BOILER WATER TREATMENT
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GC - Concentrated Alkaline Liquid
Description
GC concentrated alkaline liquid is used in conjunction with ADJUNCT B phosphate boiler water treatment to prevent the formation of calcium scale deposits. Both products are used in our standard boiler water treatment programs for low-pressure boiler systems (0-32 bar) and medium-pressure steam propulsion vessels (32-60 bar). They are also used in our ULTRAMARINESM boiler water treatment program for highpressure steam generating systems (60-84 bar).
The use of GC concentrated alkaline liquid in conjunction with ADJUNCT B treatment converts calcium hardness into soft, non-adherent sludge that is easily removed by blowdown.
Application
Dosage, Testing and Control: The boiler water daily alkalinity and/or pH test result determines the necessary dosage. For details on testing procedures, refer to the appropriate control and dosage chart or contact your local Drew Marine representative. One (1) milliliter of GC concentrated alkaline liquid per ton of distilled water provides 0.5 ppm of hydrate alkalinity.
Feed Points: Dose with ADJUNCT B phosphate boiler water treatment by diluting with condensate and feed directly to the steam drum (below water level) using a bypass pot feeder. For low-pressure boilers, GC liquid may be dosed to the hotwell or condensate return tank, although this is not the preferred method.
Additional Data
GC concentrated alkaline liquid can also be used as a neutralizing agent following acid cleaning with SAF-ACIDTM descaling compound. For details, refer to product data sheet.
Typical Physical Properties
Appearance: Clear liquid
Specific Gravity at 25° C (77° F): 1.5
Freeze Point: 1° C (34° F)
pH (neat): 14.0
Packaging
GC concentrated alkaline liquid is available in 25-liter containers
Important Information
Ashland maintains Material Safety Data Sheets on all of its products. Material Safety Data Sheets contain health and safety information for your development of appropriate product handling procedures to protect your employees and customers.
Our Material Safety Data Sheets should be read and understood by all of your supervisory personnel and employees before using Ashland products in your facilities.