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via Google Checkout We also accept Paypal and Corporate & School Purchase Orders |
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Laboratory Electrodes
and related items
These electrodes are ideal for electricity and electrochemistry experiments.
Aluminum Electrode,
Flat (strip), approx. 24 mm wide, 124 mm (4.9 inches) long, and just
under 0.7 mm thick.#C541.............$1.39 each
Carbon Electrode,
Flat. Last ones we measured were approx. 18 mm wide x 126 mm (5
inches) long x 5 to 6 mm thick. Carbon electrodes are resistant to
chemical attack and can substitute for platinum in many situations,
though carbon may erode faster in severe conditions. Important: These are not
always cut to a consistent size. Electrodes may vary in size
and shape, though they are roughly rectangular.#C543.............$3.99 each
Carbon Electrode,
Round (Pencil type). Current lot has diameter approx. 5.8 mm
(just under 1/4"). Length approx. 126 mm (5 inches) long. #C551 ...... $2.29 each
Copper Electrode,
Flat (strip), approx.
19 mm (3/4 inch) wide x 126 mm (5 inces) long x 1 mm thick.#C544 ........$2.19 each
Iron Electrode,
Flat (strip), approx. 19 mm (3/4 inch) wide x 126 mm (5 inches) long x
1.2 mm thick. These arrive with a coating of grease to prevent rust;
they must be de-greased prior to use. After using, they should be
cleaned and re-coated with grease for storage, or else they will rust.#C545...........$1.49 each
Nickel Electrode,
Flat (strip), approx.
19 mm (3/4 inch) wide x 126 mm (5 inches) long x 0.5 mm thick. Nickel
electrodes produce soluble Ni compounds (toxic)
under anodic conditions; be sure you're prepared to handle this.#C548..............$5.49 each
Porous Cup- permeable clay partition for electrolysis. Current can flow across cell, but the cup allows the aqueous products of each electrode to remain separate. This is discussed further in our free article about electrolysis reactions.
#C1826.............$2.49 each
O.D. approx. 38 mm, I.D. approx. 33 mm, Height approx. 75 mm
Stainless Steel
Electrode, Wire (Round Cross-Section). Bent at one end like a
candy cane. Last ones we measured were about 137 mm (5 3/8
inches) overall height. Wire diameter 2.4 mm; dia. of
insulated portion 3.1 mm.Please read the note (right-hand sidebar) regarding electrode measurements. If you want these to fit in your electrolysis apparatus, you will almost certainly need to do custom fabrication. We're sorry, but we cannot help you with this.
Sold in pairs.
#C5410.........$9.95
Tin Electrode,
Flat (strip), approx. 19 mm (3/4 inch) wide x 126 mm (5 inces) long x
1 mm thick.#C549..............$4.49 each
Zinc Electrode,
Flat (strip), approx. 19 mm (3/4 inch) wide; 126 mm (5 inches) long;
1.1 mm thick. Zinc electrodes acquire a film of oxidation readily
in the air. Should be cleaned prior to use. Acidic
solutions will attack zinc vigorously, eating away at the electrode.#C547.............$2.19 each
CAUTION: Wear gloves when handling electrodes; stamped metal may have sharp corners and / or edges. If you want to make the edges and corners smoother, use medium to fine sandpaper.
Also be sure to wear safety goggles during all experiments.
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Catalog
Electrolysis Apparatus
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Important note regarding
MEASUREMENTS:
Dimensions are subject to change.
We cannot provide standard deviation (etc.), because sizes may vary from lot to lot.
The electrodes we sell are for classroom / educational purposes.
They are not designed for precise engineering projects.
Electrochemical series (Order of reactivity).
Higher in list = higher reactivity and more negative reduction potential.
Al - Aluminum
Zn - Zinc
Fe - Iron
Ni - Nickel
Sn - Tin
Cu - Copper
Notice that carbon doesn't really fit on this list when we're talking about aqueous electrochemistry (in other words, the typical electrolysis cell).
Carbon, unlike the metals, does not actually go into solution as ions, nor can it be "plated out" from solution. Instead it erodes away as fine particles of solid carbon that settle to the bottom.