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Corrosion inhibitor closed cooling systems Molybdate Phosphonate
Molybdate and phosphonate based corrosion inhibitor for cooling water system. We are manufacturer and supplier of this special type of corrosion inhibitor which acts as Filming Agent to protect metal surface from corrosion and its chemical reaction also help to prevent formation of calcium phosphate deposition.
RXSOL-40-4018 is a superior molybdate/phosphonate based corrosion inhibitor developed for use in closed cooling water systems. RXSOL-40-4018 prevents corrosion and deposits in closed and aerated cooling water systems. RXSOL-40-4018 contains inhibitors for steel, copper and copper alloys in combination with dispersants. RXSOL-40-4018 keeps the surface of the cooling systems clean and provides thus the basis for the formation of an effective corrosion protection film.
Corrosion inhibitor closed cooling systems Molybdate Phosphonate is an exceptionally effective, concentrated liquid scale and corrosion inhibitor. It is designed for use in a wide range of open recirculating cooling water systems where clean, scale and deposit-free surfaces are required for maximum system life and efficiency. Corrosion inhibitor closed cooling systems Molybdate Phosphonate accomplishes this with one easy to use product, without the need of the synergistic use of a scale inhibitor. Corrosion inhibitor closed cooling systems Molybdate Phosphonate contains a special blend of anodic and cathodic corrosion inhibitors, designed to inhibit corrosion of ferrous metals by creating a passivating barrier.
A specific inhibitor is included also to protect copper alloys from corrosion. Corrosion inhibitor closed cooling systems Molybdate Phosphonate is used for corrosion and scale control in systems with corrosive or high scaling makeup water and system operating conditions. Corrosion inhibitor closed cooling systems Molybdate Phosphonate contains no chromate, phosphate, polyphosphate, zinc or heavy metals. It is a blend of molybdate and dispersants designed to provide minimum environmental impact while providing a highly effective corrosion control alternative.
Sodium molybdate has the advantage in that the dosing of lower ppm's of molybdate allow for lower conductivity of the circulating water. Sodium molybdate at levels of 50-100 ppm offer the same levels of corrosion inhibition that sodium nitrite at levels of 800+ ppm. By utilizing lower concentrations of sodium molybdate, conductivity is kept at a minimum and thus galvanic corrosion potentials are decreased.
RXSOL-40-4018 is mainly applied in secondary cooling water systems of Power Plants, in the cooling systems of blast furnaces, in systems for cooling the molds in continuous casting mills and in hot and cold water systems in the chemical industry. The program should be used with soft water, to avoid calcium phosphate deposition when the water losses are important.
Ingredient: Metal Pretreatment Filming Agent, Film Settlement Agent, Surface Activating Agent, Sodium Molybdate, Organophosphorus etc.
Corrosion Rate : ≤0.125mm / year (Steel)
Scale Formation Rate : ≤0.2mm / year
RXSOL-40-4018 is added neat or diluted to the cooling water. RXSOL-40-4018 can be mixed with water in any ratio.
Dosage requirements - The dosage rate is dependent on the system conditions and the amount of water lost from the system.
Systems should maintain 400 ppm - 1000ppm of product in the water, while systems with high water losses should maintain ca. 1500 ppm in the system.
For further technical assistance please contact RX MARINE TECH DEPT.
DOSAGE: Corrosion inhibitor closed cooling systems Molybdate Phosphonate dosages may vary somewhat according to operating conditions, but generally 400-1000 ppm of Corrosion inhibitor closed cooling systems Molybdate Phosphonate should be maintained in the system water. This dosage should be doubled for a two-week period when initiating treatment, whenever the system is refilled with fresh water, and after any major system upsets, in order to establish effective corrosion control. If the stability index of the recirculated water is higher than 10.5, an alkalinity booster such as RXSOL pH Booster should be fed to reduce the index to less than 10.5.
Corrosion inhibitor closed cooling systems Molybdate Phosphonate should not be used when the stability index of the system water is below 3.0.
Corrosion inhibitor closed cooling systems Molybdate Phosphonate is controlled by a molybdate test, which provides easy and accurate control readings. Maintain 1 to 5 ppm MoO4 = at all times.
FEEDING: Corrosion inhibitor closed cooling systems Molybdate Phosphonate must be fed continuously to the system by a positive displacement chemical feeder. For maximum results, feed should be linked to makeup of bleedoff through the use of a flowmeter or conductivity controller. Residuals are adjusted and maintained by chemical test of the system to provide a residual of 1-5 ppm MoO4 = .
HANDLING: Avoid contact with skin and eyes. Wear suitable protective equipment (refer to MSDS for further information).
ADVANTAGES:
- Single-package treatment for corrosion and fouling.
- Reduces maintenance time and costs.
- Corrosion inhibitor closed cooling systems Molybdate Phosphonate does not contain chromate, phosphate, polyphosphate, zinc or heavy metals.
- Corrosion inhibitor closed cooling systems Molybdate Phosphonate anti-fouling properties maximize heat transfer, minimize under-deposit corrosion.
- PROTECTS against galvanic corrosion in mixed-metal systems.
- EXCEPTIONALLY EFFECTIVE control of pitting of ferrous metals.
- Controls corrosion of both ferrous and non-ferrous metals. Protects most metals, including sweated copper lines from corrosive attack.
- Superior corrosion inhibition.
- Scale control agent
- Minimizes heat-absorbing sludge and mineral scale deposits in system.
- Remains effective at skin temperatures of 300o C and above.
- Helps extend equipment life.
- Does not affect non-metallic materials in cooling systems.
- Low toxicity, easy to handle and apply.
- EFFECTIVE corrosion control at stability indexes as high as 10.
This product can be use with other cooling watertreatment chemicals as it contains with special buffer agent which protect further chemical reaction with other chemicals.
We have other suitable product also for controlling of corrosion in cooling water system...
Roccor NB Liq Corrosion Scale Inhibitor ( COOLING WATER CORROSION & SCALE INHIBITOR )
Corrosion Inhibitor for Water Systems having unique formulation with highly concentrated liquid cooling treatment compound, ferrous & Non ferrous corrosion inhibitors, antiscalants, dispersant and buffer solution of non carbonate. Usefull for use in high or low temperature closed cooling water systems for the prevention of corrosion and scale formation in internal combustion engines, compressors, chiller system and DG sets. Protects all metals including cast iron, mild steels and copper. Recommended ppm levels are easily controlled by standered RXSOL test kit Nitrite / Chloride.
The stable protective microfilm prevents corrosion caused by electrolytic action and the alkaline nature of this product prevents acid attack.
The stability of the added polymers are very useful for water treatment processes. Such polymers with low molecular weights cannot only inhibit calcium, magnesium, and silica scale in cooling towers and boilers, but also help corrosion control by dispersing iron oxide.
Molybdate-Phosphate for Closed Circulation Machinery Cooling Corrosion inhibitor.
|
Appearance |
Clear Colourless to Pale Liquid |
|
Boiling point [oC] |
100 |
|
C Density [kg/m3] |
1.12 - 1.20 |
|
Flashpoint[oC] TCC |
NONE Vapour pressure [mm Hg] |
|
Pour point [oC] |
NONE Vapour density [a ir=1]: |
| Auto-ignition temp [oC] | NONE |
| Expl.omr. [vol%] Solubility in water [w-%]: | 100% |
| pH : | Slight Alkaline |
| Solubility | 100% in Distilled water |
| Rel. evaporation Rate. | N/A |
| Recommend Dosage ppm LEVEL | 400 to 1000 ppm |
| Soluble in organic solvent: | None |
Use proper chemical protective hand gloves and Eye Goggles.
Corrosion inhibitor closed cooling systems Molybdate Phosphonate is very effective in high hardness, highly alkaline scaling waters. It contains a proprietary blend of organic and polymeric sequestrants, penetrants and dispersants to minimize system fouling from contaminants such as calcium, silica, iron, sludge and organics. It also contains a unique blend of organic and actives to corrosion sites. Corrosion inhibitor closed cooling systems Molybdate Phosphonate is very effective also in low hardness, low alkalinity corrosive waters. It contains special filming ingredients to establish protective barriers against corrosion on ferrous metal surfaces. It also contains special filming ingredients to establish a protective barrier against corrosion and pitting on both yellow metal and ferrous metal surfaces.
Corrosion inhibitor closed cooling systems Molybdate Phosphonate is environmentally safe for discharge with the cooling system bleedoff. The formulation contains no heavy metals, chromates, or other pollutants requiring removal or treatment prior to discharge at normal usage rates.
Molybdate does not provide a nutrient source as do many other corrosion inhibitors. This eliminates a food source for algae and bacteria in the water system and makes control of microorganisms easier at lower microbiocide dosage rates. Corrosion inhibitor closed cooling systems Molybdate Phosphonate may be used alone as a single product for control of corrosion in systems where hardness and alkalinity does not pose a scaling problem, or in high hardness and/or high alkalinity waters where higher cycles of concentration and lower bleed rates are desired. Corrosion inhibitor closed cooling systems Molybdate Phosphonate offers superior corrosion protection for all metals typically found in cooling water systems. The blend of cathodic and anodic inhibitors provides a durable corrosion inhibitive film for maximum system protection and minimal corrosion rates.