Title: Bath composition for electropolishing of titanium and method for using same
Application Number: 00809453 Application Date: 2000.06.20
Publication Number: 1358240 Publication Date: 2002.07.10
Approval Pub. Date: 2005.12.07 Granted Pub. Date: 2005.12.07
International Classifi-cation: C25F3/26
Applicant(s) Name: Organisation Europeenne Pour La Recherche Address:
Inventor(s) Name: J. Guerin
Attorney & Agent: wang jie
Abstract:
    The invention concerns a bath composition for electropolishing of a non-alloyed titanium metal surface, characterised in that it comprises: sulphuric acid (95 to 98 % solution): 20 to 40 % in volume; hydrofluoric acid (40 to 48 % solution): 10 to 18 % in volume; acetic acid ( 90 to 100 % solution): 42 to 62 % in volume, capable of modifying the electrochemical balances at the solution-metal interface, the acetic acid enabling a better control of oxidation and dissolution of the titanium surface and to automatically limit the chemical dissolution of the metal surface.
Time: 9