... .2 ; (tech., 47.5-48.5 ) B.p. Does not boil at atmospheric pressure V.p. 2 ?10-4 mPa (20 , est.); 2 ... months at 15-25 . pKa >9 (hydrolysis prevents measurement) F.p. 185 (tech., Pensky-Martens closed cup) COMMERCIALISATION History Insecticide reported ... cotton and soya bean leaves, see D. A. French & J. P. Leahey, Proc. Br. Crop Prot. Conf. - Pests Dis., 1990, 3 ...