Hydrogen cyanide was used by the Nazis in Auschwitz and other extermination camps.
The state of Arizona has plans to use hydrogen cyanide, the deadly gas used by the Nazis at Auschwitz and other extermination camps, to kill inmates on death row, documents obtained by The Guardian's Ed Pilkington showed.
The Arizona Department of Corrections spent more than $2,000 in procuring the ingredients for the gas, The Guardian reported, citing the partially redacted documents.
The ingredients purchased include a solid brick of potassium cyanide, sodium hydroxide pellets, and sulfuric acid, the documents showed.
The department has also refurbished a gas chamber in Florence, Arizona, that was built in 1949 but had not been used for 22 years, The Guardian reported.
Pentobarbital is a sedative often used in vet clinics or physician-assisted suicides in Europe, The New York Times reported in 2011.
It's also used in Arizona in 5-gram doses to cause a fatal overdose, The Guardian said. »