Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Industrial Additives Functions
- Technologies
Features & Benefits
- Industrial Additives Features
Applications & Uses
- Markets
- Applicable Processes
- Use Level
- max. 3 mg/l
- Preparation and Feeding Information
PWT 4816 is a single component emulsion polymer that must be pre-diluted in water before use. In most cases, this product should not be applied neat. One method for dilution is adding the neat polymer into the vortex of a mixed tank at a concentration between 0.25 - 1.0% polymer (0.5% is optimum)by weight. The polymer can also be injected through a number of commercially available systems that provide in-line mechanical mixing. Polymer solutions should be aged for 30-60 minutes prior to use for best results. Solution shelf life is 8-16 hours.
Properties
- Physical Form
- Appearance
- Clear to milky white liquid
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Anionic Charge | 30.0 | % | — |
| Average Non-volatile Solids | 37 - 38 | % | — |
| Freezing Point | 0.0 | °C | — |
| Bulk Viscosity | 1200.0 | cPs | — |
| Density | 8.7 - 8.8 | lbs/gal | — |
Regulatory & Compliance
- Regulatory Information
PWT 4816 is approved under NSF/ANSI 60 for drinking water treatment.
Storage & Handling
- Shelf Life
- 1 Year
- Materials of Construction
Cross-linked polyethylene, fiberglass, stainless steel or lined steel are the preferred materials of construction for bulk tanks. Avoid natural rubber and Buna-N gaskets as these materials swell when placed in contact with neat polymer. Unlined mild steel, black iron, galvanized steel, copper or brass are not recommended in any part of the feed system. Stainless steel, Viton or Teflon are the best choices for pump heads. For feed lines, polyethylene, PVC or reinforced Tygon tubing is recommended.
- Storage, Stability and Handling Information
Suggested in-plant storage life is one year in unopened drums. For best results, store at 50-80°F. Bulk tanks should be mixed by periodically recirculating the contents bottom to top. Bulk tanks can also be fitted with an agitator type mixer that reaches the bottom 2 feet of the tank. Do not allow emulsion polymers to freeze. Should freezing occur, allow the product to thaw thoroughly in a heated area and mix well before attempting to use it. For spills of PWT 4816, sprinkle salt, vermiculite or equivalent absorbent over the spill area and sweep the material into approved chemical disposal containers. Do not spray water onto a spill because the resulting gel is very difficult to clean up.