Driving axle for RDE

with mercury contact

The most important advantages at a glance

• Practically resistance-free current transfer

• High reproducibility of measurements

• Low-noise measurement of very low currents

• Can be combined with all existing electrode tips with

• Suitable for static and hydrodynamic measurements M3

thread

• Long life due to wear-free contact

• Fits all Metrohm VA stands

• Corrosion-resistant titanium axle Technical specifications Shaft material

PTFE, black

Axle material

Titanium

Electrical contact

Encapsulated mercury contact Length

85 mm

Thread

M3





The essentials in a nutshell To meet the most demanding requirements for electro-ments carried out under rotation (hydrodynamically). The chemical measurements on rotating disk electrodes, we mercury in the contact is, of course, safely encapsulated.

have combined high-quality materials. The durable and corrosion-resistant titanium axle in a PTFE holder guaran-The drive for rotating disk electrodes with mercury contees high resistance to chemicals and thereby a long life. tact can be used without any problem instead of the The resistance-free, wear-free mercury contact used ena-existing drive with friction contact. All existing RDE tips bles even very low currents to be measured precisely and can also continue to be used without any restrictions.

with little noise. This is especially important for measure-Applications

Determination of organic additives with CVS (Cyclic Vol-Cyclovoltammetric experiments in research and develop-tam metric Stripping), for example in acidic copper baths, ment, especially under rotation (hydrodynamic measure-tin baths or tin-lead baths.

ments).

Determination of an organic additive in an acidic copper bath Cyclic voltammogram in 0.5 mol/L sulfuric acid by means of CVS (Cyclic Voltammetric Stripping) Ordering information

6.1204.220

Driving axle for rotating disk electrode (RDE) with mercury contact Appropriate electrode tips Order number

Description

Shaft material

Diameter of



active

area

6.1204.110

Glassy carbon electrode tip PEEK

2 mm

6.1204.120

Platinum electrode tip, unpolished PEEK

2 mm

6.1204.130

Silver electrode tip

PEEK

2 mm

6.1204.140

Gold electrode tip for Hg determination PEEK

2 mm

6.1204.150

Lateral gold electrode tip for As determination PEEK

3 mm

6.1204.160

Platinum electrode tip for CVS, polished PEEK

2 mm

6.1204.170

Platinum electrode tip for CVS, polished PEEK

3 mm

6.1204.180

Ultra Trace electrode tip PEEK

2 mm

6.1204.190

Platinum electrode tip for CVS, polished Glass

1 mm

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SW

EN – 2009-0320

Layout: Ecknauer+Schoch A 8.000.50