Zinc Phosphate Corrosion Inhibitor
A blended zinc and orthophosphate corrosion inhibitor formulated for open recirculating cooling water systems. Zinc ions provide cathodic inhibition while phosphate anions form a mixed ferrous phosphate/zinc hydroxide barrier film on metal surfaces. This combination delivers superior mild steel protection at lower total inhibitor concentrations than either component alone.
Technical Specifications
| dosage | 10–30 mg/L (as Zn in system) |
| density | 1.10–1.25 g/cm³ |
| appearance | Clear to slightly hazy liquid |
| pH as supplied | 2.5–4.5 |
| zinc content as Zn | 1–5% |
| phosphate content as PO4 | 8–15% |
Applications
- Open recirculating cooling tower mild steel protection
- Industrial process heat exchanger corrosion control
- Condenser water circuits in commercial HVAC systems
- Steel piping and storage tank protection in water circuits
- Combined scale and corrosion program in cooling water
Key Features
- Dual cathodic (zinc) and anodic (phosphate) inhibition mechanism
- Superior mild steel corrosion protection in open recirculating systems
- Effective at lower total zinc levels than zinc-only programs
- Compatible with phosphonate-based scale inhibitors
Send Inquiry
More in Specialty Water Treatment Chemicals
1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP)
2809-21-4
Aluminum Sulfate Coagulant (Alum)
10043-01-3
Anionic Polyacrylamide Flocculant
9003-05-8
Anthracite Filter Media
68909-21-7
Bronopol Industrial Water Treatment Biocide
52-51-7
CMIT/MIT Blend Biocide (1.5%)
26172-55-4
CO2 pH Adjustment System for Water Treatment
Carbohydrazide Oxygen Scavenger
497-18-7