The electrical conductivity is not only dependent on the type and concentration of the electrolytes, but also on other parameters of state. For example, increasing temperature is mostly accompanied by an increase in conductivity, which can be attributed to the exponentially decreasing viscosity of the solution. A limiting value is reached, however, after which the conductivity decreases when the temperature increases further. The value of this limit is approx. 90°C for aqueous solutions. The dependence of temperature is to be experimentally examined in this experiment.
| Materiallist (Excerpt) |
Product |
Amount |
|
Magnetic stirrer MR Hei-Standard
|
35750-93
|
1
|
|
Set of Precision Balance Sartorius TE 212 and measure software balances, 230V
|
48833-88
|
1
|
|
Software Cobra4 - multi-user licence
|
14550-61
|
1
|
|
Cobra4 Wireless-Link
|
12601-00
|
1
|
|
Cobra4 Sensor-Unit Conductivity+, Conductivity/ Temperature (Pt1000)
|
12632-00
|
1
|
|
Conductivity temperature probe Pt1000
|
13701-01
|
1
|
|
Condenser, Dimroth type GL25/12
|
35815-15
|
1
|
|
Cobra4 Wireless Manager
|
12600-00
|
1
|
|
Round flask,100ml,3-n.,GL25/2GL18
|
35677-15
|
1
|
|
Holder for Cobra4 with support rod
|
12680-00
|
1
|
|
Closure caps,10, GL25
|
41221-03
|
1
|
|
Water, distilled 5 l
|
31246-81
|
1
|
|
Potassium chloride 250 g
|
30098-25
|
1
|
|
Supp.rod stainl.st.,50cm,M10-thr.
|
02022-20
|
1
|
|
Universal clamp
|
37715-00
|
2
|
|
Crystallizing dish, boro3.3, 1000ml
|
46245-00
|
1
|
|
Right angle clamp
|
37697-00
|
3
|
|
Glass beaker DURAN®, tall, 250 ml
|
36004-00
|
1
|
|
Powder spatula, steel, l=180mm
|
47561-00
|
1
|
|
Funnel, glass, top dia. 55 mm
|
34457-00
|
1
|
|
Magnetic stirring bar 30 mm, cylindrical
|
46299-02
|
1
|
|
Wash bottle, plastic, 500 ml
|
33931-00
|
1
|
|
Magn.stirring bar 15mm, cyl.
|
46299-01
|
1
|
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