Datasheet summary
AWC-C-237
Engineering summary from PDF text extraction for AWC-C-237. Verify every value with the OEM datasheet.
Summary
Product identification
AWC® C-237 is a Reverse Osmosis Membrane Cleaning Compound.
Advantages
- Concentrated liquid formulation designed for use as a high pH cleaner of polyamide thin film composite membrane surfaces.
- Works to remove the most stubborn biofilms and organic foulants.
- Supports the cleaning of acid insoluble sulfates of calcium, barium and strontium as well as calcium fluoride.
- Effective in removal of metal oxide deposits when used in a pH range of 9 – 10.5.
- Buffered so as not to exceed a pH of 12.
- May eliminate need for repeat cleanings where severe fouling exists.
- 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: Clear light yellow liquid
- Odor: Slight characteristic
- Solubility in water: Complete
- pH (as is) @ 25°C: >12
- Specific Gravity: 1.25 ± 0.05
Chemical Feeding and Control
The cleaning solution should be prepared using potable water that is free of residual chlorine or other oxidizing agents. A 2% solution is recommended by adding 2 gallons of AWC C-237 to every 100 gallons of water. The cleaning solution pH should be adjusted in the range 10–11.
Recirculate the cleaning solution throughout the system after redirecting the first 20% of the solution to drain. Do not exceed pressures, temperatures, and flow rates recommended by the membrane manufacturer.
Cleaning efficacy can be improved by heating the cleaning solution and alternately circulating it for 15 minutes and then soaking the membranes for 15 minutes, repeating as necessary. The pH range should be monitored periodically and adjusted by adding more AWC C-237 if it drops below the desired range. Optimal iron removal occurs at a pH of 8.5 – 10.5.
Safety & Handling
Store in a cool, dry, and well-ventilated area. Keep containers closed. Wash contaminated clothes before re-use. Wash thoroughly after handling. For more information, see the Safety Data Sheet provided with this product.
Packaging
- 5 gallon pails
- 55 gallon non-returnable plastic drums
- 275 gallon totes
Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.