Contractions. - Ferri-i. F-io.
Present name. - Ferrous Iodide. FeI2.
The British Pharmacopoeia directs a syrup to be prepared as follows: -
Fine Iron Wire ....
Refined Sugar ....
Distilled Water ....
13 fluid ounces.
Prepare a syrup by dissolving the sugar in 10 ounces of the water with the aid of heat. Digest the Iodine and the Iron Wire in a flask at a gentle heat, with the remaining 3 ounces of the water, till the froth becomes white; then filter the liquid while still hot into the syrup, and mix. The product should weigh 2 pounds 11 ounces, and should have the specific gravity 1.385 .
Preparation. - The above contains 1 grain in 14 minims; and hence 14 minims diluted with 86 minims of Syrupus Simplex P.B., will make 1. Distilled water to which 5 per cent. of rectified spirit has been added should bo used for 3x, dilute alcohol for 2, and rectified spirit for 5x and upwards.
Reference to Horn. Proving. - Thompson's Observations on Iodide of Iron.