HPMA

HPMA

Hydrolyzed Polymaleic Anhydride 

Antiscalant

Antiscalant for Calcium Carbonate Control in High LSI Conditions

EC / List no.: 607-861-7

CAS no.: 26099-09-2

Hydrolyzed Polymaleic Anhydride = HPMA = Polymaleic Acid = PMA = Aqueous Solution of Polymaleic Acid = Homopolymer of Maleic Acid  

Substance names and other identifiers

Regulatory process names: 2-Butenedioic acid (2Z)-, homopolymer

IUPAC names

(2R,3R)-2,3-dimethylbutanedioic acid

2-Butenedioic acid (2Z)-, homopolymer

ACIDO POLIMALEICO

Hydrolyzed Polymaleic Anhydride

Poly(maleic acid)

Polymaleic Acid

Homopolymer of Maleic Acid 

Polymaleic Acid (PMA)

Other names

HPMA

Hydrolyzed Polymaleic Anhydride

Hydrolyzed Polymaleic Anhydride (HPMA)

Homopolymer of Maleic Acid 

General Product Information

HPMA has been developed as a calcium carbonate inhibitor in industrial water systems and other related applications.

Description

HPMA is the most effective calcium carbonate antiscalant for high hardness, high alkalinity, and high temperature cooling water systems, in the industry.

Application

HPMA provides the formulator:

– Superior calcium carbonate scale inhibition in severe service conditions, where the LSI approaches 3.0

– Both threshold inhibition and crystal modification

– Better results for phosphonate based programs than when phosphonates used alone

– Easy on-site testing using Bel-Trak test kit

Benefits

HPMA is suitable for Scale control in sugar evaporators

HPMA is compatible with all organic cooling water programs

HPMA has excellent calcium carbonate crystal dictortion results in non-adherent crystals.

HPMA maintains clean heat exchangers even in high calcium waters.

HPMA can be used as a stand-alone calcium carbonate inhibitor or as a multifunctional formulation support agent in cooling water formulations and other related applications. 

Hydrolyzed Polymaleic Anhydride (HPMA) is FDA approved (173.310, 173.45) for sugar and beet processing.

Hydrolyzed Polymaleic Anhydride (HPMA) is Kosher certified.

Polymaleic Acid (PMA) = Hydrolyzed Polymaleic Anhydride (HPMA)

 

CAS No.  26099-09-2

Molecular Weight:  About 1000

Molecular Formula & Molecular Structure:

Properties:

HPMA is a solvent-based poly-maleic acid, with obvious threshold inhibition and crystal modification, and average molecular weight around 1000. 

HPMA is the superior calcium carbonate inhibitor in high hardness, high alkalinity, and high temperature severe water conditions and a multifunctional formulation support agent in industrial water systems and other related applications.

HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cooling water systems.

HPMA has better performance when combined with phosphonates than when phosphonates used alone. 

HPMA is compatible with organic phosphonic and quaternary ammonium compounds, while not affected by chlorine or other oxidizing biocides under normal use conditions.

HPMA has no toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330℃. 

HPMA has obvious threshold effect under high temperature (350℃) and high pH（8.3）level, suitable to be used in alkaline water system or built with agents. 

HPMA has good scale inhibition against carbonate and phosphate scales under temperature 300℃ with effective time as long as 100 hours. 

Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. 

In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. 

HPMA can also used as additives for cement.

Typical physical properties

Appearance : Clear amber liquid

Odours: light

Solids content: 47-53 % w/w

Specific gravity: 1.16-1.19

pH (undiluted): <2 Viscosity at 25°C: 12-30 cPs (10-25 cSt) Boiling point range: 100-102°C (212-214°F) Freeze point range: -5 to -12°C (23-10°F) Solubility in water: miscible  ethylene glycol: miscible  methanol: Miscible  50% caustic soda: Readily neutralised with the evolution of heat  steam volatility: does not steam distil pH limitations:  to avoid precipitation, formulate below pH 2.5 or above pH 8.0. At in use concentrations Belclene 200is stable at any pH. Thermal stability (TGA) Thermogravimetric analysis has shown that Belclene 200is stable up a temperature of 300°C (572°F). Chemical reactivity/compatibility Hydrolyzed Polymaleic Anhydride (HPMA)is not affected by chlorine or other oxidising biocides under normal use conditions.  Test for compatibility with long chain nitrogen compounds, aliphaticamine and quaternary ammonium compounds OTHER PRODUCTS THAT MIGHT BE OF INTEREST: Please check www.atamankimya.com for more products. Product Chemistry Usage Features Belclene 200 Maleic homopolymer (PMA) Excellent calcium carbonate control Number one antiscalant for severe conditions Belclene 283 Maleic terpolymer (MTP) Zinc & phosphonate enhancement & calcium carbonate scale Inhibition Cooling water and kraft pulp continuous digesters Belclene 400 Sulphonated phosphino polycarboxylic acid polymer (PCA) Phosphate scale inhibition & dispersion High performance silt dispersant Belclene 440 Phosphono polycarboxylic acid polymer (POCA) Polymeric scale & corrosion inhibition Multifunctional building block polymer Belclene 110 Carboxylic acid based polymer Calcium carbonate scale inhibition High performance polyacrylate replacement Belclene 627 Tetra phosphonate Scale & metal ion control Excellent calcium sulfate inhibitor Belclene 630 Penta phosphonate Scale & metal ion control Excellent metal ion sequestration properties Belclene 633 Penta phosphonate sodium salt Scale & metal ion control Excellent metal ion sequestration properties Belclene 635 Penta phosphonate sodium salt Scale & metal ion control Excellent metal ion sequestration properties Belclene 640 ATMP Calcium carbonate inhibition for scale & corrosion control Non-halogenated systems Belclene 650 PBTC Calcium carbonate scale inhibition Halogenated systems and highly alkaline waters Belclene 660 HEDP Calcium carbonate scale inhibition Moderately alkaline waters Belclene 800 Maleic homopolymer (PMA) Excellent calcium carbonate control Biodegradable and phosphorus free Belclene 810 PCA Calcium carbonate control Biodegradable and phosphorus free Belsperse 161 Phosphinocarboxylic acid polymer (PCA) Boiler sludge and iron dispersant FDA approved  Belsperse 164 Phosphinocarboxylic acid polymer (PCA) Boiler sludge and iron dispersant FDA approved  DOW Acumer 1000 Poly acrylic acid • DOW Acumer 2000 Carboxylate Sulphonate Copolymer • DOW Acumer 2100 Carboxylate/Sulfonate copolymer • DOW Acumer 3100 AA/AMPS non-ionic terpolymer • DOW Acumer 5000 Carboxylate/Sulphonate/maleic terpolymer • • DOW Acumer 9400 Acrylic Acid homopolymer • DOW Acusol 445 Acrylic acid homopolymer • DOW Acusol 445 N Sodum acrylate homopolymer • AkzoNobel Aquatreat AR 540 Carboxylate/Sulphonate/maleic terpolymer • • AkzoNobel Aquatreat AR 546 AA/AMPS copolymer • AkzoNobel Aquatreat AR 900 Sodium acrylate homopolymer • AkzoNobel Aquatreat AR 980 AA/MA copolymer • AkzoNobel Aquatreat Versa TL-4 Sulphonated styrene/maleic poly- mer • Belsperse 161 Phosphino Carboxylic Acid 50% • Hydrolyzed Polymaleic Anhydride (HPMA)Poly maleic acid (HPMA) • Belclene 283 AA/MA Copolymer (CPMA) • Belclene 400 Sulphonated phosphino carboxylic acid copolymer • Belclene 499 Carboxylate/sulphonate/maleic terpolymer • Buckman BSI 75 AA/acrylamide copolymer • Buckman BSI 82 AA/acrylamide copolymer • Buckman BSI 84 AA/acrylamide copolymer • Buckman BSI 88 AA/homopolymer • Buckman BSI 97 Poly maleic acid • DOW Optidose 4210 Poly maleic acid