Determination of the refractive index with the refractometer

VC3.3.3.1
Determination of the refractive index with the refractometer
Determination of the refractive index with the refractometer

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Description

In experiment C3.3.3.1 the mass fraction w in % in a solution is determined by measuring the refractive index with the help of the refractometer. For this purpose, solutions with different mass fractions of a substance are prepared and a calibration curve is plotted. This allows a sample with an unknown mass fraction to be determined.

Components of equipment sets

1 667359  8  Laboratory refractometer LD
1 6677977 Electronic Balance 440-3N, 200 g : 0.01 g LD
2 602022  4  Beaker Boro 3.3, 100 ml, squat LD
2 665997  4  Graduated pipette 10 ml LD
1 666002  4  Pipetting aid LD
1 665953 Dropping pipette, 7 x 150 mm, 10 pcs. LD
1 665954 Rubber bulbs, 10 pcs LD
10 661251  4  Flip-flap glass, 20 ml LD
1 661243  4  Wash bottle PE 500 ml LD
1 6719720  4  Ethanol, denaturated, 1 l LD
GHS02GHS07 Danger H225 H319
1 6673551 * Peltier-Thermostat PT30 LD
2 30770  4  * Tubing 8 mm Ø, 1 m, plastic LD

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) C3.3.3.1 Determination of the refractive index with the refractometer
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