Corrosion inhibitor
HOSTAPHAT™ OPS 30
Edition Date :
November 04, 2025
Hostaphat OPS 30 is an aqueous solution of octane phosphonic acid and used as a corrosion inhibitor in water miscible systems. It is especially suitable for protection of aluminum against staining and corrosion in highly alkaline environments with pH values up to 11.
Product Information
Benefits
Excellent corrosion inhibition on zinc and aluminum
Suitable for acid pickling
Product details
Product Function
- Corrosion inhibitor
Applications
- Metal working fluids (semi-synthetic)
- Metal working fluids (fully synthetic)
- Metal cleaner
- Quenching fluids
| Appearance (20°C) | Gel-like flowable paste |
| Hazen color (APHA, 50% in ethanol) | Max. 50 |
| Active substance | Approx. 30% |
| pH (5% in water/ethanol 1:1, 20°C) | Approx. 2 |
| Water (Karl Fischer method) | Approx. 70% |
| Acid number | Approx. 170 mg KOH/g |
| Flash point (closed cup) | > 160 °C |
