Barker's Reagent (Electrolytic)

electrolytic

Composition

Fluoboric Acid (HBF₄)

Concentrated

Method

electrolytic

Time

60s

Basic Information

Category:Electrolytic

Composition:Fluoboric Acid (HBF₄)

Concentration:Concentrated

Reveals:Grain boundaries, interference colors

Typical Results:Electrolytic etchant for aluminum. Produces excellent grain boundary contrast and interference colors. Very effective for aluminum microstructures.

Color Effects:Grain boundaries dark, interference colors visible