Chloropicrin's chemical formula is CCl3NO2 and its molecular weight is 164.38 grams/mole.[6] Pure chloropicrin is a colorless liquid, with a boiling point of 112 °C.[6] Chloropicrin is sparingly soluble in water with solubility of 2000 mg/L at 25 °C.[6] It is volatile, with a vapor pressure of 23.2 millimeters of mercury (mmHg) at 25 °C; the corresponding Henry's law constant is 0.00251 atmosphere-cubic meter per mole.[6] The octanol-water partition coefficient (Kow) of chloropicrin is estimated to be 269.[6] Its soil adsorption coefficient (Koc; normalized to soil organic matter content) is 25 cm3/g.[6]