Army poster about phosgene from World War II Īccording to a book on the history of chemical weapons, the most toxic and effective blood agents are hydrogen cyanide and phosgene followed by cyanogen and arsine then cyanogen chloride and finally vinyl arsine.

Phosgene gas is colorless, but liquid phosgene is a very light yellow.

Gets through gas mask filters more easily than any other blood agent Ĭreated when arsenic is mixed with an acidĪll of these chemicals are colorless, except for phosgene.

Below is some information about the blood agents that are most likely to be used as weapons of mass destruction: Blood Agentīoils just above room temperature, at 25.6 ° C (78.1 ° F)Īlso irritates the eyes and respiratory systemĪlso irritates the eyes and acts like a choking agent However, other blood agents are based on arsenic. The most common types of blood agents are chemical compounds that include cyanide. When they are used on purpose to kill many people, blood agents are weapons of mass destruction (WMDs). In high enough doses, blood agents can make a person suffocate. Blood agents can cause life-threatening symptoms like seizures or coma, which happen because the brain is not getting enough oxygen. Every part of the body needs oxygen to survive. A blood agent makes it impossible for a person's blood to hold oxygen and bring it to the rest of the body.

Arsenic poisoning antidote