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Synthesis

Working With Thermocouples

April 12, 2010 | A version of this story appeared in Volume 88, Issue 15

I would like to comment on using metallic thermocouples in organic synthesis (C&EN, Jan. 18, page 2). Enclosing a thermocouple in a glass tube filled with inert fluid (for example, silicone oil) can prevent many problems such as spilling mercury, static electricity, and interaction of the probe with reaction components. I described such a device in a short application note in the March 2001 issue of the Journal of Chemical Education (page 342).

Sasha Nezlin
Ness Ziona, Israel

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