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Anodes

Platinised Titanium

Platinised titanium anodes combine the excellent electrochemical characteristics of platinum with the good corrosion qualities of titanium. They are characterised by the following features and provide advantages over soluble anodes and lead anodes:

Flexible, application-specific design

Production of complex shape anodes

Energy saving potential

Low weight (in particular expanded metal anodes)

Long service time even at high current density

Dimensional stability, long durability of base material

Replating possible

Homogeneous deposition, higher quality of end product

Platinised titanium anodes are very frequently used as expanded metal anodes due to their excellent pratice characteristics (high throwing power, good electrolyte exchange, compact construction, low weight etc.).

Mixed Metal Oxide Coated Titanium + Niobium

Anodes with mixed metal oxide (MMO) coating mostly consist of the base material titanium or niobium onto which precious metal oxides of the platinum metals group with other valve metals are applied. Usually iridium mixed oxide coatings are used for chloride-free electrolytes, whereas ruthenium or iridium/ruthenium mixed oxide coatings are used for the production of chlorine and hypochlorite.

Overview of the specifications – Mixed metal oxide coated titanium and niobium

Base material: Titanium or niobium

Shape of base material: Expanded metal, sheet, pipe, rod, wire

Size + construction: Customer specific

Precious metal load: 8 - 40 g / m2

Layer types: Ir mixed oxide / Ru mixed oxide / Ir-Ru-mixed oxide

Coating method: Thermal transformation of precious metals resp. valve metal compounds into the form of oxide

Specific current density: max. 100 A / dm2

Type of application: Anode / bipolar electrode (current reversal, reverse pulse plating)

pH-value: 0 - 11

Bath temperature: max. 60 °C

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