Thursday, Feb 21, 2008 - 4A

Handed out safety contract which students can use to help with safety precautions.

Handed out Distillation of Wood lab write-up sheet stating what is expected in the lab write-up and how it is to be organized.

Collected signed safety contracts. Students without signed safety contract could not participate in lab. They had to sit and wear goggles and observe from afar. I asked them to start their write-ups by writing material list, procedure, safety precautions, and diagram.

Students assembled equipment and started lab. I checked each set-up before letting students light up.

Half way through the class we had a fire alarm (not because of us). Removed rubber tubing from bucket, shut off lamps, evacuated room. Because we could not burn off the gas this made for an extra smelly room.

When we returned from the fire alarm, students restarted with new wood splints.

Shut down and clean-up started 15 minutes before the end of class. Students put name on collection test tube with masking tape, stoppered with solid rubber stopper, and stored test tubes in test tube rack.

Because of the fire alarm, we really did not collect enough liquid for the distillation. May have to repeat lab on Monday.