If to the solution chloride of tin be added, a black precipitate of reduced metal and stannous oxide is thrown down, and the odour of prussic acid is developed.
Hydrosulphuric acid and sulphide of ammonium produce a black precipitate or discoloration in brandy containing lead.
Sulphide of ammonium produces a black precipitate, becoming brown on exposure to the air, insoluble in alkalies, but easily soluble in the mineral acids.
When pure it is attracted by the magnet, and is entirely soluble in hydrochloric acid; and ammonia added to the solution throws down a black precipitate.
In solutions of alkaline iodides, chloride of palladium produces a black precipitate.
In order to make sure that the precipitate consists of sulphate of lead, it is treated with a solution of tartrate of ammonia: it should dissolve, forming a solution in which sulphuretted hydrogen produces a black precipitate.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "black precipitate" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
