Circular 21 - Insecticides and Subsidiary Materials 77 
TARTAR EMETIC 
One of the insecticidal uses of tartar 
emetic is in ant poisons, especially for such 
species as prefer grease and meat to sweetened 
baits. A small quantity of it is worked into 
grease or bacon rind and placed in locations 
where ants will feed upon it. For this pur- 
pose tartar emetic, technical grade, is suit- 
able and is available commercially in the form 
of a white powder. 
Tartar emetic, K(SbO)CyH, O^.^HpO, is a 
white, crystalline salt known chemically as 
potassium antimonyl tartrate. It has a 
sweetish, metallic taste and is poisonous. 
This substance is used in the dyeing industry, 
in medicine, and as an insecticide in the 
control of certain species of thrips. 
Caution ; Since tartar emetic is 
poisonous, care should be used in handling it, 
and it should be kept in plainly labeled con- 
tainers marked "Poison.** 
This chemical is packed in 200- to 700- 
pound barrels, 100-pound kegs, 25- to 50-pound 
boxes and in bottles. The barrels cost from 
44-3/4 to 50 cents per pound. 
For manufacturers and distributors 
see numbers 10, 49, 89, and 96 of list at end 
of this circular. 
