2. Chemistry 101 Set-up for DISTILLATIONS Collecting the fermentation mixture

3. From the side- bench, obtain the following five items of standard taper glassware Apply a thin coating of “stopcock grease” to the ground glass joints.

4. Start setting up with a suitable ring stand. (Tighten the rod!)

5. Place the burner on the ring stand.

6. Then, add the iron ring, leaving 2 to 3 inches for the flame.

7. The wire gauze rests on top of the iron ring.

8. Carefully, without disturbing the sediment, decant the clear supernatant liquid into the RB flask.

9. The RB flask is clamped directly onto the wire gauze. Leave NO air space.

10. The 3-way adapter (still head) is inserted into the RB flask The 3-way adapter (still head) is inserted into the RB flask.

11. A thermometer is fitted through the rubber holder AND the glass adapter.

12. The thermometer assembly is inserted into the still head. The thermometer bulb should be just below the side-arm.

13. The attached condenser is secured to another ring stand. Water enters the lower end.

14. A graduated cylinder in an ice-water slurry serves as the receiver. It would be wise to weigh the cylinder FIRST!

15. Have your instructor check your set- up before you begin distilling.

16. With a small flame, distill the mixture, collecting about 10 mLs of distillate.

17. Determining the proof graphically.

18. Light a few drops on a watch glass. LOOK CLOSELY!! The pale blue flame is difficult to see The pale blue flame is difficult to see.

19. Finally, CLEAN UP! Clean and return the S/T glassware to their respective boxes. Clean the Erlenmeyer flask, testtube, and connecting assembly and return them to their respective places.