Murakami's Etchant
Murakami's Reagent
Specialty
Composition
10g K₃Fe(CN)₆, 10g KOH, 100ml H₂O
10% each
Method
Immersion
Time
30s
Alternative Names
Tags
Reveals
Carbides, phases in hard metals
Typical Results
Excellent for tungsten carbides and hard metals. Reveals carbide distribution.
Color Effects
Carbides colored, matrix light
Compatible Materials
Incompatible Materials
Application Method
Method:immersion
Typical Time:30 seconds
Preparation Notes
Dissolve 10g K₃Fe(CN)₆ and 10g KOH in 100ml water. Prepare fresh.
Application Notes
Immerse sample for 30-60 seconds. May require heating to 50-60°C for some materials.
Troubleshooting
Can be used hot for better results on hard materials.
Storage Notes
Store in dark bottle. Prepare fresh when needed.
Alternative Etchants
- Vilella's Reagent
Similar Etchants
- Vilella's Reagent