Rhodium-EC, type I
Rhodium-EC is used to correct the rhodium content in the standard electrolyte for rhodium plating.
The chemical composition of correction rhodium plating electrolyte Rhodium-EC Type I shall meet the requirements specified in Table 1.
Table 1.
| Parameter | Value forelectrolyte Rhodium-EC Type I, % |
| 1 Mass fraction of rhodium | 4,9-5,1 |
| 2 Mass fraction of each impurity in relation to rhodium, not more than: | |
| copper | 0,005 |
| nickel, lead, zinc | 0,006 |
| iron, arsenic | 0,025 |
| magnesium, calcium | 0,05 |
| silicon | 0,2 |
| 3 Mass fraction of chloride ion in relation to rhodium, not more than | 0,2 |
Correction rhodium plating electrolyte Rhodium-EC is packaged in bottles, jars, canisters made of polymeric material.
The storage life of rhodium plating electrolytes is 2 year.