Sunday, December 15, 2013

Platinum Coated Titanium Anodes

Special chemical & physical properties like high corrosion resistance, thermal conductivity and catalytic nature, platinum is widely used as electrodes in metal finishing industries. Being a very expensive metal, instead of using solid form, platinum is deposited on the surface of titanium or niobium or tantalum, occasionally on molybdenum by micron level layer. Electrodes [Anodes or Cathodes] are available with hanging hook, frame or band; in the form of sheet, mesh, pipe, wire, rod and custom built. Platinised titanium anode is used in electrolytes having no fluoride. Platinised niobium anodes are used in electrolytes having fluoride, where we need better conduction (its conductivity is three times of titanium) & also it is suitable for Sulphuric acid chromium plating bath operated at current density greater than 75A / dm².
Common Laboratory Beaker anodes are used for Laboratory Plating tests, small batch plating, electrochemical production of organic, inorganic and many other compounds. The common beakers are available in the sizes of 0.5, 1.0, 2.0, 3.0 & 5.0 liters by volume. Standard Platinized Titanium Anodes [PTA] and Platinized Niobium Anodes [PNA] are available for said glass beakers. Anodes are available in the form of expanded mesh with hook, strips with hook and tube for some special applications. Platinised anodes are available with the standard platinum plating layer thickness of 2.5 micron. Plating thick can be increased up to 20 micron depending to the customer’s requirement. PTA anodes are used for the production of chlorates and perchlorate and in plating bath as insoluble anodes. 
Platinised titanium, niobium and tantalum anodes are having the advantages of Low weight because of low surace area due to the high current density - good current resistance; Long life operation - maintenance free; Economical - due to low platinum requirements; High dimensional stability and low resistance; highly suitable as auxiliary anodes of complex geometrical shapes.
Few of its applications are…
  • Metal finishing
  • Beaker anodes
  • Electroforming
  • Cathodic protection
  • Electrochemical sensing
  • Electro winning
  • Metal refining
  • Electrolytic regeneration of chromic acid
  • Electroplating for precious and base metals
  • Electrolytic production of sodium hypochlorite
  • Electro synthesis of Inorganic and organic chemicals
  • Especially production of perchlorates

Visit our site www.titanium.com.sg to know more about platinized titanium, MMO Anodes and titanium materials.

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