quantitative electro-chemical analysis in laboratories, Platinum
Electrodes of various types are used. Generally, Electrodes
are made of platinum 10% Iridium alloy for added mechanical
strength which ensure long period of trouble free service.
Electrode cylinders are usually made of wire gauze having
wire diameter 0.15 mm * 360 mesh per cm2. This provides greater
surface than area equal weight of plain or perforated platinum
sheet and allows the electrolyte to circulate much more freely.
Wherever agitation of electrolyte is required in order to
save time of deposition, one of the rotating type of electrode
most electro-chemical analysis, wire gauze cathode is most
satisfactory while a small size of similar anode is used if
an anode deposit is required.
simple helix of wire with stem is an adequate anode where
there is no anodic deposit or when determining is not more
than 0.2 percent lead as lead peroxide.
desired, we can manufacture Platinum 10% Iridium electrodes
to customers'own specifications to meet their special needs.
of caution or care and maintenance of electrodes, more particularly
wire gauze electrodes which are quite delicate compared to
other Platinum ware.
shaking should be avoided.
electrolysis and weightments, the deposits are removed by
dissolving in single acids without any damage to the electrodes.
re-use the electrodes should be cleaned with distilled water
followed with drying around 100 C.
determining Zinc, tin, lead, cadmium or mercury content
by cathodic deposition, a prior electro deposit of copper
or silver is recommended to avoid alloying with platinum.
on original design by Fischer, the following electrodes are
used in stirred or unstirred electrolytes. The coil type (helical)
anode is used when no anodic deposition is required or when
determining less than 0.2 percent lead as lead peroxide.