Refer to technical datasheet.

GENERAL RECOMMENDATION : 

NOTE ::: --   If nitrite level becomes 1440-2400 then doses should be ZERO.

RXSOL-11-1008-025  is mixed with fresh water 3 to 20 percent depending on deposition of scaling.

The most effective method is circulation for large systems or components like boilers, evaporators, condensers, heat exchangers and generally closed systems that have the capability to circulate at a temperature of approximately 40-60°C, for 6-12 hours and solutions of 10-40% of RXSOL-11-1008-025 in water. Keep in mind that the strength of the solution is analogous to the degree of deposition of scale .
In case of small components , the soak method in an immersion bath can be used.

If the equipment to be cleaned is contaminated by oil, grease, sludge or carbonized oil, then first of all clean the system with degreaser  RXSOL-10-1005.

RXSOL-11-1008-025 should be mixed with fresh water to form a solution of 5-30%, depending on the extent of scaling.

PRECAUTION :::it is essential to thoroughly rinse all metal surfaces at least once with a 0.5% solution of  RXSOL-20-2005  (  www.rxmarine.com/alkaleen-liquid-heavy-duty-25-ltr  ) in fresh water. This solution should be circulated for 2-4 hours or until an acceptable pH value is obtained. This will neutralize any remaining acidity & passivate steel surfaces.

RXSOL-11-1008--DC should not be used on Aluminium, Zinc, Tin, or any Galvanized Surfaces for which a special grade cleaner should be used. Chemical Cleaning Module Rx cleansers has developed a 280 litres capacity cleaning module, primarily designed for use with chemical acid solvents for descaling boilers, calorifiers, heat exchangers & other types of equipment where rust & scale form RXSOL-11-1008--DC Boilers, See Rx cleansers Practical Application Manual

For optimum results dose Hardness Control direct to the boiler via the bypass pot-feeder. The dry powder should be dissolved in hot water (50°C) at a ratio of 1 part powder to twenty parts condensate (e.g. 500 grams/10 litres). Ensure that treatment is fully dissolved before dosing.

Dosage and control

Select row on righthand side for applicable pressure range. Compare test result with comment in table and dose stated amount of product per ton boiler water volume.

These are recommended values based on experience and are in no way intended to replace the boiler manufacturer's specifications or company regulations.

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 ) 

6% Sodium Hypochlorite Solution. Disinfectant for use in drinking water. Use one drop of solution per 10 ltrs of drinking water, 600 ml of solution per 36 tons of drinking water.

General formulation to calculate  how much bleach is needed to add to a tank or a pipeline to disinfect it to a given chlorine residual using a given disinfectant. Usually someone wants to know how to meet an AWWA Standard (like C651-92, Disinfection of Water Mains). The equation below should be used to estimate the amount of sodium / Calcium hypochlorite (Chlorine Water is 6.00% sodium hypochlorite) needed to disinfect a given quantity of water to a desired chlorine concentration. 

For example , say you had installed a new 5,000 gallon tank and wanted to make sure that you had at least a 100 ppm solution of chlorine in it.

How much 6.00% Hypochlorite would you need to add  ?

• (5,000 gal x 100 ppm) / (1,000,000 x .06) = 8.33 gallons

How much 12% Hypochlorite solution would you need ?

• (5,000 gal x 100 ppm) / (1,000,000 x .12) = 4.17 gallons

If you use calcium hypochlorite (the white, powder version of chlorine, like HTH pool cleaner), the equation becomes:

• This is simply the previous equation multiplied by the conversion factor of 8.33 pounds per gallon of water.

Let's assume that we still need to disinfect 5,000 gallons at 100 ppm.

How many pounds of 65% calcium hypochlorite (HTH pool cleaner) are needed?

• (8.33 lbs/ gal. x 5,000 gal x 100 ppm) / (1,000,000 x .65) = 6.4 pounds

AUTOMATIC SCRUBBERS:
Initially place 20 -30 ml. of defoamer per gallon capacity of the pickup tank (8 mL/L) 1:128. Intended for recovery tanks only.

Refer this link for complete set of HOLD CLEANING KIT  ::: http://rxmarine.com/Ship-hold-cleaning-kit-set-supplier
 

The Importance High-Pressure Cleaning

The job of high-pressure cleaning can be done easier & quicker by simply using AquaTuff incorrect dosages. Using a high-pressure cleaner alone, without any CLEANER, will not  achieve  optimal cleaning results High-pressure cleaning primarily refers to cleaning of Hard  surfaces, such  as Decks, Tanks, Engine-rooms, etc. and in the majority of cases the cleaning is done according to the so-called two-step method:

Step 1:  Spraying the  AquaTuff over the area to be cleaned.
Step 2:   Washing down the area using a high-pressure water jet.

After the AquTuff has been sprayed on the surface and before the wash down begins, the chemicals penetrate & thoroughly moistens dirt & other grime. During wash down, the AquaTuff thoroughly dissolves the particles of dirt, even oil and fat, in the water spray and thus achieves optimal cleaning results.In addition to being more effective, the use of AquaTuff substantially reduces the time required for the Cleaning operation, as well as preventing dirt from reforming on the surface. The use of AquaTuff in correct dosages is half the job done.

General Cleaning :- AquaTuff can be used for all types of cleaning &  degreasing & may  be applied by  Brush, Hand spray, high and low-pressure washing machines etc. Time necessary for cleaning depends on the nature and thickness of the deposits. 20-30 min. will suffice for   most applications. Hardened, carbonised or aged deposits may require up to 4 hours. If  the cleaning solution is not heavily contaminated, it may be re-used at a later stage. If allowed to cool, the de-gassing procedure must be repeated. Depending on the degree of contamination AquaTuff should be mixed with warm water at a rate of 50-200 ml   per 10 litres. i.e. 1 cup of AquaTuff to a bucket of water. The aqutuff solution can be applied  simply by mops, brushes or rags, or by dipping the soiled articles into  the Aquatuff solution. After cleaning, rinse off with cold or warm water. Due to high foaming properties, AquaTuff is not recommended for washing machines. 

20-50 % with fresh water . Also acts as an acid-neutralizing agent for Boiler & Colling systems during cleaning & maintenance.
Heavy Soil deposition                    Use Undiluted from to 20-50% diluted with water. 
Medium soil deposition                 10-20%  diluted with water. 
Light Soil ( general degreasing )   5-10% diluted with water.

RXSOL-40-4035-025 The objective is to maintain a hydrazine residual between 0.05-0.2 ppm depending on operating pressure and boiler designe. Actual consumption is determined under operating conditions. A normal dosage is approximately 1 ltr. per day, depending of system layout.

Dose of Sulfite  can be controlled by this method :::  Because it readily reacts with oxygen to form sulfate, sulfite is not usually found in natural water systems. In its most common form, sodium sulfite, it is widely used as an oxygen scavenger in feedwater conditioning to prevent pitting in boilers; as a pulping or pulp-bleaching agent by the paper industry; to neutralize residual chlorine in potable water, sewage, industrial effluents, and textile process waters; and as a reducing agent in still other manufacturing processes. 

Sample water over 100°F will cause a false-high reading; therefore, quickly cool to room temperature before testing. To prevent a false-low reading caused by the reaction between sulfite and ambient air or dissolved oxygen, water samples should be capped while cooling and then tested without delay. An iodometric drop test is the most popular field method for determining sodium sulfite concentrations. 

Reagent packs, containing an instruction and chemicals only, may be purchased for use with buret setups. Note: Sulfide and ferrous iron cause positive interference; copper and nitrite cause negative interference.

Sulfite, Titrimetric Method(0-100ppm)

The test  for sulfite is based on the colour change end point reaction. At the end point reagent combines with the indicator to form a blue color. 

Apparatus Required

Buret, automatic, 25 ml    -  1 ( Sample Tube, Graduated, 25 mL, plastic w/cap and white dot )
Casserole porcelain, 210 ml  -  1
Cylinder, graduated, 50 ml  -  1
Measuring dipper (plastic)  -  1
Stirring rod, glass    -  1 

Chemicals Required

TK - 13 ::: RXSOL-62-5503-002
TK - 14 ::: RXSOL-62-5503-003
TK - 15 ::: RXSOL-62-5503-004  ( 1 ml =0.5 mg SO3 )
 

Procedure for Test

The water sample should be freshly obtained with as little contact as possible with air. Do not filter the sample, but cool it to room temperature (70 to 800F).
NOTE: 
Sample must be cooled to less than 100ºF (38ºC) to prevent high test results. 
Sample must be protected from air contact while cooling to prevent low test results. 

1. Measure 50 ml of the water sample with the graduated cylinder . For error free result Collect water to be tested in a clean, preferably large-mouthed, bottle to overflowing. Immediately cap and cool to room temperature. 

2. Add three or four drops of TK - 13 ::: RXSOL-62-5503-002  to the sample Swirl to mix. Sample should turn red. 

3. Add  TK - 14 ::: RXSOL-62-5503-003 Powder a dipper at a time, swirling after each dipper, until color changes from red to colorless. Add 2 more dippers. Swirl until dissolved.  ( Note : Use the plastic dipper to add TK - 14 ::: RXSOL-62-5503-003 to the sample. Add only one measure at a time and stir thoroughly between each addition of TK - 14 ::: RXSOL-62-5503-003. All the particle of TK - 14 ::: RXSOL-62-5503-003 may not dissolve and this may create a slight haze in the sample. Continue to add the TK - 14  in this manner until the red color disappears. It is not necessary that the sample solution be exactly neutralized, only that the sample turn colorless. When the sample is colorless, add one additional measure of TK - 14 ::: RXSOL-62-5503-003 and stir. )

4. Add TK - 15 ::: RXSOL-62-5503-004 Reagent dropwise, swirling and counting after each drop, until color changes from colorless to a faint but permanent blue. Always hold bottle in vertical position. 
This color change is taken as the endpoint. Record the ml of TK - 15 ::: RXSOL-62-5503-004 solution used. 

Calculation of Results

FORMULA:    ppm sulfite as SO3  = ml  of TK - 15 ::: RXSOL-62-5503-004  x       500    /  ml SAMPLE  

                        Using a 50 ml sample, sulfite, in parts per million as SO3  is equal to the ml of TK - 15 ::: RXSOL-62-5503-004 required multiplied by 10. 

Limitations of Test :::

This method is rapid and adaptable to field determinations.  It is affected by any oxidizable substances in the water such as organic matter sulfides and nitrites.  The presence of these interfering substances will cause the sulfite content obtained from this titration to by shown as a higher value than actually exists.  

Initial dosage for an untreated system is 9 litres of RXSOL 2000-III / 1000 litres of untreated distilled water. This will bring the treatment up to the minimum level of 1000 ppm nitrite. For best result and prolonged engine life add RXSOL 2000-III every 500 -6500 km. or 250 to 300 hours of running time or every 2 month interval .

Dosing method

Typical dose rate: 100 - 500ppm (0.1 - 0.5 litre/m3 of water) In a multistage bilge water cleaning system, Bilge Water Flocculant is fed undiluted through a dosage pump connected to the pressure side of the oil descaler. The floc tank is fed according to the flow of the bilge water pumped into it. The feed is adjusted in connection with the installation and normally needs no alteration. If required, dosing can also be controlled by measuring the level in the container.
 

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 ):

1. Measure 10 ml of SAMPLE WATER in graduated TEST TUBE / CYLINDER
2. 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 3^rd step otherwise if sample remains colourless ( Record p-Alkalinity = 0 ) .
3. 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 3^rdstep  )

PROCEDURE for p-ALKALINITY  & TOTAL ALKALINITY ( STEP WISE ):

1. Measure 10 ml of SAMPLE WATER in graduated TEST TUBE / CYLINDER
2. 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 3^rd step otherwise if sample remains colourless ( Record p-Alkalinity = 0 ) then proceed to STEP- 4.
3. 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
4. Add 2-3 drops of RXSOL TK8 and mix with stirring rod , the sample will turn to BLUISH-GREEN .
5. 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 3^rdstep  )

Total Alkalinity ppm CaCO₃VALUE  =  A +  { 25 X ( Total Number of DROPS of TK9 , during 5^th step  )}

RXSOL-11-1008-025  is mixed with fresh water 3 to 20 percent depending on deposition of scaling.

The most effective method is circulation for large systems or components like boilers, evaporators, condensers, heat exchangers and generally closed systems that have the capability to circulate at a temperature of approximately 40-60°C, for 6-12 hours and solutions of 10-40% of RXSOL-11-1008-025 in water. Keep in mind that the strength of the solution is analogous to the degree of deposition of scale .
In case of small components , the soak method in an immersion bath can be used.

If the equipment to be cleaned is contaminated by oil, grease, sludge or carbonized oil, then first of all clean the system with degreaser  RXSOL-10-1005.

RXSOL-11-1008-025 should be mixed with fresh water to form a solution of 5-30%, depending on the extent of scaling.

PRECAUTION :::it is essential to thoroughly rinse all metal surfaces at least once with a 0.5% solution of  RXSOL-20-2005  (  www.rxmarine.com/alkaleen-liquid-heavy-duty-25-ltr  ) in fresh water. This solution should be circulated for 2-4 hours or until an acceptable pH value is obtained. This will neutralize any remaining acidity & passivate steel surfaces.

RXSOL-11-1008--DC should not be used on Aluminium, Zinc, Tin, or any Galvanized Surfaces for which a special grade cleaner should be used. Chemical Cleaning Module Rx cleansers has developed a 280 litres capacity cleaning module, primarily designed for use with chemical acid solvents for descaling boilers, calorifiers, heat exchangers & other types of equipment where rust & scale form RXSOL-11-1008--DC Boilers, See Rx cleansers Practical Application Manual

HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid. It is used as a strong chelating agent for metal ions like Ca, Mg & Fe in water treatment, textile applications. Its efficient inhibition for CaCO3 & CaSO4 alone or in combination with low molecular weight polymers. Very effective in protecting metal corrosion. HEDP also having very strong chlorine stability. 

Process for DE CHLORINATION ::: 

Dissolve the 500 grams of Sodium Thiosulfate in a large pitcher of lukewarm tap water. Stir until all the crystals are dissolved. Then transfer the solution with a funnel to the gallon jug. Top off the jug to make a full gallon of stock solution.

• Add two drops of the stock solution per one gallon of the water to be treated.
• One gallon can treat 37,850 gallons or more. Over-dosage is virtually impossible.

An amorphous from of carbon characterized by high adsorptivity for many gases, vapors, and collodial solids.

Used for water and air purification, solvent recovery, waste treatment, removal of sulfur oxide from stack gases and "clean'' rooms as deodorant, and for air conditioning.