K-1805 Carbohydrazide

K-1805 Carbohydrazide Kit is used to determine Carbohydrazide levels from 0-0.50 ppm.

Carbohydrazide Information


The K-1805 Carbohydrazide Kit was designed to accurately measure the levels of Carbohydrazide in water from 0-0.50 ppm. K-1805 uses the PDTS MethodThe test kits employ the PDTS chemistry. Carbohydrazide reduces ferric iron to the ferrous state, and the ferrous iron reacts with PDTS (3-(2-pyridyl)-5,6-bis(4-phenylsulfonic acid)-1,2,4-triazine disodium salt) to form a peach-pink colored complex in direct proportion to the carbohydrazide concentration. Test results are expressed as ppm (mg/L) carbohydrazide

Carbohydrazide is added to boiler system water as an oxygen scavenger to control corrosion. It is a safer alternative to hydrazine, which is toxic. Carbohydrazide reacts with oxygen at low temperatures and pressures. The products of the reaction are volatile and do not contribute dissolved solids to the boiler water. Like hydrazine, carbohydrazide will also passivate metal surfaces.

R-1805 Refill Package includes 30 tests and can be purchased separately.

What's included:

  • 30 Ampoules
  • Comparator
  • Activator Solution
  • 25 mL Sample Cup
  • Instruction Manual



How to use:

  1. Fill the sample cup to the 25 mL mark with sample water.Fill the sample cup to 25ml
  2. Add 2 drops of Activator Solution. Stir gently. Wait 5 minutes.
  3. Snap the ampoule tip.
  4. Mix ampoule by inverting several timesTip the vacu-vial back and forth to mix
  5. Dry the ampoule, and wait 1 minute for color development.
    Dry vacu-vial and then insert into the I-2019
  6. Obtain results using the appropriate comparator and finding the best color match. 

Downloads and Links:

K-1805 Instructions

Carbohydrazide Information


WARNING! This product can expose you to chemicals including chloroform, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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