Table 1.

Physicochemical properties of sulfur mustard

Chemical formula	C4H8Cl2S
Appearance	Oily liquid, light yellow to dark brown
Odor	Mustard, garlic, and onion
Molecular weight	159.08
Liquid density	1.27 (specific gravity)
Freezing point	13°C–14°C
Boiling point	215°C–217°C
Volatility (mg/m3, 20°C)	610
Solubility	Poor in water, high in ethanol