Poisons, Their Effects and Detection / A Manual for the Use of Analytical Chemists and Experts

by Alexander Wynter Blyth

Liquor Ammonii Arsenitis (not officinal) is made of the same strength, ammonium carbonate being substituted for potassic carbonate.

The hydrochloric solution of arsenic is simply arsenious acid dissolved in hydrochloric acid; its strength should be exactly the same as that of Fowler’s solution.

A solution of arseniate of soda[708] contains the anhydrous salt in the proportion of 4 grains to the ounce (·9 in 100 c.c.) of water.

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[708] The formula for arseniate of soda is Na₂HAsO₄7H₂O, but it sometimes contains more water.

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Liquor Arsenii et Hydrargyri Iodidi (Donovan’s Solution of Arsenic).—This is not officinal, but is used to some extent in skin diseases; it is a solution of the iodides of mercury and arsenic; strength about 1 per cent. of each of the iodides.

Arseniate of Iron, Fe₃As₂O₈, is an amorphous green powder, used to some extent in medicine. It should contain 33·6 per cent. of metallic arsenic.

Clemen’s Solution.—A solution of the bromide and arseniate of potassium; strength equal to 1 per cent. arsenious acid. Officinal in U.S., France, and Norway.