Hydrochemistry & Water Analysis

aqion is a free hydrochemistry software that

aqion uses the well-known U.S.G.S. software PhreeqC as an internal numerical solver.

aqion is free for private users, education and companies. In addition there is the affordable software aqion PRO as an extended version. Both programs run on Windows XP, Vista, Win 7 and 8.

aqion 5.14.0
(released 23 Nov 2015)