METHOD OF MEASURING LIQUID-LIQUID PHASE TRANSITION PARAMETERS IN AQUEOUS SOLUTIONS Russian patent published in 2011 - IPC G01N15/06 

FIELD: physics.

SUBSTANCE: method of identifying and measuring liquid-liquid phase transition parameters in aqueous solutions and the influence thereon by external effects by dissolving s-alkylisothiuronium halides in water and measuring pH of the solution depending on concentration. ATG is taken with chain length from C₂ to C₁₄ with halogens chlorine, bromine and iodine. The phase transition parameters determined are the region of concentration where the transition takes place; average concentration; degree of cooperativeness and "depth" of transition. The external effects used are: adding substances - inorganic electrolytes, organic electrolytes, non-electrolytes; varying temperature and pressure; magnetic and electromagnetic fields; mechanical vibrations.

EFFECT: method of identifying LL-transition, using said method to measure LL-transition parameters and the effect of external conditions, adding other substances and different fields on the parameters.

5 cl, 1 dwg