Qualitative analysis / by William Briggs and R.W. Stewart.

  • William Briggs
Date:
1913
Catalogue details

Licence: Public Domain Mark

Credit: Qualitative analysis / by William Briggs and R.W. Stewart. Source: Wellcome Collection.

    117/180 (page 101)
    The separation of AgCl, Hg2Cl2, and PbCl2 is based on — (a) The solubility of PbCl2 in hot water, Hg2Cl2 and AgCl being insoluble; (b) The solubility of Hg2Cl2 by conversion into HgCl2 with aqua regia (see p. 20), AgCl being insoluble. Lead chloride is slightly soluble, even in the cold, and hence, if lead is found in this group, there will be a little carried forward to Group II. It should also be remembered that mercurous salts are precipitated in Group I., and mercuric salts in Group II.