Product Name: Polymaleic acid
Synonym: (Z)-2-Butenedioic acid homopolymer; Hydrolyzed polymaleic anhydride; HPMA; PMA
|Appearance||Pale yellow to brown transparent liquid|
|Bromine value||≤80.0 mg/g|
Packing: 25kg/Drum; 200kg/Drum
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.
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.
Stored in a cool dry and ventilated place