Tungstate have a protective effect to many metals and their alloys, and tungstate can play its certain corrosion inhibition as role in medium. Except for steel anticorrosion, tungstate also has corrosion inhibition for zinc, copper, aluminum, lead and nickel-molybdenum alloy.
Tungstate has some corrosion inhibition that be used alone, but the corrosion inhibition rate is not high, and the amount is large. The amount is generally 10-3 ~ 10-2 mol / L. In view of this situation, countries carried out the research for tungstate compound Inhibitor. It found that tungstate compound used with many compounds can significantly improve its corrosion inhibition performance; exploit synergies between tungstate and complexation can greatly reduce the amount of tungstate.