 2,000 mustard gas bombs. Sailors were drenched in liquid mustard gas, or sulfur mustard, which ...

The Human Rights Watch’s report that a Soviet bomb was used in an alleged chemical attack on the ... OPCW mission’s report that sulphur mustard gas was used in the Syrian village of Maarat ...