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tutorial:tutorial_on_nitric_acid_epoxy_decapsulation [2013/10/20 10:59]
127.0.0.1 external edit
tutorial:tutorial_on_nitric_acid_epoxy_decapsulation [2014/02/03 21:35] (current)
azonenberg
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   * Watch glass (optional)   * Watch glass (optional)
   * Thermometer (optional)   * Thermometer (optional)
 +  * Fume hood or local exhaust
  
 Pour out 25 mL of 70% nitric acid into the beaker. This volume is enough to dissolve most packages and provides enough liquid to buffer the temperature. If a watch glass is available, put it on top of the beaker. This will create a reflux condenser that will reduce fumes and reuse evaporated acid. Note the pour spout of the beaker should keep the assembly from building up pressure. Pour out 25 mL of 70% nitric acid into the beaker. This volume is enough to dissolve most packages and provides enough liquid to buffer the temperature. If a watch glass is available, put it on top of the beaker. This will create a reflux condenser that will reduce fumes and reuse evaporated acid. Note the pour spout of the beaker should keep the assembly from building up pressure.
-{{gallery>​image:HNO3_decapsulation__cooking.jpg}}+ 
 +Working in a fume hood is very strongly recommended,​ however if small enough amounts of acid are used it may be possible to work safely in a well-ventilated open space. 
 + 
 +{{:tutorial:​dscf4627.jpg?300|}}
  
 Heat solution to 75-80C. The key point is that the acid should not boil, but the epoxy should be rapidly bubbling. Something like this: Heat solution to 75-80C. The key point is that the acid should not boil, but the epoxy should be rapidly bubbling. Something like this:
 
tutorial/tutorial_on_nitric_acid_epoxy_decapsulation.txt · Last modified: 2014/02/03 21:35 by azonenberg
 
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