Technical data

Determination of chloride by Fajans

Article no: P7511400

Principle

In this experiment a sodium chloride solution of unknown concentration but known volume is filled into a vessel and an indicator (here: fluorescein) is added. A silver nitrate solution with a known concentration (standard solution, 0.1 M) is filled into the burette and added dropwise to the solution being analysed until the indicator changes colour. The volume, which can be read off the burette, and the known concentration of the acid are then used to calculate the concentration of the base.

Learning objectives

Test for chloride
Fajan-test

Benefits

Experiment literature available for pupils and teachers: Minimum preparation time
Simple teaching and efficient learning by using the available interactive experiment literature

Scope of delivery

Burette with straight stopcock, 25 ml Graduation 0.1 ml	47153-01	1
Pipette with rubber bulb	64701-00	1
Erlenmeyer flasks, Boro, wide neck, various sizes	46151-00	1
Funnels, plastic, various sizes	36891-00	1
Graduated pipette, 5 ml : 0,1	36599-00	1
Protecting glasses, clear glass	39316-00	1
Pipettor,bulb,3 valves,100ml max.	47127-02	1
Burette clamp, roller mount.,1pl.	37720-01	1
Support base, variable	02001-00	1
Stand rods, stainless steel, various sizes	02059-00	1
Wash bottle, 250 ml, plastic	33930-00	1
Laboratory pen, waterproof, black	38711-00	1
Sodium chloride 250 g	30155-25	1
Water, distilled 5 l	31246-81	1
Silver nitrate solution 5% 100 ml	30223-10	1
Ethyl alcohol, absolute 250 ml	30008-25	1
Fluorescein 25 g	31314-04	1
Beaker, 50 ml, plastic (PP)	36080-00	2