Polycarboxylic Antiscalants & Dispersants

HPMA Antiscalant (Hydrolyzed Polymaleic Anhydride) is a high-performance, low molecular weight polymeride (average molecular weight 400-800) renowned for its exceptional chemical and thermal stability. In industrial water treatment, HPMA stands out for its ability to operate in extreme conditions where other antiscalants fail, specifically in high-alkalinity and high-temperature environments.

Core Advantages of HPMA

• Extreme Temperature Tolerance: Maintains high scale inhibition efficiency even at 300° C for up to 100 hours, with a decomposition temperature exceeding 330°C
• Threshold Effect: Exhibits a significant threshold effect under high pH (8.3) and high temperature (350°C) levels.
• Versatile Scale Control: Excellent performance against Calcium Carbonate (CaCO3) and Calcium Sulfate (CaSO4) scales.
• Safety & Solubility: Completely soluble in water, non-toxic, and environmentally manageable.

Technical Specifications

Industry Applications

Due to its robust performance, HPMA is widely utilized across various heavy industries:

• Desalination: Flash vaporization equipment and distillation plants.
• Energy & Boilers: Low-pressure boilers, steam locomotives, and industrial circulating cool water systems.
• Oil & Gas: Crude oil evaporation, petroleum pipelines, and oilfield water injection/fill water.
• Construction: High-performance additives for cement systems.

Synergy & Usage

HPMA is most effective when used as part of a synergistic blend. When combined with organic phosphonates (at a typical dosage of 1-15ppm), it provides superior scale inhibition (up to 98%) compared to acrylate-based polymers. For carbon steel protection, HPMA shows excellent corrosion inhibition when formulated with zinc salts.

Handling, Package & Storage

• Packaging: Available in 25L Drum, 200L Drum, 1000L IBC, and ISO Tanks.
• Storage: Store for up to 10 months in a shady, dry place.
• Safety: Classified as Hazard Class 8 (UN 3265). Corrosive material. In case of contact with eyes or skin, flush immediately with plenty of clean water.

(z)-2-butenedioic acid homopolymer; hydrolyzed polymaleic anhydride; 2-Butenedioic acid (2Z)-, homopolymer; Hydrolized polymaleic anhydride; HoMopolyMer of Maleic Acid(HPMA); Poly(maleic acid) HPMA; 48% or 50% Polymaleic acid HPMA.