CAS RN: 505-60-2

Other Properties

Reacts with sulfhydryl and imidazole groups; products of hydrolysis are thiodiglycol and hydrochloric acid
Mustard gas in an aqueous medium rearranges into a cyclic sulfonium form which is highly reactive
First order rate constant for reaction with water at 37 deg C = 33/hr
Half-life of hydrolysis (hr) = 0.02
Substrate constant S = 0.95; value of S = 1.00 for methyl bromide is the reference standard /Mustard gas cation/
Hydrolyzed by alkalies; volatile with steam
Volatile enough to be effective as a vapor in warm weather
Air/water partition coefficient: -2.87 (log)
Bleaching powder and sodium hypochlorite are recommended as neutralizing agents and inactivators.
Freezes at about 10 deg C
Volatility: 925 mg/cu m at 25 deg C
Henry's Law constant= 2.45X10-5 atm-cu m/mole at 25 deg C
Hydroxyl radical reaction rate constant = 7.82X10-12 cu cm/molec-sec at 25 deg C (est)
Find more information on this substance at: PubChem, PubMed