ROCHEM BOILING-OUT CHEMICAL
ROCHEM BOILING OUT CHEMICAL is a heavy duty alkaline cleaner, containing specially selected sequestrates, powerful synthetic detergents, alkaline salts and soaps, which enable rapid penetration and economical removal of oil and grease films by saponification and emulsification. Not corrosive to ferrous metals, the purpose of Rochem Boiling Out chemical is to remove oil & rust traces from the metal surface.
Rochem Boiling Out chemical is a free flowing white powder, which is readily soluble in water.
DOSAGE & BOILING-OUT PROCEDURE
Before putting a boiler into service, it is necessary to remove all traces of oil and grease from the internal surface as it might lead to overheating and failure. For this purpose, the boiler should be filled with clean water somewhat below the working water level and Rochem Boiling-out chemical (previously dissolved in a suitable tank) run in through the manhole as recommended below –
5 KGS OF ROCHEM BOILING-OUT CHEMICAL PER 1000 LTRS OF WATER.
The boiler should be warmed through by a slow fire, keeping the manhole closed, immediately after adding the chemical and pressure allowed to rise slowly. It should be raised sufficiently to
give a strong blow of steam at the air cocks. It should be allowed to cool and later blown down for about 15 seconds on each blow-down valve and refilled to about 5 cm level in the gauge glass. On the following day, carry out the same process except that the pressure is raised to approx 25 percent of the normal working pressure. On the third day, carry out the same process and then drain the boiler as detailed below –
When the pressure falls to 0.04 MN/m2 (0.4 kgf/cm2), the unit is blown down completely until it is empty, refilled to flood the drum and superheater and blown down again. It should then be carefully inspected. If any trace of oil or grease is observed, the process of boiling-out should be repeated. If the boiler is found free from grease or oil or sediment, it should be closed and filled with feed water as specified by the manufacturer.
STORAGE AND HANDLING
Store in a dry place. Keep container closed when not in use. Avoid contact with skin. In case of contact, wash with large quantities of water. In case of contact with eyes, treat with large volumes of cold water and see a physician.