Coating oxide (chemical blacking) of copper
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- Typical parameters of the process
| Process | Temperature [°C] | Chemicals | Concentration | Details | Literature |
| Chemical blacking of copper | 93-100 | Sodiumhydroxide and sodium chlorite | Sodium hydroxide: 75 wt%, sodium chlorite: 25 wt% | BAT for the surface treatment of metals & plastics, 2006 |
