Product Application

RXSOL-54-1048-020  is mixed with fresh water 3 to 20 percent depending on deposition of scaling.

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-54-1048-020 should be mixed with fresh water to form a solution of 10-30%, depending on the extent of scaling. After using RXSOL-54-1048-020 ,  

PRECAUTION :::it is essential to thoroughly rinse all metal surfaces at least once with a 0.5% solution of  RXSO-20-2005  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.

Procedure-of-use: The most effective descaling is accomplished by circulation.In the 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 or sludge, then pre-cleaning with DEGREASER ( RXSOL OB 1005 ) is necessary. Depending on the extent of scaling, use a solution of 2.5-10% RXSOL-54-1008-025 . The solution will have a red colour which changes to orange when 85% of the acid has been neutralized , & to colourless  when the solution is totally neutralized. Whenever possible, the solution should be heated to 60°C.Neutralised  solutions can be re-activated by adding more RXSOL-54-1008-025  until the red colour reappears. 

Fields: Descaling of  Boilers, Descaling  of Diesel Engine Cooling Systems, Condenser, Pipeline collection system, Evaporators, Calorifiers, Heat Exchangers,The strength of the acid can be enhanced by adding 1part sodium chloride (common salt) to 20 parts of Descalex.If salt is not available, an acceptable alternative is to dissolve RXSOL-54-1008-025  in sea water. After use of RXSOL-54-1008-025  a  0.5% solution of Alkalinity Control in fresh  water should be used for neutralization.