It is a catalysed oxygen scavenger in powder form.
OXYGEN SCAVENGER
RXSOL-40-5025-025 is a catalysed oxygen scavenger in powder form. It is a blend of sodium sulphite and a catalyst. It is recommended for the rapid and complete removal of dissolved oxygen from boiler feed water. RXSOL-40-5025-025 reacts with oxygen to produce sodium sulphate, which contributes to the dissolved solids in boiler feed water. (Na2SO3 + ½ O2 = Na2SO4).
RXSOL-40-5025-025 solution should be dosed continuously. Dissolve the required quantity of RXSOL-40-5025-025 gently in boiler feed water in a separate tank. Dose this solution continuously in the boiler feed water line after the deaerator.
Above 8 ppm of sodium sulphite is required for the removal of 1 ppm of dissolved oxygen from boiler feed water. About 10% to 20% of excess sulphite should be dosed to provide oxygen consuming reserve.
The table below gives the approximate dosage.
Feed Water Temperature
RXSOL-40-5025-025 dosage in gms per ton ofsteam generation
More than 80oC
15
60 to 80oC
30
40 to 60oC
60
Less than 40oC
100
The RX MARINE will provide technical assistance in arriving at optimum dosages for your operating conditions and requirements and in selecting a suitable dosing system for your plant
TEST METHOD ::: http://rxmarine.com/hydrazine-test-kit