Product Name: Polymaleic acid
Synonym: (Z)-2-Butenedioic acid homopolymer; Hydrolyzed polymaleic anhydride; HPMA; PMA
Molecular Structure:
Specifications:
| Item | Specifications |
| CAS No. | 26099-09-2 |
| Molecular Formula | (C4H4O4)n |
| Molecular Weight | 450 |
| Appearance | Pale yellow to brown transparent liquid |
| Solid content | ≥48.0% |
| Bromine value | ≤80.0 mg/g |
| PH(1% solution) | 2.0-3.0 |
| Density(20℃)g/cm3 | ≥1.18 |
Packing: 25kg/Drum; 200kg/Drum
Function:
HPMA is a low-molecular-weight polyelectrolyte, generally with a relative molecular weight of 400-800, non-toxic, easily soluble in water, high chemical and thermal stability, and its decomposition temperature is above 330°C. It has obvious solubility limit effect at high temperature (<350°C) and high PH. It is suitable for alkaline water quality or used in combination with other medicines. It still has a good scale inhibition and dispersion effect on carbonates below 300°C, and the scale inhibition time can reach 100h. Due to its excellent anti-scaling performance and high temperature resistance, it is widely used in seawater desalination flash evaporation plants, low-pressure boilers, steam locomotives, crude oil dehydration, water and oil pipelines, and industrial circulating cooling water. In addition, this agent has a certain corrosion inhibition effect, and the compound effect is better when combined with zinc salt. It can also be used in cement admixtures.
Application:
HPMA is usually compounded with organic phosphonates at 1-15ppm, and is used for circulating cooling water, oilfield water injection, crude oil dehydration treatment and low-pressure boiler furnace treatment. Up to 98%. When it is compounded with zinc salt, it can effectively prevent the corrosion of carbon steel.
Storage:
Stored in a cool dry and ventilated place
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