AWC-A-109

Summary

Product Identification

AWC® A-109 is a reverse osmosis (RO) membrane antiscalant designed for high calcium carbonate feedwaters.

Advantages

• Inhibits inorganic scale formation in membrane separation processes.
• Inhibits calcium carbonate scale up to a Calcium Carbonate Nucleation Index (CCNI) of 2.3.
• Helps reduce or eliminate acid dosing in RO/NF feedwaters with high alkalinity, even at recoveries ≥ 90%.
• Effectively stabilizes metal ions and disperses insoluble metal oxides in the reject stream.
• Controls calcium fluoride, calcium sulfate, barium sulfate, and strontium sulfate scales in waters with high fouling potential.
• Environmentally compatible.
• Certified by NSF to NSF/ANSI Standard 60.

Typical Properties

• Appearance: Clear light yellow to amber liquid
• Odor: Characteristic
• Solubility in water: Complete
• pH (as is) @ 25°C: < 2.0
• Specific Gravity: 1.20 ± 0.05

Chemical Feeding and Control

• Normally fed continuously prior to the final cartridge filter.
• Injected by chemical dosing pump from a dilution tank or directly from the drum to the feedwater line.
• The required amount depends on feedwater quality and membrane system size.
• If dilution is necessary, do not exceed a 10X dilution to prevent over-dilution of food-grade preservatives.

Packaging

• 5 gallon pails
• 55 gallon non-returnable plastic drums
• 275 gallon totes
• Bulk shipments

Safety & Handling

• Store in a cool, dry place.
• Handle with care, avoiding contact with eyes and prolonged or repeated skin contact.
• Refer to the Safety Data Sheet for more information.

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror