AWC-C-206

Summary

Product Identification

• Product Name: AWC® C-206
• Description: Low pH Membrane Cleaning Compound

Advantages

• Low pH membrane-cleaning compound for dissolution of carbonate and phosphate scales
• Effectively dissolves and chelates iron, aluminum and other metal oxides
• Chelates light deposits of pH independent precipitants such as calcium fluoride, calcium sulfate, barium sulfate and strontium sulfate
• Compatible with all Thin Film Composite R.O. membranes from all major membrane suppliers
• Certified by NSF to NSF/ANSI Standard 60

Typical Properties

• Appearance: White granular powder
• Odor: Characteristic
• Solubility in water: Soluble
• pH (1 % solution): 2.0 - 3.0

Chemical Feeding and Control

• Use potable water free of residual chlorine or other oxidizing agents to prepare the cleaning solution.
• Preparation: Add 8-10 lb of AWC C-206 for every 100 gallons of water (~1 wt% solution).
• Adjust pH to between 2–3 by adding caustic soda or ammonium hydroxide in small increments.
• Circulate the cleaning solution throughout the system without exceeding membrane manufacturer's recommended pressures, temperatures, and flow rates.
• To improve cleaning efficacy, heat the cleaning solution and alternately circulate for 15 minutes and then soak membranes for 15 minutes. Repeat as necessary.
• Add AWC C-206 as needed to maintain the pH range of 2–3 throughout the cleaning process.
• Cleaning times will be recommended by your AWC representative based on fouling severity.

Safety & Handling

• Avoid breathing dust. Do not get in eyes, on skin or clothing.
• Keep container closed.
• Wash thoroughly after handling.
• Refer to the Safety Data Sheet for more information.

Packaging

• 50 lb. pails
• 400 lb. non-returnable plastic drums

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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