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It is a well - balanced blend for boiler water treatment products, resulting in a scale and corrosion control by one shot operation. A RXSOL Boiler treatment liquid one-step treatment to control the formation of rust and scale in low pressure and auxillary boilers with working pressure up to 20 bars.
Basic Boiler System Schematic
Below is a summary of problems associated with the common impurities in water and solutions to each problem.
List Of Problems Caused By Impurities In Water
|
Impurity (Chemical Formula) |
Problems |
Common Chemical Treatment Methods |
|
Alkalinity (HCO3-, CO32- and CaCO3) |
Carryover of feedwater into steam, produce CO2 in steam leading to formation of carbonic acid (acid attack) |
Neutralizing amines, filming amines, combination of both, and lime-soda. |
|
Hardness (calcium and magnesium salts, CaCO3) |
Primary source of scale in heat exchange equipment |
Lime softening, phosphate, chelates and polymers |
|
Iron (Fe3+ and Fe2+) |
Causes boiler and water line deposits |
Phosphate, chelates and polymers |
|
Oxygen (O2) |
Corrosion of water lines, boiler, return lines, heat exchanger equipments, etc. (oxygen attack) |
Oxygen scavengers, filming amines and deaeration |
|
pH |
Corrosion occurs when pH drops below 8.5 |
pH can be lowered by addition of acids and increased by addition of alkalies |
|
Hydrogen Sulfide (H2S) |
Corrosion |
Chlorination |
|
Silica (SiO2) |
Scale in boilers and cooling water systems |
Lime softening |
The dosage rate is dependent on bioler operating condition, feed 2-3 ltrs of RXSOL-50-5001-020 solution for per thousand ltr of bioler water then control the system by periodic Alkalinity test procedure. If p-Alkalinity is below 200 ppm increase the ratio of rxsol BWT 5001 solution. If p-Alkalinity is above 400 ppm reduce the concentration of RXSOL-50-5001-020 solution by dilution with water. RXSOL-50-5001-020 is strongly alkaline.RXSOL-50-5001-020 is best applied heat or diluted with any convenient strength on a continuous basis using a suitable chemicals pump. The product should be applied to the boiler feed tank or feed line to ensure adequate mixing.
CHARACTERISTIC :
- Convenient liquid treatment, which provides the basic alkalinity on which successful water treatment depends.
- Provides optimum conditions for hardness control to function.
- Neutralizes acid conditions.
- Will assist in keeping silica in suspension.
- Simple test to determine level of treatment.
- Can be used in boilers of all pressures.
- Can be used as a neutralizer after acid cleaning operations
- Suitable for use with all auxiliary boilers; waste heat units; economizers, package boilers, smoke and water tube boilers.
- Dispersant action suspends sludge and sediment particles for efficient blow down.
- Oxygen scavenging for optimum protection.
- Protects boiler, steam lines, condensate lines and feed water lines from corrosion.
- Fast action due to catalyst.
- Simple test to determine level of treatment.
Control is by simple boiler water tests or RX CLEANSERS can provide a suitable test kits for this purpose.
Used in low pressure and auxillary boilers
:::::::::::::::::::::Alkalinity TEST FOR BOILER & COOLING WATER ::::::::::::::::::::::::
REAGENT & APPARATUS :
Reagent: RXSOL TK 7 , TK 8 , TK 9 , . Apparatus : TEST TUBE , Titrator or DROPPER
PROCEDURE for p-ALKALINITY test ( STEP WISE ):
- Measure 10 ml of SAMPLE WATER in graduated TEST TUBE / CYLINDER
- Add 1-2 drops of RXSOL TK7 and mix with the stirring rod , If sample turns red / PINK ( which indicates presence of p-Alkalinity ) then follows 3rd step otherwise if sample remains colourless ( Record p-Alkalinity = 0 ) .
- Add RXSOL TK9 drop by drop ( by counting ) , mixing with the stirring rod until colour just disappears. Each drop is equivalent to 25 ppm of p-Alkalinity , expressed as CaCO3
RESULT : Each DROPS is equivalent to 25 PPM of Alkalinity .
NOTE : p-Alkalinity VALUE = 25 X ( Total Number of DROPS of TK9 , during 3rdstep )
PROCEDURE for p-ALKALINITY & TOTAL ALKALINITY ( STEP WISE ):
- Measure 10 ml of SAMPLE WATER in graduated TEST TUBE / CYLINDER
- Add 1-2 drops of RXSOL TK7 and mix with the stirring rod , If sample turns red / PINK ( which indicates presence of p-Alkalinity ) then follows 3rd step otherwise if sample remains colourless ( Record p-Alkalinity = 0 ) then proceed to STEP- 4.
- Add RXSOL TK9 drop by drop ( by counting ) , mixing with the stirring rod until colour just disappears. Each drop is equivalent to 15 ppm of p-Alkalinity , expressed as CaCO3
- Add 2-3 drops of RXSOL TK8 and mix with stirring rod , the sample will turn to BLUISH-GREEN .
- AddRXSOL TK9 carefully by counting drop by drop and mixing throughly until a light reddish pink colour develop.
RESULT : Each DROPS is equivalent to 25 PPM of Alkalinity .
NOTE : p-Alkalinity ppm CaCO3VALUE ( A ) = 25 X ( Total Number of DROPS of TK9 , during 3rdstep )
Total Alkalinity ppm CaCO3VALUE = A + { 25 X ( Total Number of DROPS of TK9 , during 5th step )}
|
NUMBER OF DROPS OF TK9 p-Alkalinity as CaCO3
1 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>25
3 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 75
5 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> > 125
20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> > 500
40 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 1000
Optimum Result : p-Alkalinity level is between 100 to 150 PPM is suggested. For Below 50 ppm , Dose ½ Ltrs of RXSOL-50-5001-020for 1000 Ltrs of BOILER WATER , to maintain p-Alkalinity level 100 ppm. Refill pack : REPLACEMENTS TK7 : ECONOMIC PACK ( 100 / 200 / 500 ml ) available TK8 : ECONOMIC PACK ( 100 / 200 / 500 ml ) available TK9 : ECONOMIC PACK ( 100 / 200 / 500 ml ) available |
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