PTFE BEC 50 mL - PTFE Basic Electrochemical Cell

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  • €350.00

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This cell is a sister version of BEC 50 mL. In this cell concept, all elements that stay in contact with an electrolyte or its fumes are made of PTFE and other fluorinated materials (tubing, fittings, and O-Rings). This cell is used wherever PEEK fails, i.e. when using electrolytes containing:

  • Aqua regia - HNO3 + HCl
  • Benzenesulfonic acid - aqueous C6H5SO3H
  • Bromine (liquid) - pure Br2
  • Carbolic Acid (Phenol) - C6H5OH
  • Carbon Disulfide - CS2
  • Chlorine (aqueous and anhydrous liquid) - Cl2
  • Chlorosulfonic acid - pure ClSO3H
  • Chromic Acid - aqueous H2CrO4 >50%
  • Ethylene bromide (anhydrous) - pure CH2CHBr
  • Fuming sulphuric acid (Oleum) - pure H2SO
  • Hydrobromic acid - aqueous HBr
  • Hydrofluoric acid - concentrated aqueous HF
  • Nitric acid - aqueous HNO3 >50%
  • Sulphuric acid - concentrated (96%) H2SO4
  • Sulphurous acid - aqueous H2SO3

The chamber is also alkali-resistant, so it can be used instead of glass in experiments including high pH electrolytes. A full description of the difference between PEEK and PTFE cells can be found in our blog post
This is a stationary solution basic electrochemical (electrolytic) cell for measurements of electrodes in a form of: a) rod/disc (6 mm dia.), b) thin film deposited on flat substrate (using a clip electrode) and c) membrane (using a clip electrode). The working, counter and reference electrodes are mounted in a top casing either in 2-, or 3-electrode setup. The cell elements are constructed with materials that are inert to the sample (PTFE). It well fits aqueous (FKM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is gas-tight and can be used when the removal and exclusion of contaminants such as oxygen and water is required by bubbling of an inert gas through the electrolyte. The cell chamber is available in several material variants here.

Application note
The reference electrode tip should be placed at the level of working electrode center. This will ensure a low potential drop throughout the electrolyte solution for low-current experiment. Various auxiliary electrodes are suitable for this cell including metal wire and metal foil electrodes as well as graphite rod. The bubbling of gas through the solution must be stopped prior to experiment.

Specification
maximum electrolyte volume: 50 mL
electrode plug diameter: 6 mm

Product includes
1 x PTFE lid
1 x PTFE chamber
1 x PTFE plug 

Related products
Reference Electrodes
Metal Wire Auxiliary Electrodes
Non-metal Electrodes


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