Mercurous Salts, treated with iodide of potassium, give a green mercurous iodide; mercuric, a scarlet.
Nitric acid oxidizes it to mercuric nitrate, while potash or soda decomposes it into mercury and oxygen.
mercuric chloride and potassic ferrocyanide failed to produce this effect.
Dissolve the mercuric chloride in 60 of water, and the potassium iodide in the remainder, and mix the two solutions.
The negative is developed in the ordinary manner, intensified by mercuric chloride, and varnished.
From mercuric iodide and potassium iodide, equal parts, triturated together.
Picric acid, mercuric chloride, and alkaloidal “group reagents” give no precipitate.
mercuric salts become reduced to mercurous, whilst the salts of gold throw down a precipitate of the metal in fine powder.
On addition of a solution of mercuric chloride to the red filtrate, a brown flocculent precipitate was formed.
Other poisonous preparations are red precipitate, white precipitate, mercuric nitrate, the cyanide and potassio-mercuric iodide.
mercuric mer·cu·ric (mər-kyur'ĭk)
Relating to or containing mercury, especially with a valence of 2.
Containing mercury, especially mercury with a valence of 2. Compare mercurous.