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PRODUCT INFORMATION

BC-A

DESCRIPTION kept between 8 to 9. If the condensate pH is lower
than 8, the feeding should be increased. If the pH
BC-A is a special liquid concentrate of volalile a goes beyond 9.0, the feeding should be reduced.
mines formulated to give maximum protection from Use of BC-A at a maximum of total amine content not
corrosion in condensate system, even at the ends of exceed 100 ppm in the steam is within the safe
very long system. It is highly soluble in all proportion tolerance for use in treating steam that will contact
of water and boils between 96°C to 99°C under food, except for milk and milk products.
atmospheric pressure.

PURPOSE APPLICATION METHOD

BC-A may be fed separately or with other boiler
Carbon dioxide enters the condensate system both water treatment chemical to the feed water system
as dissolved gas and as the carbonate and has after deaerator if the boiler system has a
bicarbonate alkalinity in the boiler feed water. Under deaerator, to prevent some losses of the chemical.
higher temperature boiler operating conditions, Continuous feeding by chemical proportioning pump
decomposition of these alkalinity releases carbon is the most desirable. Drip method into the hot well is
dioxide into the steam. The carbon dioxide dissolve acceptable if the boiler system has no deaerator. To
in the condensate where it forms carbonic acid, minimize loss through evaporation, keep container
which will lower the pH. Iron dissolve more rapidly at closed. Any convenient volume of low temperature
lower pH values. This increases the corrosion rate in (100°F) water can be mixed with BC-A to prepare the
the condensate system. BC-A has been designed to feed solution.
neutralize the acid released by the dissolution of Because of the high pH of the concentrated feed
carbon dioxide in condensate, it has a high basicity solution. Use feeding equipment made entirely of
value and relatively high “Distribution ratio” thus steel or alloys of iron plastic; brass or galvanized
provides best protection throughout the system. pasts should not be used.

ADVANTAGES HANDLING

1. When added to boiler feed water, it volatilizes 1. May be fatal if swallowed. If swallowed, call a
slightly ahead of the water and joins the steam. physician at once. Induce vomiting by giving soapy
When the steam condensate into water, it also or heavily salted water to drink. Repeat until vomit
condenses slightly ahead thus provides protection fluid is clean.
in vapour as well as condensate phases. 2. Harmful if inhaled. If inhaled, move person to fresh
2. Protect all metals (rather than just iron on steel) air and give artificial respiration, preferably mount
from corrosion caused by carbon dioxide. to mount if breathing has stopped. If breathing is
3. Protect all of the condensate system even though labored, give oxygen.
is fed only at one point. 3. Cause eye and skin irritation. In case of contact
4. Easy to test and control. with eye flush eye with plenty of water. If irritation
5. Does not break down to from ammonia and is persists, get medical attention. In case of contact
therefore safe for copper alloys in the system. with skin, wash with soap and water, flush
6. Can be easily fed directly from drum or can be thoroughly after handing.
mixed with water to any proportion.
7. Keep boiler clean by eliminating iron oxide
returned to the boiler as the result of carbon STORAGE
dioxide corrosion. Keep container closed, away from heat and open
flame, and store in a dry cool place.
FEEDING REQUIREMENT

BC-A amount required depends on the amount of PACKAGING
carbon dioxide, carbonate and bicarbonate in the BC-A is available for supply in steel drum with
boiler feed water. Feeding is controlled by measuring polyethylene inner bags containing 25 Kgs. and 200
the pH of the returning condensate which must be
Kgs. net weight.
TECHNICAL SERVICE
WELLMAN CO.,LTD HAS A STAFF OF TECHNICAL SERVICE
ENGINEERS WHO WILL ASSIST AND TRAIN YOUR MEN ON THE PROPER
EVALUATION AND APPLICATION OF OUR CHEMICALS AND GIVE
RECOMMENDATION TO ENSURE SMOOTH OPERATION
THIS SERVICE IS GIVE FREE OF CHARGE