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I am not an expert of physics, instead I am more good at chemistry.

I just wanted to ask that how do I prevent shattering of glasses on sudden large temperature changes?

Sometimes, when I have to cool hot test tubes rapidly, the test tubes break down when I place them in water for cooling.

Is there any way to prevent it?

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  • $\begingroup$ You mean besides taking hot (fragile) things and putting them in cold water? $\endgroup$ – Kyle Kanos Oct 7 '13 at 20:05
  • $\begingroup$ yeah! But also glass should not break $\endgroup$ – ashu Oct 7 '13 at 20:06
  • $\begingroup$ Why should glass not break? $\endgroup$ – Kyle Kanos Oct 7 '13 at 20:08
  • $\begingroup$ read the question again pls.!! $\endgroup$ – ashu Oct 7 '13 at 20:10
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    $\begingroup$ In any event, thermal shock is likely going to show up each time you try it. The best you can do is to not use glass but some other material that can handle the temperature shift (ceramic might, but not 100% sure). $\endgroup$ – Kyle Kanos Oct 7 '13 at 20:19
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Try Pyrex, Vycor, fused silica - in that order.

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  • $\begingroup$ Also try thicker walled test tubes. Sometimes these problems are solved just by finding the right manufacturer. $\endgroup$ – Mark Rovetta Oct 8 '13 at 1:46
  • $\begingroup$ Surely thinner walled test tubes? It's the temperature difference across the walls that causes the failure. $\endgroup$ – Martin Beckett Oct 8 '13 at 3:33

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