Sarin , physical/chemical properties

Molecular models of the nerve agents tabun, sarin, soman, and VX are shown in Figure 5-3. Table 5-3 summarizes the chemical, physical, environmental and biological properties of these compounds. 

Chemicals such as mustard (a blister agent) and sarin (a nerve agent) can form toxic vapors at room temperature. Agents that share this physical property could be employed in crude but still very deadly attacks without sophisticated dispersal devices. Other, more viscous compounds such as VX are much less prone to evaporation even at higher temperatures, and for this reason present more of a hazard as a skin contaminant. 

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