Determination of Chloride concentration in process water

Chlorides may be present are a key parameter to monitor in the process water used in the galvanic process. Monitoring helps ensure that the water meets the quality standards required for the galvanic process. The excessive presence of chlorides can accelerate the corrosion process of components in galvanic tanks.

Method

Test type: End Point.

Testing time: immediate reading.

Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR GalvanLab® and 3 tests for CDR GalvanLab® Junior.

Passo 1
Step 1/8
Place the test tubes containing reagent R1 in one of the incubation cells and let them warm for at least 5 minutes.
Passo 2
Step 2/8
Gently shake the cuvette 2-3 times.
Passo 3
Step 3/8
Select the cuvette to be read from the display. Place the cuvette in the cell marked with the blue light and press READ.
Passo 4
Step 4/8
Collect 10 µL of sample with a pipette. Use a new tip for each test to prevent contamination from previous samples.
Passo 5
Step 5/8
Carefully clean the outside of the pipette tip with blotting paper, avoiding contact between the extremity of the tip and the paper.
Passo 6
Step 6/8
Place the sample in the cuvette. Keeping the tip immersed in reagent, press and release the piston of the pipette several times.
Passo 7
Step 7/8
Gently shake the cuvette 2-3 times.
Passo 8
Step 8/8
Place the cuvette in the cell marked with the blue light and press READ to perform the photometric reading.
13%

Sample treatment

The sample can be used as is.

Principle of the test

The chloride ions react with the mercuric thiocyanate and release thiocyanate ions. The thiocyanate ions react with Fe (III) giving an orange complex whose intensity, measured at 520 nm, is directly proportional to the concentration of chlorides in the sample.

Calibration curve

Calibration curve was obtained by correlating the CDR method with the reference method.

Chlorides Analysis in Process Water: Calibration Curve of the CDR GalvanLab® instrument with the reference method.

Reagent test Kits

Code *400110: 100 test
Code *400115: 10 test
The reagents have a shelf-life of 12 months

Measuring range

AnalysesMeasuring rangeResolutionRepeatability
Chloride [5-20] g/L5 - 20 g/L0.001 g/L0.324 g/L

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)

CDR GalvanLab® Jr

  • Partial analysis panel, customisable configuration
  • Up to 3 determinations simultaneously
  • Wireless connection to external printer
  • USB connections
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