60 
ON THE PREPARATION OF IODIDE OF IRON. 
to the Syrup, or whether after the Syrup is made, the aug- 
mentation of bulk may render evaporation necessary, the 
Syrup, when completed, should measure exactly twelve fluid 
ounces and a half. 
This Syrup, well prepared, undergoes no decomposition 
when it is exposed to the air or the light. It admits of com- 
bination with astringent vegetable infusions, decoctions, and 
tinctures, and also with the diluted mineral acids, all of which 
decompose the aqueous solution of the Iodide. To make the 
crystallized Iodide, the Syrup should be exposed to a warm 
dry air in a shallow vessel until crystals form. 
The same method may be employed for making the syrup 
of Iodide of Zinc, which may be crystallized also, in the 
same manner as that of Iron. 
I propose to name the crystallized Syrup, Crystalli Ferri 
Iodidi Saccharati. 
The specimen of the Syrup, which accompanied this Essay, 
was prepared in December, 1840, and has remained perfectly 
limpid. 
Lond. Pharmaceutical Transactions, August, 1841. 
