Product details

Redox Volumetric Titration: Cerimetry with Cobra4

Redox Volumetric Titration: Cerimetry with Cobra4

Item no.: P3121060

Difficulty Expenditure of Time print
  • Description
  • Scope of Supply
  • Accessories
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Principle

Potassium permanganate solutions which are used as oxidizing measuring solutions in redox titrations can in most cases be replaced by Ce(IV) solutions. These offer the advantages that they do not change on storage and that the course of the redox titration can be very conveniently followed by measuring the electrochemical potential. The equivalent point can then be found by determination of the inflection point of the potential curve which results from plotting the measured values.

Tasks

Titrate Iron(II) sulphate solution with Ce(IV) sulphate solution.

What you can learn about

  • Redox titration
  • Iron(II) sulphate
  • Ce(IV) sulphate
  • Titration
  • Cerimetry

Benefits

  • Drop counter optimizes the experimental procedure
  • Simplified implementation: all pre-settings already prepared
  • Extensive automation of the experiment allows concentration on the learning objectives

Necessary accessories

  • Precision balance 6200g/0.01g

Software provided. Computer not included.


 

Device Name Item no. Qty
Beaker, 600 ml, high-form 46029-00 1,00
curricuLAB measureLAB 14580-61 1,00
Retort stand, h = 750 mm 37694-00 1,00
Sulphuric acid, 95-98% 500 ml 30219-50 1,00
USB charger for Cobra4 Mobile-Link 2 and Wireless/USB-Link 07932-99 2,00
Right angle boss-head clamp 37697-00 3,00
Volumetric pipette, 10 ml 36578-00 1,00
Wash bottle, plastic, 500 ml 33931-00 1,00
Holder for sensors with support rod 12680-00 2,00
Adapter, BNC-plug/socket 4 mm 07542-26 1,00
Platinum electrode in protection tube, d = 8 mm 45206-00 1,00
Cerium-/IV/-sulphate 2 31194-04 1,00
Cobra4 Wireless/USB-Link incl. USB cable 12601-10 2,00
Magnetic stirring bar 15 mm, cylindrical 46299-01 2,00
Burette clamp, roller mount., 2 pl. 37720-00 1,00
Pasteur pipettes, 250 pcs 36590-00 1,00
Funnel, glass, top dia. 50 mm 34457-00 1,00
Reference electrode, AgCl 18475-00 1,00
Beaker, 50 ml, high-form 46025-00 3,00
Funnel, d.40 mm, f.burettes 36888-00 1,00
Volumetric flask 100 ml, IGJ12/21 36548-00 1,00
Water, distilled 5 l 31246-81 1,00
Cobra4 Sensor-Unit Chemistry 12630-00 1,00
Gloves, Neoprene, medium 46347-00 1,00
Rubber caps, 10 pcs 39275-03 1,00
Pipettor 36592-00 1,00
Magnetic stirrer without heating, 3 ltr., 230 V 35761-99 1,00
Iron-II sulphate 500 30072-50 1,00
Beaker, 250 ml, high-form 46027-00 1,00
Volumetric flask 500 ml, IGJ19/26 36551-00 2,00
Spoon, special steel 33398-00 1,00
Cobra4 Sensor-Unit Drop Counter 12636-00 1,00
Connecting cord, 32 A, 500 mm, red 07361-01 1,00
Protecting glasses, clear glass 39316-00 1,00
Graduated pipette 25 ml 36602-00 1,00
Beaker, tall form, 150 ml 36003-00 1,00
Graduated cylinder 250 ml 36630-00 1,00

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