Hydrolyzed Polymaleic Anhydride (HPMA)
Chemical formula: (C4H4O4)n
Product appearance: Clear to umber transparent liquid
Valid period: 10 months
Storage: Storage in a low temperature and dry storeroom, away from fire and heat
Package: 250 kg drums
USAGE
- Often used together with organic phosphates in a dosage of 1-15 ppm for circulating cooling systems, systems with circulating water in oil wells, dehydration of crude oil and low pressure boilers;
- Effective in preventing scale formation and removal with 98% efficiency;
- When used together with zinc salts, it is a good corrosion inhibitor of carbon steel.
SPECIFICATIONS
Item | Standard |
Appearance | Clear to umber transparent liquid |
Solid content, % ≥ | 50.0 |
Bromine value, mg/g, % ≤ | 80.0 |
pH (1% solution) | 2.0-3.0 |
Density (20℃) g/cm3, % ≥ | 1.18 |