# Big Barometer - Demonstration

This demonstration shows the construction of of an eleven foot high barometer made with a concentrated solution of potassium tetraiodomercurate(II).

More precisely, this barometer is made using an aqueous solution of potassium tetraiodomercurate(II)].

Credits:
• Design and Production
• Frederick H. Juergens University of Wisconsin - Madison, Madison, WI 53706
• Demonstration
• Frederick H. Juergens University of Wisconsin - Madison, Madison, WI 53706