in further solvent(s) 25°C, stainless steel vessel, aq. soln. of 10percent w/w Triton X-100 and titration with NH4NCS, NaNCS and LiNCS or aq. soln. of 1-5percent w/w Triton X-100 and titration with NaNCS; not isolated; detn. by calorimetric measurement;