in hydrogenchloride 9.2 g commercially avaiable Ru-chloride in 50 ml 0.5 m HCl is refluxed over Hg for 24 h; the mer(trans)-compound is main product;; separation of the two isomeres by ionic exchange chromy. with H2O over Dowex-50 W and Dowex-1 at 0°C (UV-spect. determined); cryoscopic and gravimetric determination of the chemical compn.;;

in water prepn. by freeze drying of aq. RuCl3-fractions (received by ion exchange) at -20°C;; powdered RuCl3*3H2O is converted into crystalls by dissolving in H2O andsubsequent freeze drying;;

in hydrogenchloride the two isomeres are formed from a soln. of K2(RuCl5H2O) in 0.05 M HCl, aged for 12-15 h at ambient temp.;; separation of the two isomeres by ionic exchange chromy. with 0.01 M HClover Dowex-50 W and Dowex-1 at 0°C; determination of purity by UV-spectroscopy;;

in water Kinetics; isomerisation of mer(trans)-(RuCl3(H2O)3) to the fac(cis)-compound at 25°C (ionic concn.=1); rate of reaction and back reaction given;; not isolated;;

in water Kinetics; isomerisation of mer(trans)-(RuCl3(H2O)3) to the fac(cis)-compound at 25°C (ionic concn.=1); rate of reaction and back reaction given;; not isolated;;