Polymaleic Acid
PMA, HPMA, Hydrolyzed Polymaleic Anhydride.
- CAS
- 26099-09-2
- EC
- 607-861-7
- Sectors
- Water & Wastewater Treatment, Oil, Gas & Energy, Home Care & Industrial Cleaning
Polymaleic Acid (CAS 26099-09-2) is a polymaleic homopolymer supplied as a pale yellow to yellow aqueous solution and used as a threshold scale inhibitor that prevents calcium carbonate precipitation in cooling towers, boiler water treatment, desalination, oilfield water flooding and industrial cleaning formulations. Our Technical Grade aqueous solution is highly effective at preventing calcium carbonate precipitation in high-temperature environments.
The product offers superior threshold inhibition properties, maintaining its efficacy even in high-alkalinity and high-hardness water. It functions through crystal lattice distortion, preventing scale from adhering to heat exchange surfaces.
Due to its chlorine stability and low toxicity, PMA is a preferred choice for cooling towers and boiler water treatment. It is also utilized in industrial cleaning for its excellent sequestration and dispersing capabilities.
Typical Properties
| Molecular formula | (C4H4O4)x |
|---|---|
| Molecular weight | 116.07 g/mol |
| Form | Pale Yellow to Yellow Solution |
| Odor | Slight |
| Density | 1.18 (48% aq.) |
| Flash point | 95 °C |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Polymaleic Acid
Applications
- Desalination & Cooling Systems: Prevents scale formation in multistage flash (MSF) distillation and recirculating cooling water.
- Oilfield Chemicals: Used as a scale inhibitor in water flooding and oil production processes to prevent pipe blockages.
- Industrial Detergents: Acts as a builder and dispersant in heavy-duty cleaning formulations to prevent mineral redeposition.
Safety & Risks
Classified as Corrosive and an Eye Irritant. Handle with Chemical Gloves, Safety Goggles, and Protective Aprons.
Packaging
250 kg Drums or 1250 kg IBC Tanks.