The target dosage range is 3 - 5 ppm as PO4-3 in the recirculating cooling water.
Dosage Strategy
RXSOL Scale and Corrosion Inhibitor should be fed continuously to an area of good mixing. The product may be fed directly or may be diluted with good quality water and fed from a chemical dosing tank.
Performance Monitoring
Appropriate use of RXSOL Scale and Corrosion Inhibitor following the above dosing strategy should result in a corrosion rate of less than 2 mpy.
Test Methods
Phosphonate Drop test - Thorium Nitrate titration
Phosphonate UV photolysis + colour disc