This instruction manual is for Hanna HI 38079 Magnesium Test Kit. It introduces the kit composition, usage methods, precautions, etc.
The Hanna Instruments HI 38079 is a test kit designed for measuring magnesium in irrigation water. It utilizes a titrimetric method where calcium is removed by filtration, and the remaining magnesium is determined by titration with EDTA solution using Calmagite as an indicator. The kit includes all necessary reagents, vessels, and tools for up to 100 tests.
| Range (MR) | 0 to 240 mg/L (ppm) as Mg |
|---|---|
| Range (HR) | 0 to 726 mg/L (ppm) as Mg |
| Smallest Increment (MR) | + 2.4 mg/L as Mg |
| Smallest Increment (HR) | + 7.3 mg/L as Mg |
| Analysis Method | Titration |
| Sample Size | 26 mL |
| Number of Tests | 100 (average) |
The kit determines Magnesium in irrigation water via a titrimetric method.
The endpoint is indicated by a change in color of the indicator from red to blue.
Multiply the milliliters of titrant by 243.
The solution will change from wine red to purple without turning pure blue.