These are pictures I took a while ago and have only now had a chance to upload, perhaps later I can take, and upload some pictures of bead and marble making.
The first step in making a condenser is to make a test tube; this is done by heating the center of a tube and, with a slight amount of pulling to keep uniform wall thickness, allow the tube to close off and then pull it apart to make two test tubes.
The first step in making a condenser is to make a test tube; this is done by heating the center of a tube and, with a slight amount of pulling to keep uniform wall thickness, allow the tube to close off and then pull it apart to make two test tubes.
Each of these needs to be heated again and have gentle air pressure from within to round off their bottoms
Next, we put a smaller tube up inside and support it with what the instructor says is a poor substitute for asbestos.
After sealing the smaller tube to the bottom of our "test tube" we blow a hole out the end of it and join another small tube on, a second bubble is blown in the wall of what is now becoming the condenser to join a water inlet on. These steps are then repeated on the other end to complete the condenser. Pictured below is the fourth and final bubble blown in preparation for fusing on the water outlet.
The final product could be used in reflux or distillation reactions where water would flow through the horizontal tubes thus cooling, but not mixing with, whatever is in the center tube... however this particular one will never achieve this lofty goal. It has already been discarded in the scrap barrel since I would be lucky to get a B- for it and I'd already made one that was much better.
2 comments:
yay. thanks for sharing. what other cool stuff have you gotten to do?
wow! I'm very impressed... we use various water-cooled condensers all the time in OCHEM lab. You'll have to teach me some time!
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