This cell is a sister version ofBEC 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 hot electrolytes. A full description of the difference between PEEK and PTFE cells can be found in ourblog 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 awire clip) and c) membrane (using awire clip). The working,counterandreference electrodes are mounted in a top casing either in 2-, or 3-electrode setup. When the reference electrode has a glass body, aliquid junction adapteris needed. 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: Thereference electrode (or liquid junction adapter insertion tube) tip should be placed at the level of the working electrode center. This will ensure a low potential drop throughout the electrolyte solution for low-current experiments. Various auxiliary electrodes are suitable for this cell includingmetal wireand metal foil electrodes as well asgraphite rod. The bubbling of gas through the solution must be stopped prior to experiment.
A typical cell setup configuration for strong acidic electrolytes includes:
Specification maximum electrolyte volume: 35 mL electrode plug diameter: 6 mm
Intrastat data HS Code: 90309000 Country of Origin: Sweden NET weight: 200g
Setup includes: 1 x PTFE Basic electrochemical cell - PTFE BEC 50 mL 1 x PTFE lid 1 x PTFE chamber 1 x PTFE plug 1 x PTFE 50HX15 0.6/250 wire counter electrode, Platinum 1 x Reference electrode 1 x 10 pcs of Stainless Steel 316L wire clip with PTFE septum plug
