IODOLUM. 
Iodol. 
c 4 i 4 nh 
' 
Tetraiodopvrrol, a derivative of the base pyrrol (C 4 H 5 N) obtained 
b} T the direct action of iodine upon the base in the presence of alcohol. 
Properties. — A light, grayish-brown, crystalline powder without 
odor or taste. Very slightly soluble in water (1:4900), much more so 
in alcohol (1:9); soluble in fixed oils. 
Dose. — “Average dose: 0.250 Gm. =250 milligrammes (4 grains).” 
(U. S. P.) 
This is one of the vast number of compounds proposed in the last 
few } T ears as substitutes for iodoform. The iodine of iodol is appar- 
ent^ less easily split off the molecule than that of iodoform, and it is 
said to be less liable to produce poisoning. 
Other iodine compounds. — Among the enormous number of other 
iodine compounds proposed as substitutes for iodoform ma} T be men- 
tioned: Thymolis Iodidum (U. S. P., Eighth Decennial Revision, com- 
monly known as aristol ) ; airol (bismuth oxy-iodo-gallate, with 20 per 
cent of iodine); s anoforni (diiodo-methy lsalicylate) ; the potassium, 
sodium, mercury, and zinc salts of sozoiodolic acid (phenol-sulphonic 
acid in which two atoms of hydrogen have been substituted by two 
atoms of iodine — C 6 H 2 1 2 < q , known as sozoiodolates ; nosophen , 
antinosine , and eudoxine (all iodine compounds of phenolphthalein); 
losophan and europhen (combinations of cresol and iodine); loretin and 
mo form (derivatives of quinoline containing iodine); diiodoform 
(tetraiodoethylene, C 2 1 4 ); sodium diiodosalicylate; acetone iodide; 
iodoso-benzoic acid. etc. 
/ _ 
Various mixtures of iodoform and other substances have been made 
with the object of concealing the odor of the former; thus, eka-iodo- 
form is said to consist of iodoform and paraformaldehyde; anozol of 
iodoform and thymol; iodoformin of iodoform and hexameth}dene 
tetramine, etc. lodoformogen is a proteid compound of iodoform. 
Iodoformum Aromaticum, N. F., is a mixture of iodoform and 
coumarin. 
KAOLINUM. 
Kaolin. 
Official in the British Pharmacopoeia under same name. A 
native aluminum silicate, consisting largely of the pure silicate 
H 2 Al 2 Si 3 0 8 +H 2 0. It is a very pure cla} T . 
Properties. — Soft, white or yellowish-white powder, odorless, and 
having an earthy or clay-like taste. 
Insoluble in water. 
