Table 1.

Selected physical properties of VX, EMPA, MPA and iPMPA [17]. NA, not available; Y, yes; N, no.

analyte	vapour pressure (mmHg)	water solubility (g l−1)	pKa (25°C)	log Kow	white mustardc uptake by
VX	7.0×10−3	30	9.40a	+2.09	Y
EMPA	3.6×10−4	180	2.76	−1.15	N
MPA	2.0×10−6	>1000	2.38, 7.74b	−2.28	Y
iPMPA	3.4×10−3	48	1.98	NA	Y

^aFrom ref. [38].

^bFrom ref. [41].

^cFrom this paper and ref. [23].