Determination of Boric Acid in Nickel bath
Boric acid (H3BO3) is a crucial component in nickel plating baths as it can directly influence the quality of the nickel
coating obtained. It is critical for its buffering ability to regulate pH, prevent the formation of undesirable compounds
such as nickel hydroxide, improve the luster of the coating, reduce internal stresses, and promote uniform
deposition. Typically, the concentration of boric acid that enables the effective performance of its functions is
between 30 and 45 g/L. Quantitative determination of this parameter enables the electrodeposition process to be
carried out efficiently and with reliable results.
Method
Test Type: End Point.
Time testing: 2 minutes
Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR GalvanLab®.
Sample treatment
The analysis is carried out on the nickel bath. The sample must be previously treated with an aliquot of activation solution in a cuvette.
Test Principle
The nickel bath is treated with an activating solution. The sample is reacted with a chromogen, and from the spectrophotometric reading the boric acid present can be quantified.
Calibration curve
The calibration curve was obtained by correlating the CDR method with the reference method.
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
|---|---|---|---|
| Boric acid nickel bath | 20 - 80 g/L | 0.100 g/L | 1 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)
