Hydrolyzed Polymaleic Anhydride (HPMA)
Hydrolyzed polymaleic anhydride (HPMA) is a low-molecular-weight water-treatment polymer used to inhibit mineral scale and support corrosion-control programs.
Also known as: HPMA, Polymaleic acid, Maleic acid polymer
Crown Step supplies Hydrolyzed Polymaleic Anhydride (HPMA) from qualified manufacturers in China for wholesale and export orders. Batch-specific COA, SDS and available regulatory documentation can be provided with the quotation.
Product Information
- International name: Hydrolyzed Polymaleic Anhydride (HPMA)
- Chemical formula: (C4H4O4)n
- CAS number: 26099-09-2
- Appearance: Clear, pale-yellow to amber liquid
- Packaging: 250 kg drums
- Storage: Store sealed in a cool, dry and well-ventilated area; typical shelf life 12 months
Typical Applications
- Industrial cooling-water systems
- Low-pressure boilers
- Desalination and evaporator systems
- Oilfield dehydration and pipeline treatment
- Scale and corrosion inhibitor blends
Typical Specification
| Parameter | Typical value |
| Solids | Min. 48% |
| Bromine value | Max. 80 mg/g |
| Average molecular weight | 400-800 |
| pH, 1% solution | 2.0-3.0 |
| Density at 20 °C | Min. 1.18 g/cm3 |
The values above are typical commercial specifications and must be confirmed against the current manufacturer’s COA before purchase.
For price, minimum order quantity, lead time and shipping terms for Hydrolyzed Polymaleic Anhydride (HPMA), send us your inquiry through the form below.