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Adamsite or DM is an organic compound; technically, an arsenical diphenylaminechlorarsine, that can be used as a riot control agent. DM belongs to the group of chemical warfare agents known as vomiting agents or sneeze gases. First synthesized in Germany by Heinrich Otto Wieland in 1915, it was independently developed by the US chemist Roger Adams (for whom it is named) at the University of Illinois in 1918. In 2003, North Korea was reportedly producing Adamsite at its Aoji-ri Chemical Complex for stockpiling.

AttributesValues
rdfs:label
  • Adamsite
rdfs:comment
  • Adamsite or DM is an organic compound; technically, an arsenical diphenylaminechlorarsine, that can be used as a riot control agent. DM belongs to the group of chemical warfare agents known as vomiting agents or sneeze gases. First synthesized in Germany by Heinrich Otto Wieland in 1915, it was independently developed by the US chemist Roger Adams (for whom it is named) at the University of Illinois in 1918. In 2003, North Korea was reportedly producing Adamsite at its Aoji-ri Chemical Complex for stockpiling.
sameAs
ImageFile
  • Adamsite Adamsit.svg
dcterms:subject
dbkwik:military/pr...iPageUsesTemplate
SystematicName
  • 10(xsd:integer)
verifiedrevid
  • 477242031(xsd:integer)
ImageSize
  • 244(xsd:integer)
OtherNames
  • 10(xsd:integer)
  • Diphenylaminechlorarsine
Verifiedfields
  • changed
pin
  • Dibenzo-1-chloro-1,4-arsenine
ImageName
  • Structural formula of adamsite
abstract
  • Adamsite or DM is an organic compound; technically, an arsenical diphenylaminechlorarsine, that can be used as a riot control agent. DM belongs to the group of chemical warfare agents known as vomiting agents or sneeze gases. First synthesized in Germany by Heinrich Otto Wieland in 1915, it was independently developed by the US chemist Roger Adams (for whom it is named) at the University of Illinois in 1918. DM was produced and stockpiled by the United States at the end of World War I, but not deployed on the battlefield then. It was used against the Bonus Army who demonstrated in Washington, DC, in 1932, reportedly causing the death and serious injury of several children who had accompanied their parents on the protests. It was again used in the Vietnam War. DM is an odourless crystalline compound with a very low vapour pressure. The colour of the crystals ranges from bright yellow to dark green depending on the purity. It is readily soluble in some organic solvents (e.g., acetone, dichloromethane), but nearly insoluble in water. In vaporous form it appears as a canary yellow smoke. Adamsite is usually dispersed as an aerosol, making the upper respiratory tract the primary site of action. Although the effects are similar to those caused by typical riot control agents (e.g. CS), they are slower in onset and longer in duration, often lasting several hours. After a latency period of 5–10 minutes irritation of the eyes, lungs and mucous membranes develops followed by headache, nausea and persistent vomiting. DM is now regarded as obsolete. It has been widely replaced by riot control agents such as CS which are less toxic and more rapid in onset of symptoms. Early battlefield use was intended to be via "Adamsite candles". These were large metal cans or tubes (weighing approximately 5 pounds) which contained a smoke composition made of Adamsite plus a slow burning pyrotechnic composition. A series of candles were lit and the Adamsite-laden smoke allowed to drift towards the enemy. In 2003, North Korea was reportedly producing Adamsite at its Aoji-ri Chemical Complex for stockpiling.
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