199Hg NMR of aqueous solutions of inorganic mercury salts. Chemical shifts of HgCl2 − n with n = 0–4

119Hg NMR chemical shifts of the stable mercury species HgCl with n = 0–4 were determined by a least-squares algorithm from 199Hg chemical shifts measured in 50 mM aqueous mercury solution as a function of the chlorine concentration at 25°C. The concentrations of the corresponding mercury species in the solutions necessary in this special procedures were calculated by using published equilibrium constants. The results relative to dimethyl-mercury are −2256 ppm (Hg2+), −1897 ppm (HgCl+), −1560 ppm (HgCl2), −1436 ppm (HgCl3−) and −1152 ppm (HgCl) with maximum errors of ±5 ppm.