Corrosion Inhibitor for
Closed Cooling Water Systems
Geopure® 4000 is a high-performance corrosion inhibitor
designed for closed loop cooling and chilled water
systems. It provides long-term protection to mild steel,
copper, and copper alloys by forming a stable and durable
passivation film on metal surfaces.
Closed systems, though less prone to scaling, are highly
susceptible to corrosion due to low make-up water and
stagnant zones. Geopure® 4000 effectively addresses this
challenge by maintaining corrosion control, minimizing
system leaks, and extending equipment life. It is suitable
for HVAC chilled water loops, process cooling circuits,
and other closed recirculating water systems.
- Type:Liquid
- Appearance:Clear to Pale Straw
- Odour:Slight
- Solubility in water:Complete
- Specific Gravity @ 25ºC:1.23 ±0.05
- pH(10% Solution):9.5 ~ 10.0
Physical Properties:
- Superior Corrosion Protection: Provides strong inhibition for ferrous and non-ferrous metals.
- Closed Loop Optimized: Specifically formulated for low make-up water and oxygen-limited systems.
- Film Formation: Develops a protective layer on system metallurgy to prevent oxidation and pitting.
- Copper Alloy Compatibility: Safeguards copper and brass components, preventing galvanic corrosion.
- Operational Reliability: Ensures long-term system protection with minimal maintenance.
- System Efficiency: Reduces corrosion-related fouling and leakage, enhancing heat transfer performance.
- Versatile Application: Suitable for HVAC chilled water loops, industrial closed cooling systems, and process cooling applications.
Geopure 4000 Nitrite based corrosion inhibitor
program should be added directly to the system in
its neat form either in makeup tank or dose thru pot
feeder system. Typically utilized at 500 to 1,500
ppm at pH>7.5. Residuals (150 to 250 ppm) must be
maintained to constantly repair gaps in the film
barrier.
Start-up Dosage Pattern
The start-up (passivation) dosage of Geopure 4000 is
5 – 10 Kg. for each 1000 Ltr. of water in the system
This will provide a sodium nitrite residual of 300
ppm as NO2.
Note:
If the make-up water has high chloride levels e.g.
brackish water, then the normal dose rate should be
doubled.
Geopure 4000 is 2.0 – 4.0 Kg. for every 1000 Ltr. Makeup or as per the residual level.
| pH | 9.5 – 10.5 |
| Conductivity | < 3,000 Micro Mhos |
| Total Hardness as CaCO3 | < 50 mg/L |
| Product Level (Nitrate as NO2) | 300 – 600 ppm |
| Product Level (Nitrate as NO2) | 300 – 600 ppm |
Please refer to your Geopure service engineer for exact product dosage.
| Proper human safety products such as Splash goggles, lab coat, vapour respirator, gloves and boots should be worn while handling and applying chemicals. Splashes on skin should be washed off with water immediately. In case of splashing into the eyes, flush it with fresh water and obtain medical attention. Should not be injected. Please refer MSDS for more details. . |
| This product should be stored in original containers in cool and dry place, away from sources of heat, flame and direct sunlight |