What is its principal use in Pharmacy? As an 

 excipient for making pills. 



Name a volatile oil obtained from the animal 

 kingdom. Oil of Ambergris. 



What effect has water on Black Mustard? In con- 

 nection with the Myrosin contained in the Mustard 

 it converts theMyronate of Potassium (also present) 

 into a volatile oil. 



What are Carbohydrates? Substances composed 

 of carbon, hydrogen and oxygen, the two latter 

 being in the proportion to form water. 



What is Salt of Lemon? Oxalate of Potassium. 



Describe Oleic Acid. An oily liquid, having a 

 slight smell and pungent taste, soluble in alcohol 

 and ether, lighter than water, in which it is insolu- 

 ble, and crystallizable in needles at a temperature a 

 little below zero C. (32 F). 



What is Red Oil? Red Oil is crude Oleic Acid. 



What is Turlington's Balsam? Tinctura Benzoini 

 Composita. 



What is an element? A substance which cannot 

 by any known means be resolved into any simpler 

 form of matter. 



What is a Molecule? The smallest particle of 

 matter that can exist in a free state. 



What is an Atom? A particle of matter so small 

 that it undergoes no further subdivision in chemical 

 transformations. 



What salts are formed by the action of Iodine on 

 Potash? Iodide and lodate of Potassium. 



How would you separate the two? By dissolving 

 out the Iodide with spirit of wine, which leaves the 

 lodate. 



How is lodate detected in Iodide of Potassium? 

 To a solution of the sample add Tartaric Acid and 



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