D4RR3N
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Fused quartz tes tubes
I would like some large fused quartz test tubes for heating applications but cant find any in the UK, actually I cant find any at all. Anyone know
where I can get them?
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1281371269
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Try:
http://technicalglass.thomasnet.com/
They ship to the UK. But it wont be cheap...
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Mr. Wizard
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Have you thought about the fused quartz tubes that surround halogen lamp bulbs? Have you thought about the fused silica tubes that surround the high
pressure mercury vapor tube inside a street light? This tube is inside the outer glass shell that has the phosphors on it.
The outer tubes of some UV sterilizing lamps are also clear fused quartz. I think they also sell them at aquarium and swimming pool supply stores. Is
sterilizing spelled with a z in the UK?
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D4RR3N
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Yes sterilizing is spelled with a Z in the UK, I know we use S often where Americans use Z.
Heating tubes etc use quartz but they are too thin. I'm looking for something with a larger diameter and a closed end.
I guess I will just have to order it from the US, thanks for the link Mossydie
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1281371269
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Out of interest, what about quartz tubes make them worth the price?
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12AX7
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You can basically melt iron in them, then immediately quench in water, and still have a test tube.
Tim
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bfesser
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Don't forget their optical properties.
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1281371269
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Sounds good 
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einstein(not)
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How would one go about sealing the open end of a 3 inch quartz tube for a destructive distillation setup? I have plenty of 24/40 glassware but I'm
at a loss as to how to connect them. This tube has no flang and is straight cut. I have rubber stoppers that large but obviously they won't take
heat. Any ideas?
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1281371269
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If they wont connect together in an obvious way, buy a connector or improvise one out of any material that will take the heat and wont interfere with
the reaction.
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bfesser
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You can't just connect quartz straight to borosilicate. You need to use a glass composition gradient, if anything. Not really something most
amateurs are capable of. You'd be best off contacting a skilled glassblower. To avoid the gradient, a flat flange might be your best bet.
Example of 'graded' glass:
http://www.adamschittenden.com/image_detail.php?id=138
[Edited on 6/26/09 by bfesser]
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