EXPERIMENTAL METHODS - 2.EXPERIMENTAL METHODS 2.1 Capillary...

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2.EXPERIMENTAL METHODS 2.1 Capillary Flow Method (The Ostwald-Fenske Viscometer) For the first part of the experiment, we have used the equipments of Ostwald-Fenske viscometer, constant temperature bath, stopwatch, rubber bulb and the chemicals of distilled water, glycerol and chromic acid. In this part of the experiment, first thing that to be taken into consideration is the equipment must be cleaned with chromic acid and rinsed with distilled water and then with the sample which will be used; glycerol for this experiment.And the second thing is the calibration of the viscometer. After the calibration of the viscometer, the rubber bulb is attached to the it. It is very important that the viscometer is fragile and may be broken easily.So, while attaching and removing the rubber bulb, we must be very careful and viscometer must be held by the end of the capillary arm only.Then, the viscometer is placed into the water bath and it is set up in a water bath whose temperature can be controlled by a heater and a thermometer. Afterwards,
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EXPERIMENTAL METHODS - 2.EXPERIMENTAL METHODS 2.1 Capillary...

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