Determination of Free Cyanides concentration in Bronze baths
The analysis of cyanides in electroplating baths is essential to ensure the quality of the deposition process, operator safety and environmental control. Cyanide baths, such as those used for alkaline copper plating, bronze plating and silver plating, allow for uniform deposition thanks to the formation of stable complexes with metal ions.
Monitoring cyanide concentration is crucial: inadequate levels can compromise adhesion and deposit quality, while excesses increase the risks of toxicity and treatment costs.
Method
Test type: End Point.
Time testing: 11 minutes
Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR GalvanLab®.
Sample treatment
The sample must be diluted. *Only for the curve [0.01-1] g/L: the sample can be used as is.
Test principle
The content of free cyanides is determined, after dilution, by reaction with a chromogen. The test has a total duration of 10 minutes at the end of which the signal related to the colored complex formed is detected.
Calibration curve
The calibration curve was obtained by correlating the CDR method with the reference method.
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
|---|---|---|---|
| Free Cyanide bronze bath [1-100] g/L | 1 - 100 g/L | 0.100 g/L | 0.5 g/L |
| Free Cyanide on bronze bath [0.01-1] g/L | 0.01 - 1 g/L | 0.001 g/L | 0.012 g/L |
Reagent test Kits
The chemical analysis instrument for electroplating baths
CDR GalvanLab®
- Complete analysis panel, supplied already configured
- Up to 16 determinations simultaneously
- Possibility of carrying out analyses of the same sample
- Integrated printer
- Full connections (LAN - USB - Bluetooth barcode/QR code reader)
