Calomel (subchloride or Chloride of Mercury) is a heavy white powder, which is usually regarded as a safe medicine.
Ointment of subchloride of Mercury (Unguentum hydrargyri subchloridi).
Salt green, that is mentioned here, was a mixture of verdigris and subchloride of copper.
The subchloride may be directly formed, by pouring a solution of deuto-chloride of copper or iron upon silver leaf.
Subacetate of Copper, subchloride, and Carbonate, all act very similarly to the sulphate when given in large doses.
Should the subchloride again become chloride, it would be able to attack the silver afresh.