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Hanna Instruments Canada
Customer Support: (800) 842-6629

Magnesium Reagents (150 tests) - HI937520-03


In stock

The HI937520-03 are reagents for the colorimetric determination of magnesium. There are enough reagents for 150 tests to be used with a compatible benchtop or portable photometer. These high quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.

  • Pre-dosed reagents for ease of use
  • Supplied with certificate of quality
  • Marked with expiration date and lot number for traceability


The HI937520-03 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate colorimetric measurements. These reagents follow an adaptation of the calmagite method. The reaction between magnesium and reagents causes a red tint in the sample. By simply adding the reagent to the sample, a reaction will take place and a compatible benchtop or portable meter can be used to determine the concentration from the color that is produced. The results will be displayed in mg/L (ppm) of magnesium. These reagents are designed to be used with samples that have an expected range of 0 to 150 mg/L magnesium.


Compatible Photometers Include:

  • HI83099
  • HI83200
  • HI83225

Additional information

Weight 1.97 kg



SKU HI93752-03
Name Calcium and Magnesium Hardness High Range Reagents (300 tests) – HI93752-03
Package Bottles
Quantity 300 tests (150 tests Ca and 150 tests Mg)
Method For Calcium: Adaptation of the Oxalate method. For Magnesium: Adaptation of the Calmagite method.


Calcium and Magnesium Hardness High Range Reagents (300 tests) – HI93752-03