Applications

1. Marine Boiler Water Treatment

RXSOL Alkalinity Control is intended for maintaining suitable boiler water alkalinity in marine auxiliary boilers and other approved shipboard steam-generating systems.

2. Industrial Steam Boilers

Used in boiler treatment programs for industrial plants, manufacturing facilities and process steam applications.

3. Boiler Water pH Adjustment

Helps correct insufficient boiler water alkalinity, according to water analysis and the boiler manufacturer's recommended control limits.

4. Boiler Corrosion Control

Supports corrosion management by maintaining suitable alkaline conditions on internal boiler surfaces.

5. Phosphate Boiler Treatment Programs

Can be used alongside compatible phosphate-based boiler treatment chemicals where separate alkalinity adjustment is required.

6. Boiler Water Conditioning

Helps maintain appropriate water chemistry during routine boiler operation, subject to proper monitoring and blowdown control.

RXSOL-50-5002-025 provides the alkaline condition for hardness control to function correctly. Without the correct precipitation and subsequent blow down of hardness salt, scale would form. This would result in restriction in water flow, ineffective heat transfer and local corrosion. The end effect would be an inefficient boiler and ultimately component failure. RXSOL-50-5002-025 also provides the alkaline condition required for corrosion control, by neutralization of acidic gases

For optimum results dose RXSOL-50-5002-025 direct to the boiler with a RXSOL Boiler Water Treatment Dosing unit, or via the bypass pot- feeder installed in the boiler feed line.

Required dosage can be controlled by pH & alkalinity test dosage chart .  

1 milliliter of RXSOL-50-5002-025 concentrated alkaline liquid per ton of distilled water provides 0.5 ppm of lkalinity hydrate.

Low-pressure boiler (up to 28 bars)

Add RXSOL-50-002-025 to 5 litre in feed – water, There is no any specific method can be passed through the recalculating or the main feed pipe into the stream or the hot well tank.

High – Pressure Boiler (28 to 60 bars)

Dissolve the desired volume of RXSOL-50-002-025 to 5 ltr of feed – water, which should then be passed  into the stream or water drum through the chemical pump.

 
Note:- It can also be used as a neutralizing agent following acid cleaning with  descaling materials ( RXSOL-11-1008--DC descaling Liq / RXSOL-54-1008-SA Safe Acid PWD ) 

Recommended Dosage and Application

Dosage must be determined from actual boiler water alkalinity, system volume, operating pressure, feedwater quality and the concentration of the supplied RXSOL formulation.

Unlike general-purpose detergents, boiler alkalinity control chemicals should not be dosed using a fixed universal percentage.

General Dosing Procedure

1. Collect a representative boiler water sample using an approved cooled sampling arrangement.

2. Measure boiler water pH, P-alkalinity, M-alkalinity and conductivity.

3. Compare the results with the boiler manufacturer's recommended operating limits.

4. Calculate the required chemical addition based on the alkalinity deficit and product concentration.

5. Introduce the product through an approved chemical dosing system.

6. Allow adequate circulation and mixing.

7. Retest boiler water and adjust dosing gradually.

8. Maintain routine monitoring and appropriate boiler blowdown.

Example: Alkalinity Adjustment Calculation

For a hypothetical boiler containing 10,000 litres of water, assume the treatment program requires an additional 100 mg/L of hydroxide alkalinity expressed as CaCO₃.

The theoretical pure NaOH requirement is:

For a hypothetical 25% w/w sodium hydroxide solution:

This calculation assumes that the entire specified increase is attributable to sodium hydroxide, with no buffering or competing reactions. It is an illustration only, not a recommended field dose. Actual treatment requires analysis of the boiler water chemistry and verified product concentration.

Testing control procedure

1. Test water sample from the water boiler as described in the direction of the  Alkalinity Test Kit ( p & m Total ) http://www.rxmarine.com/Alkalinity-test-kit
2. Determine the present alkalinity value expressed as ppm CaCO₃ .
3. Desired level of 100-150 ppm as CaCO₃.
4. A control test for the alkalinity  of the water should be conducted after 3- 6 hours from the application.

Technical Specifications

These are proposed characteristics of an alkaline boiler treatment formulation. Actual RXSOL specifications, product code, hydroxide concentration, density and packaging must be confirmed from the approved TDS and batch COA.

Alkalinity control makes sludge in soft form, which can be easily blown down from bottom side of BOILER.

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