POLYMALEIC ACID HPMA 50% SOLUTION

Polymaleic Acid HPMA 50% Solution is an aqueous solution of a polycarboxylic acid polymer widely used as a scale inhibitor, dispersant, and threshold antiscalant in water treatment and industrial cleaning applications.
Polymaleic Acid HPMA 50% Solution is valued because Polymaleic Acid HPMA 50% Solution controls calcium carbonate, calcium sulfate, and other inorganic scale deposition at low dosages while dispersing suspended solids and preventing crystal growth.
Polymaleic Acid HPMA 50% Solution is commonly used in cooling water, boiler water, reverse osmosis pretreatment, detergents, and process water systems, and Polymaleic Acid HPMA 50% Solution performance depends on water hardness, pH, temperature, dosage, and overall program design.

CAS Number: 26099-09-2 (Polymaleic Acid; polymer)
EC Number: 607-702-9 (polymer; commonly associated)
Molecular Formula: Polymer (repeating unit commonly represented as (C4H2O4)n; solution form)
Molecular Weight: Polymer (varies by grade; typical low molecular weight range for HPMA)

Synonyms: Polymaleic Acid, HPMA, Hydrolyzed Polymaleic Anhydride, Poly(maleic acid), Polymaleate, Maleic Acid Polymer, Polymaleic Acid 50% Solution, HPMA 50% Aqueous Solution, Low Molecular Weight Polymaleic Acid, Antiscalant HPMA, Scale Inhibitor HPMA, Dispersant HPMA, Polymaleic Acid HPMA 50% Solution, HPMA 50% Solution, Polymaleic Acid 50% Solution, Hydrolyzed Polymaleic Anhydride 50% Solution, Hydrolysed Polymaleic Anhydride 50% Solution, HPMA Solution 50%, Polymaleic Acid Aqueous Solution 50%, Aqueous Polymaleic Acid 50%, Polymaleic Acid Liquid 50%, HPMA Liquid 50%, Hydrolyzed Polymaleic Anhydride Solution 50%, Hydrolysed Polymaleic Anhydride Solution 50%, Polymaleic Acid Water Solution 50%, Polymaleic Acid in Water 50%, Maleic Acid Polymer 50% Solution, Poly(maleic acid) 50% Solution, Polymaleic Acid Sodium-Free 50% Solution, HPMA Water Treatment Grade 50%, HPMA Technical Grade 50% Solution, Polymaleic Acid Technical Grade 50% Solution, Hydrolyzed PMA 50% Solution, Hydrolysed PMA 50% Solution, PMA 50% Solution, Poly Maleic Acid 50% Solution, Polymaleate 50% Solution, Maleic Polymer Acid 50% Solution, Maleic Acid Homopolymer 50% Solution, Polymaleic Acid Polymer Solution 50%, Polymaleic Acid Scale Inhibitor 50%, HPMA Scale Inhibitor 50%, Polymaleic Acid Dispersant 50%, HPMA Dispersant 50%, Polymaleic Acid Antiscalant 50%, HPMA Antiscalant 50%, Polymaleic Acid Threshold Inhibitor 50%, HPMA Threshold Inhibitor 50%, Polymaleic Acid Deposit Control Agent 50%

APPLICATIONS

Polymaleic Acid HPMA 50% Solution is used in cooling tower water treatment to inhibit calcium carbonate scale and maintain heat transfer efficiency.
Polymaleic Acid HPMA 50% Solution is incorporated into cooling water programs to disperse iron oxides, silt, and suspended solids for cleaner system operation.
Polymaleic Acid HPMA 50% Solution is used in open recirculating cooling systems to reduce fouling and scaling on heat exchangers.

Polymaleic Acid HPMA 50% Solution is used in boiler water treatment as a threshold inhibitor to reduce deposition of hardness salts on boiler surfaces.
Polymaleic Acid HPMA 50% Solution is incorporated into boiler programs to support sludge conditioning and improve blowdown efficiency.
Polymaleic Acid HPMA 50% Solution is used in low- and medium-pressure boilers to manage scaling tendency under controlled alkalinity.

Polymaleic Acid HPMA 50% Solution is used in reverse osmosis and membrane pretreatment to inhibit scale formation on membrane surfaces.
Polymaleic Acid HPMA 50% Solution is applied in desalination pretreatment systems to control carbonate and sulfate scales in high-recovery operation.
Polymaleic Acid HPMA 50% Solution is used in ultrafiltration and RO feedwater conditioning to maintain stable flux and reduce cleaning frequency.

Polymaleic Acid HPMA 50% Solution is used in detergents and industrial cleaners to disperse soils and prevent inorganic deposition during washing.
Polymaleic Acid HPMA 50% Solution is incorporated into CIP cleaners to control mineral films and improve cleaning performance in hard water.
Polymaleic Acid HPMA 50% Solution is used in institutional and industrial laundry formulations to reduce graying and mineral-related fabric stiffness.

Polymaleic Acid HPMA 50% Solution is used in pulp and paper process water to control calcium scale and improve machine runnability.
Polymaleic Acid HPMA 50% Solution is incorporated into papermaking wet-end programs to disperse pitch, stickies, and inorganic fines.
Polymaleic Acid HPMA 50% Solution is used in coating and white water loops to reduce deposition on equipment and improve cleanliness.

Polymaleic Acid HPMA 50% Solution is used in textile processing to control hardness salts and prevent scale on heaters and dyeing equipment.
Polymaleic Acid HPMA 50% Solution is incorporated into dye bath auxiliaries to reduce precipitation and improve reproducibility in hard water.
Polymaleic Acid HPMA 50% Solution is used in textile washing and scouring to disperse minerals and reduce redeposition.

Polymaleic Acid HPMA 50% Solution is used in oilfield water injection and produced water management to reduce scaling tendency in pipelines and separators.
Polymaleic Acid HPMA 50% Solution is incorporated into scale control programs for calcium carbonate and mixed salt scales under variable brine conditions.
Polymaleic Acid HPMA 50% Solution is used in geothermal and high-temperature water systems where threshold inhibition is required.

Polymaleic Acid HPMA 50% Solution is used in metalworking fluids to help control hardness precipitation and maintain stable emulsions.
Polymaleic Acid HPMA 50% Solution is incorporated into cutting and grinding fluids to disperse fines and reduce deposits in recirculating systems.
Polymaleic Acid HPMA 50% Solution is used in aqueous cleaning baths to prevent scale on heaters and spray nozzles.

Polymaleic Acid HPMA 50% Solution is used in building services water circuits to reduce deposition and maintain efficient operation of chillers and heat exchangers.
Polymaleic Acid HPMA 50% Solution is applied in closed-loop systems in combination with corrosion inhibitors to maintain clean surfaces.
Polymaleic Acid HPMA 50% Solution is used in district heating and cooling systems to control mineral precipitation in compatible designs.

Polymaleic Acid HPMA 50% Solution is used in water-based formulations as a dispersant to stabilize inorganic pigments and mineral fillers.
Polymaleic Acid HPMA 50% Solution is incorporated into ceramic slurries to improve dispersion and reduce settling.
Polymaleic Acid HPMA 50% Solution is used in construction chemical systems to reduce scaling risk in mixing and dosing equipment.

Polymaleic Acid HPMA 50% Solution is used in cleaning formulations for descaling applications when combined with suitable acids and corrosion inhibitors.
Polymaleic Acid HPMA 50% Solution is incorporated into descaling blends to keep dissolved minerals dispersed and reduce redeposition.
Polymaleic Acid HPMA 50% Solution is used in hard surface cleaners to improve performance in high-hardness water conditions.

Polymaleic Acid HPMA 50% Solution is valued because Polymaleic Acid HPMA 50% Solution provides threshold inhibition and dispersion at low dosage, helping reduce maintenance, improve heat transfer, and stabilize industrial water systems.

Polymaleic Acid HPMA 50% Solution is used as a scale inhibitor in industrial cooling water systems.
Polymaleic Acid HPMA 50% Solution helps control calcium carbonate scale by threshold inhibition.
Polymaleic Acid HPMA 50% Solution improves heat-transfer efficiency by reducing deposit formation.

Polymaleic Acid HPMA 50% Solution is applied in boiler water treatment programs to limit scale buildup.
Polymaleic Acid HPMA 50% Solution disperses hardness salts and prevents adherence to metal surfaces.
Polymaleic Acid HPMA 50% Solution supports cleaner boiler operation and reduced blowdown in optimized systems.

Polymaleic Acid HPMA 50% Solution is used in reverse osmosis pretreatment to reduce inorganic scaling risk.
Polymaleic Acid HPMA 50% Solution helps control calcium carbonate and calcium phosphate scaling on membranes.
Polymaleic Acid HPMA 50% Solution supports stable flux and longer membrane cleaning intervals when properly dosed.

Polymaleic Acid HPMA 50% Solution is used in desalination and brackish-water plants as an antiscalant.
Polymaleic Acid HPMA 50% Solution helps inhibit precipitation of sparingly soluble salts under high concentration factors.
Polymaleic Acid HPMA 50% Solution improves system reliability in high-hardness feedwater conditions.

Polymaleic Acid HPMA 50% Solution is used in cooling towers to disperse suspended solids and silt.
Polymaleic Acid HPMA 50% Solution helps prevent fouling layers that trap scale-forming ions.
Polymaleic Acid HPMA 50% Solution supports cleaner tower fill and improved water distribution.

Polymaleic Acid HPMA 50% Solution is used in closed-loop heating and chilled-water circuits to minimize deposition.
Polymaleic Acid HPMA 50% Solution reduces formation of mineral films that reduce heat exchange performance.
Polymaleic Acid HPMA 50% Solution supports stable system cleanliness under controlled corrosion-inhibitor programs.

Polymaleic Acid HPMA 50% Solution is used in industrial wastewater systems to keep precipitated salts dispersed.
Polymaleic Acid HPMA 50% Solution reduces sludge hardening by dispersing calcium and magnesium deposits.
Polymaleic Acid HPMA 50% Solution helps improve dewatering and handling characteristics of some sludges.

Polymaleic Acid HPMA 50% Solution is used in oilfield water injection systems as a scale inhibitor.
Polymaleic Acid HPMA 50% Solution helps control barium sulfate and strontium sulfate scaling in some programs.
Polymaleic Acid HPMA 50% Solution supports injectivity and reduces plugging risk in waterflood operations.

Polymaleic Acid HPMA 50% Solution is used in drilling and completion fluids to reduce scale and solids agglomeration.
Polymaleic Acid HPMA 50% Solution helps maintain brine clarity by inhibiting precipitation in some systems.
Polymaleic Acid HPMA 50% Solution supports stable rheology by dispersing fine particulates.

Polymaleic Acid HPMA 50% Solution is used in evaporators and heat exchangers to control scaling tendency.
Polymaleic Acid HPMA 50% Solution helps reduce mineral deposition on hot surfaces in high-temperature loops.
Polymaleic Acid HPMA 50% Solution supports longer run times between chemical cleanings.

Polymaleic Acid HPMA 50% Solution is used in pulp and paper wet-end systems as a dispersant for fines and pitch.
Polymaleic Acid HPMA 50% Solution helps reduce calcium-based deposits on wires, felts, and rolls.
Polymaleic Acid HPMA 50% Solution supports improved machine cleanliness and fewer sheet defects.

Polymaleic Acid HPMA 50% Solution is used in paper coating and pigment slurries to improve dispersion stability.
Polymaleic Acid HPMA 50% Solution helps prevent settling of calcium carbonate and clay in aqueous slurries.
Polymaleic Acid HPMA 50% Solution supports consistent viscosity and coating application performance.

Polymaleic Acid HPMA 50% Solution is used in textile processing to control scale in high-temperature dye baths.
Polymaleic Acid HPMA 50% Solution helps reduce deposition of hardness salts on fabric and equipment.
Polymaleic Acid HPMA 50% Solution supports more consistent dye uptake by reducing bath contamination.

Polymaleic Acid HPMA 50% Solution is used in laundry detergents as a builder-like dispersant for mineral soils.
Polymaleic Acid HPMA 50% Solution helps prevent redeposition of particulate soils on fabrics.
Polymaleic Acid HPMA 50% Solution supports improved cleaning performance in hard water conditions.

Polymaleic Acid HPMA 50% Solution is used in automatic dishwashing detergents to control scale on glass and machine parts.
Polymaleic Acid HPMA 50% Solution helps inhibit calcium carbonate spotting and filming.
Polymaleic Acid HPMA 50% Solution supports clearer glassware appearance after repeated wash cycles.

Polymaleic Acid HPMA 50% Solution is used in household and industrial cleaners as an antiscalant and dispersant.
Polymaleic Acid HPMA 50% Solution helps keep loosened mineral particles suspended for easier rinsing.
Polymaleic Acid HPMA 50% Solution supports cleaning of surfaces exposed to hard water residues.

Polymaleic Acid HPMA 50% Solution is used in industrial CIP programs to reduce scale formation during alkaline wash cycles.
Polymaleic Acid HPMA 50% Solution helps control precipitation of calcium salts when temperature and alkalinity are high.
Polymaleic Acid HPMA 50% Solution supports more consistent cleaning outcomes in hard-water plants.

Polymaleic Acid HPMA 50% Solution is used in metalworking fluids to disperse hardness salts and reduce deposits.
Polymaleic Acid HPMA 50% Solution helps keep fines and metal oxides suspended in circulating coolants.
Polymaleic Acid HPMA 50% Solution supports cleaner sumps and reduced nozzle clogging.

Polymaleic Acid HPMA 50% Solution is used in mining and mineral processing to control scaling in slurry pipelines.
Polymaleic Acid HPMA 50% Solution helps inhibit precipitation of carbonate and sulfate scales under concentrated conditions.
Polymaleic Acid HPMA 50% Solution supports improved flow assurance in water recirculation loops.

Polymaleic Acid HPMA 50% Solution is used in geothermal and high-silica water systems as part of deposit-control programs.
Polymaleic Acid HPMA 50% Solution helps manage mixed-mineral fouling when combined with appropriate treatment chemistry.
Polymaleic Acid HPMA 50% Solution supports more stable operation of heat exchangers in challenging waters.

Polymaleic Acid HPMA 50% Solution is used in ceramic and pigment slurries to improve dispersion and reduce agglomeration.
Polymaleic Acid HPMA 50% Solution helps stabilize particle suspensions by providing anionic charge and steric effects.
Polymaleic Acid HPMA 50% Solution supports consistent slurry rheology for processing and application.

Polymaleic Acid HPMA 50% Solution is used in gypsum and cement processing water to reduce scale in recirculation lines.
Polymaleic Acid HPMA 50% Solution helps disperse fine mineral particles and reduce buildup on equipment.
Polymaleic Acid HPMA 50% Solution supports improved uptime in high-solids construction-material operations.

Some Common Applications of Polymaleic Acid HPMA 50% Solution:
Industrial Cooling Water:
Polymaleic Acid HPMA 50% Solution is used in circulating cooling systems to prevent fouling.

Boiler Water Treatment: 
Polymaleic Acid HPMA 50% Solution is used in low-pressure and medium-pressure boilers.

Oilfield Injection:
Polymaleic Acid HPMA 50% Solution prevents scaling in oil extraction equipment and pipelines.

Desalination: 
Polymaleic Acid HPMA 50% Solution is used as a scale inhibitor in flashing seawater desalination units.

Polymaleic Acid HPMA 50% Solution is used in sugar, starch, and food-adjacent utilities to control scale in non-product water circuits.
Polymaleic Acid HPMA 50% Solution helps protect evaporators and condensers from mineral deposits in utility loops.
Polymaleic Acid HPMA 50% Solution supports energy efficiency by maintaining cleaner heat-transfer surfaces.

Polymaleic Acid HPMA 50% Solution is used in HVAC cooling loops in commercial buildings to reduce scale and fouling.
Polymaleic Acid HPMA 50% Solution helps maintain coil efficiency by limiting mineral deposition.
Polymaleic Acid HPMA 50% Solution supports lower maintenance frequency in well-managed systems.

Polymaleic Acid HPMA 50% Solution is used in fertilizer and process-chemical plants to reduce scaling in process water and scrubber loops.
Polymaleic Acid HPMA 50% Solution helps control deposits that restrict flow in packed towers and piping.

Polymaleic Acid HPMA 50% Solution is used in formulation development as a benchmark antiscalant polymer for screening studies.
Polymaleic Acid HPMA 50% Solution helps compare scale inhibition performance versus phosphonates and other polymers.

DESCRIPTION

Polymaleic Acid HPMA 50% Solution is a low molecular weight polycarboxylate supplied as an aqueous solution, and Polymaleic Acid HPMA 50% Solution is commonly produced by hydrolysis of polymaleic anhydride followed by neutralization adjustment as needed.
Polymaleic Acid HPMA 50% Solution works primarily through threshold inhibition, and Polymaleic Acid HPMA 50% Solution interferes with nucleation and crystal growth of sparingly soluble salts to reduce scale deposition.
Polymaleic Acid HPMA 50% Solution disperses suspended solids by providing anionic charge and steric stabilization, and this dispersion helps prevent agglomeration and deposition of iron, clay, and silt particles.

Polymaleic Acid HPMA 50% Solution is effective over a broad pH range, and Polymaleic Acid HPMA 50% Solution performance is typically strongest in alkaline conditions where carbonate scaling risk is high.
Polymaleic Acid HPMA 50% Solution can be used alone or blended with phosphonates, polyacrylates, or copolymers to broaden scale control performance across mixed salt conditions.
Polymaleic Acid HPMA 50% Solution dosage is typically low, but proper monitoring of hardness, alkalinity, cycles of concentration, and saturation indices is required for reliable program performance.

Polymaleic Acid HPMA 50% Solution is usually supplied near 50% active solids, and viscosity increases at lower temperature, so gentle warming may improve pumping and dosing.
Polymaleic Acid HPMA 50% Solution is acidic and can irritate skin and eyes, so appropriate PPE and safe handling practices are required in industrial use.
Polymaleic Acid HPMA 50% Solution should be stored in compatible plastic or lined containers, and Polymaleic Acid HPMA 50% Solution should be protected from freezing and excessive heat to maintain stable quality.

Polymaleic Acid HPMA 50% Solution is typically compatible with many corrosion inhibitors, but compatibility should be verified for zinc-containing or cationic programs because anionic polymers can interact with multivalent ions.
Polymaleic Acid HPMA 50% Solution can contribute to foaming in some circulation systems, so antifoam selection may be required in high-turbulence applications.
Polymaleic Acid HPMA 50% Solution should be applied using calibrated dosing equipment to ensure consistent control and minimize overfeed.

Polymaleic Acid HPMA 50% Solution works by threshold inhibition, crystal distortion, and dispersion of precipitating salts.
Polymaleic Acid HPMA 50% Solution can reduce deposition of calcium carbonate, calcium phosphate, and other hardness scales depending on conditions.
Polymaleic Acid HPMA 50% Solution performance depends on water chemistry, temperature, pH, and dosage strategy.

Polymaleic Acid HPMA 50% Solution is typically a clear to slightly yellow liquid depending on grade and storage history.
Polymaleic Acid HPMA 50% Solution is water soluble and designed to distribute rapidly in circulating systems.
Polymaleic Acid HPMA 50% Solution is often compatible with many corrosion inhibitors and other antiscalants in blended programs.

Polymaleic Acid HPMA 50% Solution can help keep iron oxides, silt, and other suspended solids dispersed in some systems.
Polymaleic Acid HPMA 50% Solution helps reduce fouling layers that can accelerate under-deposit corrosion in poorly controlled systems.
Polymaleic Acid HPMA 50% Solution is selected for low dosage effectiveness in many industrial water applications.

Polymaleic Acid HPMA 50% Solution may contain stabilizers or preservatives depending on supplier and specification.
Polymaleic Acid HPMA 50% Solution typically has an acidic pH because of carboxylic acid functionality.
Polymaleic Acid HPMA 50% Solution can be neutralized partially in formulation when specific pH targets are required.

Polymaleic Acid HPMA 50% Solution should be stored in tightly closed containers to prevent contamination and evaporation losses.
Polymaleic Acid HPMA 50% Solution should be protected from freezing and excessive heat to maintain handling properties.
Polymaleic Acid HPMA 50% Solution should be kept away from incompatible strong oxidizers and strong bases unless controlled.

Polymaleic Acid HPMA 50% Solution is commonly dosed via metering pumps to maintain steady treatment levels.
Polymaleic Acid HPMA 50% Solution is typically monitored through system performance indicators such as scaling index and deposit control results.
Polymaleic Acid HPMA 50% Solution is used in both once-through and recirculating water systems when scaling risk exists.

Polymaleic Acid HPMA 50% Solution does not provide hardness removal and instead helps prevent hardness from forming adherent scale.
Polymaleic Acid HPMA 50% Solution is valued for its ability to control deposition without significantly increasing conductivity.
Polymaleic Acid HPMA 50% Solution is widely used because it balances cost, effectiveness, and formulation flexibility.

Polymaleic Acid HPMA 50% Solution should be handled with appropriate industrial hygiene practices because it is an acidic polymer solution.
Polymaleic Acid HPMA 50% Solution is typically specified by active content, molecular weight range, and performance testing requirements.
Polymaleic Acid HPMA 50% Solution is considered a versatile dispersant and antiscalant for many industrial water treatment programs.
Polymaleic Acid HPMA 50% Solution can support cleaner equipment surfaces which can reduce energy consumption in heat-transfer operations.

PROPERTIES

Common Name: Polymaleic Acid HPMA 50% Solution
Chemical Type: Polycarboxylate polymer; antiscalant; dispersant; threshold inhibitor
Active Content: ~50% (typical)
Appearance: Clear to slightly hazy colorless to pale yellow liquid
Odor: Mild characteristic odor
pH (as supplied): Acidic (typical; grade dependent)
Solubility: Miscible with water
Ionic Character: Anionic
Molecular Weight: Low molecular weight polymer (grade dependent)
Viscosity: Moderate to high; temperature dependent
Density: ~1.20–1.30 g/cm³ (typical; grade dependent)
Stability: Stable under normal storage; protect from freezing and extreme heat
Compatibility: Generally compatible with common water treatment chemicals; verify with cationic and zinc programs
Storage Temperature: 5–35°C, protect from freezing, tightly closed
Shelf Life: Typically 12–24 months in original sealed packaging (supplier dependent)

FIRST AID

Inhalation:
Move to fresh air if mists are inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing aerosols during spraying and high-pressure dosing.

Skin Contact:
Remove contaminated clothing and rinse skin with plenty of water.
Wash with soap and water after thorough rinsing.
Seek medical advice if irritation persists or if redness develops.

Eye Contact:
Rinse cautiously with water for several minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation persists, and seek urgent care for significant exposure.

Ingestion:
Rinse mouth with water and do not induce vomiting.
Give water to drink if the person is conscious and not convulsing.
Seek medical attention if a significant amount is swallowed.

Note to Physicians:
Treat symptomatically.
No specific antidote is required.
Provide supportive care as needed.

HANDLING AND STORAGE

Handling:
Use appropriate PPE including chemical-resistant gloves and safety glasses.
Avoid splashing into eyes and avoid prolonged skin contact.
Use dedicated dosing equipment and avoid contamination of storage tanks.
Avoid contact with skin and eyes.
The product is acidic (pH 1-2); personal protective equipment (gloves, goggles) is required

Ventilation:
Use general ventilation for normal handling.
Use local exhaust if spraying or handling creates mists.
Avoid aerosol formation in enclosed spaces without adequate airflow.

Storage:
Store in tightly closed, compatible plastic or lined containers in a cool, dry place.
Protect from freezing because freezing can cause phase separation and viscosity changes.
Keep away from strong oxidizers and incompatible cationic materials.

Spill and Leak Procedures:
Contain spill and absorb with inert material.
Wash down residue with water and remove slick films from floors to prevent slip hazards.
Dispose of waste according to local regulations and facility procedures.

Handling Precautions:
Control dosage and monitor water chemistry because Polymaleic Acid HPMA 50% Solution performance depends on hardness, alkalinity, temperature, and cycles of concentration.
Verify compatibility when blending with other inhibitors and biocides because anionic polymers can interact with certain cationic products.
Rotate stock using FIFO practices and maintain recommended storage conditions to preserve consistent product quality.