Australia's Science Forum

Teacher accidently grabbed the sodium carbonate instead of Copper carbonate .
Now have half a dozen side arm test tubes with glass like crap in them which won't budge .
Any suggestions ?

I suggest changing the locks on the chemical storeroom :p

I did that here Milo! I am the only person with the key!

Scienceassist recommend only the lab assistant, head teacher and possibly the chemistry teacher have access to the chemical store. This is a WHS issue. Limiting access makes perfect sense. As far as the test tubes go, I'd just throw them away. Your time you've already spent on them is worth more than they are.