Chemical Name: Molybdate Ion
Formula: MoO₄²⁻
CAS Number: 14797-55-8
Common Use: Corrosion Inhibitor
Health Risks: None known
What Is Molybdate?
Molybdate is a widely used corrosion inhibitor, especially popular in industrial water treatment and power generation sectors. It’s applied in both open and closed-loop cooling systems, where it helps protect metal surfaces from corrosion.
In water, molybdate ions (MoO₄²⁻) interact with oxidized iron to form a stable protective layer of molybdate and ferric oxide. This layer helps prevent further corrosion, making molybdate a valuable and environmentally friendly alternative to traditional chromate treatments—which can be toxic and highly regulated.
Why Choose Molybdate?
- Non-toxic: Unlike other corrosion inhibitors, molybdate is known for its low or negligible toxicity, making it a safer choice for personnel and the environment.
- Regulatory Flexibility: Currently, there are no specific regulations or restrictions on molybdate concentrations in water, providing flexibility in its use across various systems.
- Sustainability: As industries move toward greener practices, molybdate offers a more sustainable option without compromising corrosion protection.
Monitoring Molybdate in Water
Accurate measurement of molybdate concentrations is essential for optimal performance and system balance. Dissolved molybdate is typically measured in parts per million (ppm).
We offer a range of CHEMetrics testing kits designed for molybdate analysis:
- Low-range kits: 0–7 ppm
- High-range kits: 20–200 ppm
These kits are reliable, easy to use, and suitable for both field and laboratory applications.
View our complete selection of molybdate testing products [HERE].
Final Thoughts
Molybdate stands out as a reliable and eco-conscious corrosion inhibitor. Its effectiveness, ease of monitoring, and non-toxic profile make it a trusted solution for water treatment professionals. Whether you’re maintaining a cooling tower, boiler system, or other industrial process, molybdate offers the corrosion protection you need—without the regulatory hassle.
You can find this product here: https://www.gas-sensing.com/information/molybdate
