MIDTERM 03 - Solutions Flashcards
A homogenous mixture of solid, liquid, or gas in a liquid vehicle
Solution
2 types of solutions (AN)
Aqueous, Non-aqueous
Solution that uses water as a vehicle (Types of solutions)
Aqueous solution
Solution that uses alcohol, oil, and ether as vehicles (Types of solutions)
Non-aqueous solution
Solution that uses alcohol as a vehicle (Types of non-aqueous solutions)
Hydroalcoholic
Solution that uses oil as a vehicle (Types of non-aqueous solutions)
Oleaginous
Solution that uses ether as a vehicle (Types of non-aqueous solutions)
Ethereal
A clear, saturated aqueous solution of volatile oil or other aromatic or volatile substance
Aromatic water
2 methods of preparing aromatic waters (DC)
Distillation, Cohobation
Slowest, most expensive method but the most satisfactory method of preparation (Methods of preparing aromatic waters)
Distillation
Example of preparation made using distillation
Strong rose water
Distillate is repeatedly used with fresh portions of flowers/plant materials to minimize the loss of water soluble components (Methods of preparing aromatic waters)
Cohobation
Example of preparation made using cohobation
Orange/rose flowers
2 methods of preparing solutions (DA)
Direct solution method, Alternate solution method
This method saves time and equipment; 2g or 2 mL of liquid is combined with 1000 mL of purified water and is shaken several times for a period of 15 minutes (Methods of preparing solutions)
Direct solution method
In this method, a dispersing agent is added which increases the surface of the volatile substance, ensuring more rapid saturation of water and forms an efficient filter bed thus producing a clear solution (Methods of preparing solutions)
Alternate solution method
