Examples from the Web for mercurous
The precipitate is allowed to settle for some time, filtered, and washed with a dilute solution of mercurous nitrate.A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
Thus each tablet of Syphilodol contains approximately, 3⁄4 grain of mercurous iodid.
Mercuric salts become reduced to mercurous, whilst the salts of gold throw down a precipitate of the metal in fine powder.Cooley's Practical Receipts, Volume II|Arnold Cooley
All these reactions are typical of mercurous iodid—yellow iodid of mercury.
The necessary amounts of Lithium and Mercurous Chloride are then intimately mixed and made into solution.