Monitor molybdate corrosion inhibitors in closed-loop cooling and HVAC systems. Verify protective levels quickly with 0-350 ppm Indigo® molybdate test strips.
Closed-loop cooling and HVAC systems rely on corrosion inhibitors such as molybdate to protect metal surfaces from oxidation and pitting. Regular testing ensures that treatment levels remain within target ranges to prevent corrosion while minimizing chemical use. Indigo®’s molybdate test strips provide a quick, on-site indication of inhibitor concentration, helping facility engineers maintain efficient, low-maintenance systems without lab delays.
| Discipline | Learning Outcomes |
|---|---|
| Chemistry / Chemical Engineering | Understand the molybdate corrosion inhibition mechanism and its role in passivation films within closed-loop systems. |
| Mechanical / HVAC Engineering | Learn how water chemistry affects corrosion rates in heat exchangers, chillers, and coils; relate test results to maintenance intervals. |
| Environmental Compliance | Recognize the importance of monitoring molybdate to minimize discharge concentrations and support sustainable water treatment practices. |
| Practice | Benefit |
|---|---|
| Test weekly during startup or seasonal transitions. | Detects treatment loss early due to makeup water or leaks. |
| Record results in system logs or digital maintenance software. | Supports predictive maintenance and regulatory documentation. |
| Combine with conductivity and pH checks. | Gives a more complete picture of system health and chemical balance. |