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Homopolymer maleic acid is a maleic acid homo polymer, with obvious threshold inhibition and crystal modification, and average molecular weight around 1000.
Homopolymer Maleic acid is a polycarboxylic acid type organic compound, which is resistant to high temperature and can chelate calcium, magnesium, iron, etc. in water.
Homopolymer Maleic acid has good thermal stability, use PH range, wide water hardness, is an excellent anti-limescale.
CAS Number: 26099-09-2
EC Number: 607-861-7
Molecular Formula: C4H4O4;HOOCCH=CHCOOH;C4H4O4
Molecular Weight: 116.07g/mol
Homopolymer maleic acid is the homopolymer of Maleic acid.
Homopolymer maleic acid is a very efficient calcium carbonate antiscalant showing excellent performance in high temperature as well as high alkaline cooling water systems.
Homopolymer maleic acid is stable in presence of chlorine or other oxidizing biocides.
Due to Homopolymer maleic acid good scale inhibition and high temperature tolerance properties, Homopolymer maleic acid is used in water desalination plants.
Homopolymer maleic acid does also perform as corrosion inhibitor when being combined with zinc salts.
Homopolymer maleic acid is a maleic acid homo polymer, with obvious threshold inhibition and crystal modification, and average molecular weight around 1000.
Homopolymer maleic acid 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.
Homopolymer maleic acid 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.
Homopolymer maleic acid has better performance when combined with phosphonates than when phosphonates used alone.
Homopolymer maleic acid is compatible with quaternary ammonium compounds, while not affected by chlorine or other oxidizing biocides under normal use conditions.
Homopolymer maleic acid is a polycarboxylic acid type organic compound, which is resistant to high temperature and can chelate calcium, magnesium, iron, etc. in water.
Good thermal stability, use PH range, wide water hardness, is an excellent scale inhibitor.
Homopolymer maleic acid, as a low-cost and excellent green water treatment agent, has become an important member of high-efficiency water-soluble scale inhibitor and dispersant.
Especially under harsh environmental conditions such as high temperature, high pH value, high alkalinity, high hardness, etc., Homopolymer maleic acid has a significant scale inhibition effect on calcium carbonate, calcium sulfate, etc., which is not general polypropylene acids and other organic copolymerization The dispersant can reach.
At the same time, Homopolymer maleic acid has low toxicity, no carcinogenic and teratogenic effects, and is often used as a water treatment agent for circulating cooling water, low-pressure boiler water, and anti-scaling treatment for oilfield water injection, crude oil dehydration and other systems.
Homopolymer maleic acid is a polyelectrolyte, also known as anti-scale agent H-1, Homopolymer maleic acid, which is produced by maleic anhydride Polyhydrolysis or hydrolysis polymerization.
Homopolymer maleic acid is a brown-red viscous liquid at room temperature.
Easily soluble in water, each carbon atom on the polymer chain has a high potential charge.
Therefore, Homopolymer maleic acid polyelectrolyte properties are different from polyacrylic acid or polymethacrylic acid.
When dropping with LiOH, NaOH, KOH or (CH3)4NOH, only half of the carboxyl group of the total acid is neutralized, and the properties are different from polyacrylic acid or polymethacrylic acid.
When LiOH, NaOH, KOH or (CH3)4NOH curve is used, there is only one jump at the half-sum point.
Therefore, in terms of potentiometric titration, Homopolymer maleic acid is often regarded as a unit acid.
Homopolymer maleic acid and maleic acid-acrylic acid copolymers can be used to treat calcium carbonate and calcium phosphate powders.
The surface modification of calcium carbonate can improve the stability of calcium carbonate in organic or inorganic phase (system), improve the dispersibility of these powders in solution, and prevent the agglomeration of particles.
Homopolymer maleic acid is prepared by polymerization and hydrolysis of maleic anhydride under the action of a catalyst.
Homopolymer maleic acid is mainly used for scale and corrosion inhibition of steam locomotive boilers, industrial low-pressure boilers, internal combustion engine cooling water systems, seawater desalination, seawater potassium extraction, heat exchange systems, oil field oil pipelines and tank return systems.
Homopolymer maleic acid is a drug that inhibits the activity of maleate, hydrogen tartrate, and benzalkonium chloride.
Homopolymer maleic acid is used as an active inhibitor in the treatment of infectious diseases caused by bacteria.
Homopolymer maleic acid has been shown to be effective against both Gram-positive and Gram-negative bacteria.
The long-term toxicity studies on rats have shown no evidence of carcinogenicity or other adverse effects.
Homopolymer maleic acid has also been shown to bind to the rate constant for polymerase chain reactions, which may result in inhibition of bacterial growth.
Homopolymer maleic acid is the homopolymer of maleic acid.
Homopolymer maleic acid is very stable in presence of chlorine and other oxidizing biocides.
Homopolymer maleic acid has good scale inhibition and high temperature resistance properties.
Therefore, Homopolymer maleic acid can be used in the water desalination plants.
Homopolymer maleic acid is also an excellent calcium carbonate antiscalant upon high temperature and in the high alkaline cooling water systems.
In addition, Homopolymer maleic acid can be used in combination with zinc salts as a corrosion inhibitor.
Homopolymer maleic acid can also be used as concrete additive and for crude oil evaporation.
Homopolymer maleic acid can be manufactured through the polymerization of maleic anhydride I an aromatic hydrocarbon upon 60° to 200° C.
A relatively homogenous and easily synthesized polymer, Homopolymer maleic acid, was studied to ascertain Homopolymer maleic acid suitability as a model compound for humic substances.
Physical and chemical properties of Homopolymer maleic acid were measured by UV/VIS, Fourier-transform infrared, and 13C NMR spectroscopy, high pressure size exclusion chromatography, and elemental analyses to elucidate the structural characteristics of Homopolymer maleic acid and aquatic humic substances.
In terms of size, polydispersity, elemental composition, and infrared spectra, Homopolymer maleic acid most closely resembles fulvic acids derived primarily from terrestrial sources.
Molar absorptivity (measured at 280 nm) and 13C NMR spectroscopic data, however, show that Homopolymer maleic acid exhibits significantly less aromaticity than fulvic materials of similar size.
In general, terrestrially derived aquatic fulvic acids possess larger percentages of aromatic carbons than either Homopolymer maleic acid or the lacustrine and subsurface fulvic acids.
13C NMR spectra also show that aliphatic II and acetal carbons, present in several aquatic fulvic acids, are absent in Homopolymer maleic acid.
Furthermore, the carboxyl carbon content of Homopolymer maleic acid is significantly higher than that of all the humic materials used in this study.
Based on these results, Homopolymer maleic acid does not resemble a unique humic substance, but rather appears to possess chemical properties common to humic materials from diverse sources.
Applications of Homopolymer maleic acid:
Cooling water systems / industrial water treatment
Concrete additive
Water desalination
Crude oil evaporation
Uses of Homopolymer maleic acid:
Homopolymer maleic acid has high chemical stability and temperature resistance, and has obvious solubility limit effect when pH value is 8.3.
Homopolymer maleic acid can chelate calcium and magnesium plasma in water and has lattice distortion ability, which can improve the fluidity of sludge.
Homopolymer maleic acid is especially suitable for scale inhibition in high-temperature water systems such as boiler water.
Homopolymer maleic acid can be used as oil field water pipeline, circulating cooling water system and flash seawater desalination and other sediment inhibitors, scale inhibitors, etc., can also be used as a basic industrial detergent
Homopolymer maleic acid is efficient scale inhibitor.
Homopolymer maleic acid is mainly used in low-pressure boilers, industrial circulating cooling water systems, oil pipeline, crude oil dehydration and flash seawater desalination and other aspects of the scale inhibitor, and can be used as the main component of advanced cleaning agents, but also can be used as textile rinsing agent, reduces the ash content of textiles.
Homopolymer maleic acid still has good scale inhibition and dispersion effect on carbonate below 300 ℃, and the scale inhibition time can reach COOH.
Due to the excellent scale inhibition performance and high temperature resistance of Homopolymer maleic acid, Homopolymer maleic acid is widely used in the flash unit of seawater desalination and in the low pressure boiler, steam locomotive, crude oil dehydration, water transfer pipeline and industrial circulating cooling water.
In addition, Homopolymer maleic acid has a certain corrosion inhibition effect, and the effect of compound with zinc salt is better, which can effectively prevent the corrosion of carbon steel.
Homopolymer maleic acid is usually (1~15)× 10-6 and organic phosphate compound, for circulating cooling water, oil field water injection, crude oil dehydration treatment and low pressure boiler furnace treatment, Homopolymer maleic acid has a good effect of inhibiting scale formation and stripping old scale, and the scale inhibition rate can reach 98%.
Homopolymer maleic acid has better performance when combined with phosphonates than when phosphonates used alone.
Homopolymer maleic acid is compatible with quaternary ammonium compounds, while not affected by chlorine or other oxidizing biocides under normal use conditions.
Homopolymer maleic acid cocoa is used for scale inhibition of industrial circulating cooling water, oil field water pipelines and boiler water.
Desalination and scale prevention of seawater by flash evaporation.
And used as an ingredient in advanced cleaning agents.
The general dosage is 1-5PPM.
Homopolymer maleic acid can be used for oil field water pipelines, steam locomotive boilers, medium and low pressure boilers, seawater desalination, circulating cooling water, and scale inhibitor and dispersant.
Homopolymer maleic acid can also be used as a textile cleaning agent.
General dosage 2 × 10-6~10-5.
Homopolymer maleic acid is used as scale inhibitor and corrosion inhibitor in steam locomotive, industrial boiler water, cold water, and oil field water injection treatment.
Homopolymer maleic acid is a high-efficiency scale inhibitor, mainly used in low-pressure boilers, industrial circulating cooling water systems, oil field water pipelines, crude oil dehydration, etc.
Homopolymer maleic acid has high chemical stability and temperature resistance, and has obvious pH value when 8.3.
The solubility limit effect can chelate with calcium and magnesium plasma in water and have lattice distortion ability, which can improve the fluidity of sludge.
Homopolymer maleic acid is especially suitable for scale inhibition of high warm water systems such as boiler water.
Homopolymer maleic acid can be used as a sediment inhibitor, scale inhibitor, etc. for oilfield water pipelines, circulating cooling water systems, and flash evaporation seawater desalination.
Homopolymer maleic acid can also be used as an alkaline industrial cleaner with.
Properties of Homopolymer maleic acid:
Homopolymer maleic acid is a solvent-based maleic acid hopolymer, with obvious threshold inhibition and crystal modification, and average molecular weight around 1000.
Homopolymer maleic acid 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.
Homopolymer maleic acid 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.
Nature of Homopolymer maleic acid:
Homopolymer maleic acid is transparent liquid.
Homopolymer maleic acid is soluble in water, chemical stability and high thermal stability, decomposition temperature of 330.
50% of the aqueous solution is light yellow viscous liquid, density is greater than or equal to 1.
2g/cm3,pH value is 1~2.
Homopolymer maleic acid is a low molecular weight polyelectrolyte, non-toxic, soluble in water, high chemical and thermal stability, decomposition temperature above 330 ℃.
Preparation Method of Homopolymer maleic acid:
The polymerization was initiated in the presence of benzoyl peroxide with maleic anhydride as a raw material and toluene as a solvent.
Synthesis Method of Homopolymer maleic acid:
Add a certain amount of maleic anhydride and water to a 1000m four-mouth flask equipped with thermometer, stirrer, reflux condenser and constant pressure drop funnel, and raise the temperature to 60 ℃.
After the maleic anhydride is completely dissolved, add an appropriate amount of catalyst and self-made auxiliary AXL, start the stirrer and raise the temperature to the set temperature at the same time, control a certain reaction temperature, and add the initiator within a certain period of time through a constant pressure drop funnel.
After dropping, continue the heat preservation reaction for 2h to obtain Homopolymer maleic acid products.
Production Method of Homopolymer maleic acid:
200 parts maleic anhydride, 80 parts water and one part catalyst are added into the kettle.
After heating and reflux, 100 parts of hydrogen peroxide are added dropwise at 100~120 ℃.
After the reaction, heat and reflux for 30 min to obtain a clear and transparent brown-yellow hydrolyzed product.
Using water as solvent and maleic acid rod as monomer in the presence of initiator for polymerization.
See hydrolyzed Homopolymer maleic acid rod for details.
Handling and storage of Homopolymer maleic acid:
Precautions for safe handling:
Ensure good ventilation of the work station. Avoid contact with skin and eyes.
Wear personal protective equipment.
Hygiene measures:
Do not eat, drink or smoke when using Homopolymer maleic acid.
Always wash hands after handling Homopolymer maleic acid.
Conditions for safe storage, including any incompatibilities:
Storage conditions:
Do not expose to temperatures exceeding 50 °C/ 122 °F.
Protect from sunlight.
Store in original container or corrosive resistant and/or lined container.
Store in corrosive resistant container with a resistant inner liner.
Keep only in original container.
Store in a well-ventilated place.
Keep cool.
Incompatible materials:
Metals.
Shelf Life of Homopolymer maleic acid:
Under proper storage conditions, the shelf life is 12 months
Stability and reactivity of Homopolymer maleic acid:
Reactivity:
Homopolymer maleic acid is non-reactive under normal conditions of use, storage and transport.
Chemical stability:
Stable under normal conditions.
Possibility of hazardous reactions:
No dangerous reactions known under normal conditions of use.
Conditions to avoid:
None under recommended storage and handling conditions.
Incompatible materials:
Strong bases.
Oxidizing agent.
May be corrosive to metals. metals.
Hazardous decomposition products:
Under normal conditions of storage and use, hazardous decomposition products should not be produced.
First Aid Measures of Homopolymer maleic acid:
After inhalation:
Remove person to fresh air and keep comfortable for breathing.
After skin contact:
Wash skin with plenty of water.
After eye contact:
Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do.
Continue rinsing.
If eye irritation persists:
Get medical advice/attention.
After ingestion:
Call a poison center/doctor/physician if you feel unwell.
Most important symptoms and effects (acute and delayed):
Symptoms/effects after eye contact:
Eye irritation.
Immediate medical attention and special treatment, if necessary:
Treat symptomatically.
Fire-fighting Measures of Homopolymer maleic acid:
Suitable extinguishing media:
Water spray.
Dry powder.
Foam.
Carbon dioxide.
Specific hazards arising from the chemical:
Reactivity:
Homopolymer maleic acid is non-reactive under normal conditions of use, storage and transport.
Special protective equipment and precautions for fire-fighters:
Protection during firefighting:
Do not attempt to take action without suitable protective equipment.
Self-contained breathing apparatus.
Complete protective clothing.
Accidental release measures of Homopolymer maleic acid:
Personal precautions, protective equipment and emergency procedures:
Emergency procedures:
Ventilate spillage area.
Avoid contact with skin and eyes.
Protective equipment:
Do not attempt to take action without suitable protective equipment.
Environmental precautions
Avoid release to the environment.
Methods and material for containment and cleaning up:
Methods for cleaning up:
Take up liquid spill into absorbent material.
Other information:
Dispose of materials or solid residues at an authorized site.
Identifiers of Homopolymer maleic acid:
CAS No.:26099-09-2
Chemical Name: Homopolymer maleic acid
CBNumber: CB5491823
Molecular Formula: C4H4O4
Molecular Weight: 116.07
MDL Number: MFCD00284278
Formula: (C4H4O4)n
CAS No.: 26099-09-2
EC No.: n/a
CAS No: [26099-09-2]
Product Code: FP45020
MDL No: MFCD00284278
Chemical Formula: (C4H4O4)n
Smiles: C(=CC(=O)O)C(=O)O
Density: 1.23 g/cm3
Flash Point: 100 °C
Storage: store at 10°C - 25°C, close container well
UN Number: UN3265
Pack Group: II
Class: 8
EC / List no.: 607-861-7
CAS no.: 26099-09-2
Properties of Homopolymer maleic acid:
Density: 1.18 (48% aq.)
Flash point: 95 °C
storage temp.: 2-8°C
Molecular Formula: C4H4O4;HOOCCH=CHCOOH;C4H4O4
Molecular Weight: 116.07g/mol
Rotatable Bond Count: 2
Exact Mass: 116.010959g/mol
Monoisotopic Mass: 116.010959g/mol
Heavy Atom Count: 8
Complexity: 119
Covalently-Bonded Unit Count: 1
Color/Form: Monoclinic prisms from water; White crystals from water, alcohol and benzene; Colorless crystals
Odor: Faint acidulous odor
Boiling Point: 275 °F at 760 mm Hg (decomposes) (NTP, 1992)
Molecular Formula: C4H4O4
Molar Mass: 116.07
Density: 1.18 (48% aq.)
Flash Point: 95 °C
Storage Condition: 2-8°C
Specifications of Homopolymer maleic acid:
Appearance: Amber liquid
Solid content %: 48-52
pH (as it): 2.0 max
Density (20℃, g/cm3 ): 1.16-1.22
Related Products of Homopolymer maleic acid:
Dimethyl 2-Hydroxyisophthalate
2,6-Dimethyl-4-hydroxypyridine
1-(1,1-Dimethylethoxy)-N,N,N',N'-tetramethyl-methanediamine
(contains Tris(dimethylamino) Methane and N,N- Dimethylformamide Di-tert-butyl Acetal) (Technical Grade)
(E)-6,6-Dimethylhept-2-en-4-yn-1-ol
Dimethyl Chlorothiophosphate
Names of Homopolymer maleic acid:
Regulatory process names:
2-Butenedioic acid (2Z)-, homopolymer
IUPAC names:
(2R,3R)-2,3-dimethylbutanedioic acid
2-Butenedioic acid (2Z)-, homopolymer
2‐Butenedioic acid (2Z)‐, homopolymer
ACIDO POLIMALEICO
Hydrolyzed Polymaleic Anhydride
POLY(MALEIC ACID)
Poly(maleic acid)
poly(maleic acid)
Polymaleic acid
Polymaleic acid
Polymaleic acid
Other names:
HPMA
Hydrolyzed Polymaleic Anhydride
Hydrolyzed Polymaleic Anhydride (HPMA)
MONOPOTASSIUM PHOSPHITE
Other identifier:
26099-09-2
Synonyms of Homopolymer maleic acid:
2-Butenedioic acid (2Z)-, homopolymer
2-Butenedioic acid (Z)-, homopolymer
Accent T 1107
Acumer 4200
Aron A 6510
Bel 200 premix
Belclene 200
Belclene 200LA
Belclene 710
Dequest P 9000
Dp 3328
Hpma
Hydrolized polymaleic anhydride
Hydrolysed Polymaleic Anhydride
Hydrolyzed Polymaleic Anhydride
Maleic acid homopolymer
Maleic acid polymer
Maleic acid, polymers
Nonpol PMA 50W
Nonpol PWA 50W
Polymaleic acid
PolymaleicacidAq
Sh 150
HPMA
Polymaleic acid
PolymaleicacidAq
Poly(maleic acid)
POLY(MALEIC ACID)
MALEIC ACID POLYMER
Maleic Acdi ( homopolymer )
Hydrolysed Polymaleic Anhydride
Hydrolized polymaleic anhydride
Hydrolyzed Polymaleic Anhydride
hydrolyzed polymaleic anhydride
(z)-2-butenedioic acid homopolymer
