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Rheometry

Methods IAAC, Krossing

Rheometry Model: Brookfield (RVDV–III UCP) - Programmable Rotation Viscosimeter
Unit and Room: Inorg. Chemistry, cellar, R.-144
Responsible: Petra Klose
Viscosity measurements
 Further information:


Short Description:

Programmable Rotation Viscosimeter having a temperature-measurement unit connected directly with the sample-chamber. Determination of the viscosity (necessary amount of a sample: 0.6 ml) by measuring of the force which is to perform to rotate the spindle at given speed.

 Picture of the Equipment

Rheometry
 
Available Experiments/Techniques:

Temperature–dependent viscosity measurements in an atmosphere of dry air.
Mesuring of the viscosity in dependence on the speed/torque (realization of several experiments via programming is possible).
Special Equipment:

Viscosity measurements in an atmosphere of dry air in a specifically home–built glove box (relative moisture content in air bellow 0.1%)
Temperature–dependent measurements - connection with a cryostat for the tempering of the samples (accuracy about ± 0.1°C)
Determination of the temperature in the samples using a temperature-measurement unit which is connected with the sample-chamber.
Measurements on the equipment are currently done by: Trained scientific service personal
 
Recent Publications, where this instrument was
important (citation):		 Krossing et al., 2010, to be submitted to Chem. Eur. J.
 
Typical problems that may be solved with this instrument: Viscosity measurements of the samples which are oxygen and/or water sensitive.

 

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