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Zinc - Electrolytic polishing

Material Name: Zinc
Recipe No.: 671
Primary Chemical Element in Material: Zn
Sample Type: Bulk
Uses: Polishing
Etchant Name: None
Type (Macro/Micro): Micro
Etching Method: Electrolytic polishing
Etchant (Electrolyte) Composition: 100 ml distilled water, 20 g chromium (VI) oxide.
Procedure (Condition): 40-50 s, 60 V dc, Pt or Zn cathode.
Note: Toxic.
Reference: Fred Hargreaves (Ret.), Personal Etchants Database 1960-1990, Analytical Services Bookham Technology, Caswell, Towcester, Northamptonshire NN8EQ, UK.