Mercury magnetic susceptibility

Grind mercury (I) chloride to a fine powder. Measure its magnetic susceptibility (Sec.2.1.3). How does the result help to elucidate the nature of Hg(l) ions ... 

Despite the importance of the magnetic properties of expanded fluid mercury, experimental difficulties related to the high critical pressure have prohibited measurements of the static susceptibility except close to r j. As discussed in Sec. 3.2.2, the Faraday method is not readily adapted to use with internally heated autoclaves and the high critical pressure prevents the use of sealed sample cells. Thus measurement of the static, uniform susceptibility of mercury under conditions close to the critical point remains an open challenge to experimentalists. 

---