K-3925 DEHA

K-3925 DEHA Titrets Kit was designed to obtain DEHA levels ranging from 25-250 ppm

DEHA Information


The K-3925 DEHA Kit was designed to accurately measure the levels of DEHA in water from 25-250 ppm. K-3925 uses the Ceric Sulfate Titrant with Ferroin Indicator MethodCHEMetrics developed a titrimetric method that employs a ceric sulfate titrant and ferroin end point indicator. DEHA reduces ferric iron to the ferrous state, and the resulting ferrous iron is titrated with the ceric sulfate titrant. Test results are expressed in ppm (mg/L) DEHA.

Dissolved oxygen in boiler system water causes corrosion and pitting of metal surfaces, which can lead to boiler inefficiency, equipment failure, and system downtime. DEHA (N,N- Diethylhydroxylamine) is added to boiler system water as an oxygen scavenger to keep the dissolved oxygen levels as low as possible

What's included:

  • 30 Ampoules with valve assemblies
  • Activator Solution
  • Titrettor
  • 25 mL Sample Cup
  • Instructions



How to use:

  1. Add 25 mL of sample into the empty sample cup. Fill the sample cup to 25ml  

  2. Add 5 Drops of Activator solution. Stir to mix. 
  3. Wait 2 minutes. The sample will turn orange.
  4. Snap the tip of the ampoule at the black snap ring.

  5. Lift the control bar and  insert the Titret assembly into the Titrettor.

  6. Hold the Titrettor with the sample pipe in the sample. Press the control bar firmly, but briefly, to pull in a small amount of sample. Repeat, mixing the assembly between each sample draw. 

  7. Tip the vacu-vial back and forth to mix
  8. Watch for a color change to green. Wait 30 seconds.
  9. Press the control bar again and mix the ampoule. Watch for a color change from Green through Blue to Brownish-Orange.
  10. Repeat until the change to Brownish-Orange is permanent to remove the ampoule and obtain results.

  11. Multiply scale unit by 25 for results in ppm


K-3925 Instructions

K-3925 Tech Sheet

DEHA Information


More Information
Manufacturer CHEMetrics
Call For Price No
4-20 mA Output No
Voltage Output None
Power Requirements 4 AAA Batteries
Datalogging No
Warranty 1 Year
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