RHODIUM J1
A long time standard of Umicore, Rhoduna® J1 is an electrolyte slated for the deposition of Brilliant-white, very light, bright coatings. Umicore J1 is suitable for plating jewelry bringing out decorative applications. Minor porosity, good covering speed, excellent throwing power, appropriate for a bright, thick crack-free layer up to 0.3μm. J1 is advantageous for rack and barrel plating.
Packaged in shrink-sealed plastic bottles for protection and security.
Advantages:
Suitable for Decorative Applications
Appearance of Brilliant-White, Very Light Coatings
Minor Porosity
Good Covering Speed
Layer thickness up to 0.3μm can be deposited
For rack and barrel plating
High Abrasion Resistance
Good Wear Resistance, Corrosion Resistance, and Tarnish Resistance
Operating Conditions:
| Temperature | 35 °C (20 -40 °C) |
| pH value | < 1 |
| Current density | 1,0 A/dm² (0.5 –2.0 A/dm²) |
| Voltage | 2.0 –4.0 V |
| Deposition speed | approx. 0.025 μm/min at 1 A/dm² |
| Deposition rate | approx. 3.2 mg/Amin at 1 A/dm² |
| Current efficiency | approx. 15 % at 1 A/dm² |
| Throwing power | approx. 70 % (Haring-Blum cell) |
| Covering speed | slow (approx. 200 s) |
| Anodes | platinized titanium or mixed metal oxide (type 177) |
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