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CAS Number: 25249-16-5
MDL number: MFCD00084374
PubChem Substance ID:24898472

HEMA  is the organic compound with the chemical formula H2CdC(CH3)CO2CH2CH2OH. 
HEMA is a colorless viscous liquid that readily polymerizes. 
HEMA is a monomer that is used to make various polymers.

2-Hydroxyethyl Methacrylate  is an ester of Methacrylic acid and is used as a raw material component in the synthesis of polymers. 
2-Hydroxyethyl Methacrylate forms a homopolymer and copolymers. 
Copolymers of 2-Hydroxyethyl Methacrylate can be prepared with (meth)acrylic acid and its salts, amides, and esters, as well as (meth)acrylates, acrylonitrile, maleic acid esters, vinyl acetate, vinyl chloride, vinylidene chloride, styrene, butadiene, and other monomers.
2-Hydroxyethyl Methacrylate, easily entering into the reaction of accession with a wide range of organic and inorganic substances, is used for the synthesis of organic low molecular weight substances.
HEMA is the monomer that is used to make the polymer polyhydroxyethylmethacrylate. 
HEMA is hydrophobic; however, when the polymer is subjected to water it will swell due to the molecule’s hydrophilic pendant group. 
Depending on the physical and chemical structure of the polymer, it is capable of absorbing from 10 to 600% water relative to the dry weight. 
Because of this property, iHEMA was one of the first materials to be successfully used in the manufacture of flexible contact lenses.

2-Hydroxyethyl Methacrylate is a neutral hydrophilic monomer useful in UV curing polymer systems & durable high gloss coatings. 
Other industrial applications include nails, dental, hydrogels (such as contact lens), UV inks & adhesives. HEMA provides scratch, solvent & weather resistance, control of hydrophobicity &/or can introduce reactive sites.
A series of HEMA, copolymers were synthesized by an emulsion polymerization technique. Copolymer compositions were determined by FT-IR and 1H-NMR spectroscopy. 
HEMA was found that comonomer ratios used in the recipes were comparable within the actual copolymers. 
Glass transition temperatures (Tg) of PMMA-co-PHEMA copolymers were varied from 119 degrees C to 100 degrees C by increasing HEMA content. 
Thermogravimetric analysis showed that the copolymers were stable up to 330 degrees C. 
High intrinsic viscosity values of copolymer resulted in ductile solution-cast films. 
The hydrophilicity of the films was analyzed by water uptake measurements.

Applications areas HEMA
2-Hydroxyethyl Methacrylate is used in the preparation of solid polymers, acrylic dispersions, and polymer solutions, which are used in various industries.
HEMA is applied in the production of:
Coating Resins
Automotive coatings
Architectural coatings
Paper coatings
Industrial coatings
Hygiene products
Adhesives & Sealants
Textile finishes
Printing inks
Contact lens
Photosensitive materials
Additives for oil production and transportation

Applications of HEMA
Contact lenses
In 1960, O. Wichterl described its use in synthesis of hydrophilic crosslinked networks, and these results had great importance for manufacture of soft contact lenses.
HEMA  is hydrophilic: HEMA is capable of absorbing from 10 to 600% water relative to the dry weight. 
Because of this property, HEMA was one of the first materials to be used in the manufacture of soft contact lenses.

Use of HEMA in 3D printing
HEMA lends itself well to applications in 3D printing as HEMA cures quickly at room temperature when exposed to UV light in the presence of photoinitiators. 
HEMA may be used as a monomeric matrix in which 40nm silica particles are suspended for 3D glass printing. 
When combined with a suitable blowing agent such as BOC anhydride HEMA forms a foaming resin which expands when heated.

Other uses 
In electron microscopy, later in light microscopy, hydroxyethylmethacrylate serves as an embedding medium.
When treated with polyisocyanates, HEMA makes a crosslinked polymer, an acrylic resin, that is a useful component in some paints.

HEMA is often used to increase the hydrophobicity or surface adhesion of polymers and polymer-based materials such as specialty coatings, resins, adhesives, printing inks, and acrylic plastics. 
As a co-monomer with other acrylic ester monomers, HEMA can be used to control hydrophobicity or introduce reactive sites.
In biomedical applications, the monomer is the basis for many hydrogel products such as soft contact lenses, polymer binders for controlled drug release, absorbents for body fluids, and for lubricious coatings. The 2-HEMA polymer is used in certain contact lenses where it has the additional advantage of being rigid and easy to shape with grinding tools when it is dry and then becomes flexible when HEMA absorbs water.

2-Hydroxyethyl Methacrylate is an ester of Methacrylic acid and is used as a raw material component in the synthesis of polymers. 
2-Hydroxyethyl Methacrylate forms a homopolymer and copolymers. 
Copolymers of 2-Hydroxyethyl Methacrylate  can be prepared with (meth)acrylic acid and its salts, amides, and esters, as well as (meth)acrylates, acrylonitrile, maleic acid esters, vinyl acetate, vinyl chloride, vinylidene chloride, styrene, butadiene, and other monomers.
2-Hydroxyethyl Methacrylate, easily entering into the reaction of accession with a wide range of organic and inorganic substances, is used for the synthesis of organic low molecular weight substances.

Features & Benefits OF HEMA:
Chemical resistance
Hydraulic stability
Impact resistance

Synthesis of HEMA
HEMA was first synthesized around 1925. 
Common methods of synthesis are:
reaction of methacrylic acid with ethylene oxide;
esterification of methacrylic acid with a large excess of ethylene glycol.
Both these methods give also some amount of ethylene dimethacrylate. 
During polymerization of hydroxyethylmethacrylate, HEMA works as crosslinking agent.

What is 2-Hydroxyethyl Methacrylate?
2-hydroxyethyl methacrylate (HEMA) is a commercially important and widely used monomer. 
HEMA is commonly prepared in a one-step reaction from methyl methacrylate or methacrylic acid. Specifically, HEMA can be synthesized by the following two methods: i. the first method involved the transesterification of ethylene glycol1; ii. the second is the reaction between ethylene oxide and methacrylic acid. 
Several procedures were developed in order to remove the impurities in the production of HEMA, such as soaking, extraction and ion-exchange.

Properties of HEMA
Hydroxyethylmethacrylate is completely miscible with water and ethanol, but its polymer is practically insoluble in common solvents. 
HEMA's viscosity is 0.0701 Pa⋅s at 20°C and 0.005 Pa⋅s at 30°C. 
During polymerization, it shrinks by approximately 6%

Features & Benefits:
Chemical resistance
Hydraulic stability
Impact resistance

Applications areas:
2-Hydroxyethyl Methacrylate is used in the preparation of solid polymers, acrylic dispersions, and polymer solutions, which are used in various industries.
HEMA is applied in the production of:
Coating Resins
Automotive coatings
Architectural coatings
Paper coatings
Industrial coatings
Hygiene products
Adhesives & Sealants
Textile finishes
Printing inks
Contact lens
Photosensitive materials
Additives for oil production and transportation

Chemical Properties of HEMA:
Purity: min. 98.0 %
Acid Value: max. 1.0 %
Water content: max. 0.3 %
Color APHA: max. 30

Physical Properties of HEMA
Appearance: colorless
Physical form: Liquid
Odor: Aromatic
Molecular weight: 130.14 g/mol
Polymer Tg: 
Tg 25 °C
Tg- 6 °C
Density: 1.073 g/mL at 25°C
Boiling Point: 211 °C
Freezing Point: - 12 °C
Flash point: 96 °C
Melting Point: - 60 °C
Viscosity: 6.8 (mPa.s) at 20 °C
Vapor Point: 0.065 hPa
pH: 4 (500 g/l in water)

Storage & Handling of HEMA
To prevent polymerization, 2-Hydroxyethyl Methacrylate should always be stored in air, and never under inert gases. 
For the stabilizer to work effectively, oxygen is required. 
HEMA must contain a stabilizer. Storage temperature should not exceed 35 °C. 
Under these conditions, the storage stability of one year can be expected. To minimize the likelihood of congestion, the storage procedure should strictly follow the principle of “first come, first come”. 
For a long shelf life of more than 4 weeks, it is advisable to replenish the oxygen content. 
Over time, the content of ethylene glycol diacrylate slowly increases. 
If HEMA is relevant to your process, 2-HEMA should be used within 12 months of receipt. The preferred material for tanks and pipes is stainless steel. 
Carbon steel is also used, although rust formation may occur, which will lead to a problem with product quality (color). 
Iron (III) -ion has been shown to be a weak initiator of polymerization. 
If carbon steel is to be used, special treatment should be used to prepare the tank for use. 
Storage tanks, pumps, and pipes must be earthed.

Safety of HEMA
2-Hydroxyethyl Methacrylate  is a combustible substance. 
At the temperatures above 97 °C, HEMA can form explosive mixtures of vapor with air. 
HEMA is irritating to the eyes, skin and respiratory tract. 
If this fluid is swallowed, aspiration into the lungs can lead to chemical pneumonitis. The flash-point is 97 °C. 
When working with 2-HEMA, sanitary rules for organizing technological processes and hygienic requirements for production equipment must be strictly observed. 
All types of work with 2-Hydroxyethyl Methacrylate should be carried out in rooms equipped with general supply and exhaust ventilation. 
HEMA is not allowed to carry out work in these rooms using an open fire. 
Those working with 2-HEMA must be provided with special clothing and personal protective equipment. 
In case of fire, it is necessary to use fire extinguishers OP-5, OVP-100 koshma, sand, asbestos cloth. 
Spread on solid soil 2-Hydroxyethyl Methacrylate should be covered with sand.

Identifiers of HEMA
CAS Number: 868-77-9 c
Beilstein Reference: 1071583
ChemSpider: 12791 c
ECHA InfoCard: 100.011.621 
EC Number: 212-782-2
Gmelin Reference: 936557
KEGG: C14530 c
PubChem CID: 13360
RTECS number: OZ4725000
UNII: 6E1I4IV47V check
CompTox Dashboard (EPA)    : DTXSID7022128

HEMA is a clear, colourless liquid with a characteristic odour. 
HEMA is an ester of methacrylic acid. It easily dissolves in water, relatively low volatility, non-toxic and non-yellowing.
HEMA copolymerizes readily with a wide variety of monomers, and the added hydroxyl groups improve adhesion to surfaces, incorporate cross-linking sites, and impart corrosion, fogging, and abrasion resistance, as well as contribute to low odour, colour, and volatility.
HEMA is used in the manufacture of acrylic polymers for adhesives, printing inks, coatings and metal applications. 
HEMA is also widely used as reactive diluent and alternative to styrene in unsatured polyester (UPR).

Shelf Life of HEMA
Under proper storage conditions, the shelf life is 12 months.

Computed Propertiesof HEMA 
Molecular Weight: 130.14    
XLogP3: 0.5    
Hydrogen Bond Donor Count: 1    
Hydrogen Bond Acceptor Count: 3    
Rotatable Bond Count: 4    
Exact Mass: 130.062994177    
Monoisotopic Mass: 130.062994177    
Topological Polar Surface Area: 46.5 Ų    
Heavy Atom Count: 9    
Formal Charge: 0    
Complexity: 118    
Isotope Atom Count: 0    
Defined Atom Stereocenter Count: 0    
Undefined Atom Stereocenter Count: 0    
Defined Bond Stereocenter Count: 0    
Undefined Bond Stereocenter Count: 0    
Covalently-Bonded Unit Count: 1    
Compound Is Canonicalized: Yes    

Chemical formula: C6H10O3
Molar mass: 130.143 g·mol−1
Appearance: Colourless liquid
Density: 1.07 g/cm3
Melting point: −99 °C (−146 °F; 174 K)
Boiling point: 213 °C (415 °F; 486 K)
Solubility in water: miscible
log P: 0.50
Vapor pressure: 0.08 hPa

Occupational safety and health (OHS/OSH):
Main hazards: Eye irritation
GHS labelling:
GHS07: Exclamation mark
Signal word: Warning
Hazard statements: H315, H317, H319
Precautionary statements: P261, P264, P272, P280, P302+P352, P305+P351+P338, P321, P332+P313, P333+P313, P337+P313, P362, P363, P501

Melting Point: -12ºC
Boiling Point: 174.909ºC at 760 mmHg
Flash Point: 64.043ºC
Molecular Formula: C6H10O3
Molecular Weight: 130.14200
Density: 1.073

Molecular Formula[CH2C(CH3)(CO2CH2CH2OH)-]
Molecular Weight: ~200,000
Density: 1.15
Appearance: powder
Hazard Statement: sHarmless-use normal precautions
Alpha Sort: Polyhydroxyethyl methacrylate
Refractive Index: n20/D 1.512

Properties of HEMA
Molecular Weight: 130
Appearance: Colorless transparent liquid
Odor: Aromatic odor
Refractive Index (25℃): 1.451
Boiling Point (℃ 760mmHg): 205
Freezing Point (℃ 760mmHg): -12
Flash Point (℃): 107 (Cleveland open-cup flash test)
Ignition Temperature (℃): No data
Flammability Limits/ Ranges (vol%): No data
Vapour Pressure: No data
Viscosity (CP 25℃): 6.1
Solubility: Readily soluble in water
Stability& Reactivity: Polymerize under sunlight and heat

Hazard Info of HEMA
H Statements:
H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
P Statements:
P261: Avoid breathing dust, fumes, gas, mist, vapours, spray. [As modified by IV ATP].
P264: Wash thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P333+P313: If skin irritation or a rash occurs:  Get medical advice/attention. 
P337+P313: If eye irritation persists:  Get medical advice/attention. 
P362+P364: Take off contaminated clothing. [As modified by IV ATP]. And wash it before reuse. [Added by IV ATP]. 
Hazard Info:
Causes skin irritation. May cause an allergic skin reaction. Causes serious eye irritation.

Physical Properties of HEMA:
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity: 1.07100 to 1.07500 @ 20.00 °C.
Pounds per Gallon - (est).: 8.922 to 8.956
Refractive Index: 1.44900 to 1.45400 @ 20.00 °C.
Boiling Point: 189.03 °C. @ 760.00 mm Hg (est)
Vapor Pressure:    0.200000 mmHg @ 25.00 °C. (est)
Flash Point: 207.00 °F. TCC ( 97.22 °C. )
logP (o/w): 0.470
Soluble in:
water, 1.00E+05 mg/L @ 25 °C (exp)
water, 1.179e+005 mg/L @ 25 °C (est)

Clear colorless, easily flowable liquid monomer with a pungent, sweet odor. 
HEMA comprises of a polymerizable methacrylate functional group in one end and a reactive hydroxyl group at the other end. 
HEMA easily dissolves in water and has relatively low volatility. It copolymerizes readily with a wide variety of monomers, and the added hydroxyl groups improve adhesion to surfaces, incorporate cross-link sites, and impart corrosion, fogging, and abrasion resistance as well as contribute to low odor, color, and volatility.

Benefits OF HEMA
Improved adhesion to substrates
Crosslinking sites, free hydroxy group reacts readily with isocyanate, anhydrides and  epoxy resins
Corrosion, fogging, and abrasion resistance, as well as contribute to low odor, color, and  volatility

2-Hydroxyethyl methacrylate (HEMA, CAS 868-77-9) is a clear, colorless liquid with a pungent, sweet odor. HEMA is produced for the use as monomer for production of polymers and as intermediate for synthesis of other methacrylate esters. 
The substance is manufactured in industrial settings in closed systems and used by industry for manufacture of polymers in closed and semi-closed systems. 
According to Gen Consulting Company, the 2-hydroxyethyl methacrylate market is expected to grow by USD 140.31 million during 2020-2026, progressing at a CAGR of 4.9% during the forecast period.

Where is (2-hydroxyethyl)-methacrylate found?
HEMA is an acrylate used in the medical and dental-related fields. 
HEMA is used in light curing polymer systems and high performance coatings for lasting high gloss against scratching, solvents, and weathering. 
HEMA is used in paint resins and emulsions, and binders for textiles and paper. 
HEMA is also used as an adhesion promoter for metal coatings.
HEMA is used in orthopedic surgery (fillings of bone defects, hip prostheses, osteotomy, in neurosurgery (vertebral fusion), in reconstructive surgery, and in dental surgery (and especially in periodontology and implantology).

CAS #: 868-77-9
EINECS #: 212-782-2
Adhesives & Sealants, Inks & Digital Inks, Plastic, Resin & Rubber, Polyurethane coatings, UV Monomers, Coatings, Paints, Polymers, Resins

MARKETS    CASE: Coatings, Adhesives, Sealants & Elastomers, Chemical & Materials Manufacturing

Chemical and Physical Properties of HEMA
Appearance: Colorless transparent liquid
Melting Point: -12 °C
Boiling Point: 67℃ 3.5 mm Hg(lit.), 95℃ (1.333kPa)
Density: 1.073 g/ml at 25 °C(lit.)
Solubility: Soluble in water, alcohol, ether and other organic solvents.

Application of 2-Hydroxyethyl methacrylate
HEMA is mainly used for the modification of resin and coating.
HEMA can be used for synthetic textile adhesives and medical polymer monomers.
Used for producing coatings, resin for automotive topcoat and primer.
In the plastics industry, HEMA can be used to produce acrylic acid esters containing active hydroxyl groups. 
In the coatings industry, HEMA is equipped with epoxy resin, diisocyanate, melamine formaldehyde resin and so on to prepare two component coatings. 
In the oil industry, HEMA is used as an additive for lubricating oil washing. 
HEMA is used as a chemical reagent in analytical chemistry.

CAS name:2-Hydroxyethyl methacrylate
CAS number: 868-77-9
Formula: C6H10O3
Product groups: Hydroxyesters
REACH registration status: registered
Molecular weight: 130.1 g/mol
Shelf life: In the unopened container standard stabilized MERACRYL® HEMA 98 has a shelf life of 6 months from date of delivery.
Main Applications    
Coatings, reactive resins

Description of HEMA
2-Hydroxyethyl Methacrylate  is a functional monomer that can copolymerize with other monomers to produce copolymers with a hydroxy group in the side chain

Appearance: Colorless liquid
The purity (GC) : %≥99.0
Ester content: %≥99.0
Water content:  %≤0.3
Free acid (as MAA):  %≤0.3
Chroma (APHA): ≤30
Inhibitor (MEHQ), PPM    200±20

2-Hydroxyethyl methacrylate/HEMA Usage:
Used for manufacturing thermosetting coatings, fiber primer, binder, photosensitive resin and medical polymer materials.

2-Hydroxypropyl methacrylate/HPMA Storage;
Stored in a dry and ventilated warehouse; keep away from sunshine; avoid fire; avoid moisture.

Molecular Formula: C6H10O3
Molecular Weight: 130.143
Refractive Index: 1.452
Color (APHA): <10
Inhibitor: BHT - 40-80 ppm
Specific Gravity: 1.070 g/mL

CAS: 868-77-9, 150-76-5
Molecular Formula: C6H10O3
Molecular Weight (g/mol): 130.14
MDL Number: MFCD00002863
PubChem CID: 13360
IUPAC Name: 2-hydroxyethyl 2-methylprop-2-enoateShow 

Description of HEMA
Poly(2-Hydroxyethyl methacrylate) (pHEMA) is biocompatible hydrophilic methacrylate polymer. 
In the dry state the material is hard and glassy, but in polar media the pendant hydroxyethyl group is able to extent outward and the material becomes soft and flexible. 
HEMA is soluble in common organic polar solvents such as lower alcohols, however the polymer will not dissolve in water without a co-solvent, but instead it will absorb water and swell.
Due to its good biocompatibility pHEMA has been extensively researched for biomedical applications such as hydrogel systems for drug delivery or scaffolds for tissue engineering. 
The most prominent example of a biomedical device based on pHEMA may be the very first modern soft contact lenses developed by Otto Wichterle around 1960. 
To this day, the monomeric unit (2-hydroxyethyl methacrylate) is still a key component of many soft contact lens systems.
HEMA may also find usage in coating applications to change the surface properties of a substrate. For example, pHEMA is commonly used to coat culture vessels in order to prevent cell adhesion or favor the formation of spheroidal cells.

Molecular weight: 130.1418
HS Code:2916140000
Completed REACH Registration
Purity: ≥97%
Free acid: ≤0.2%
Polymerization inhibitor: 200±20PPM
Color: ≤20#
Moisture: ≤0.2%

Properties of HEMA:
Colorless transparent liquid, boiling point 95℃ (1333.22Pa), soluble in water, alcohol, ether, ester and other solvents
This product is mainly used in producing thermosetting coating, fiber treating agent, adhesive, light-sensitive resin and medical polymer material, etc.
Transportation and notes: 
To protect from sunlight, it shall be covered with thermal insulation material in case of open storage;
Moisture can promote polymerization reaction, to protect from water;
Shelf life: half a year at normal temperature;
Collision shall be avoided when transporting, wash with clear water in case of leakage;
Corrosive to skin and mucosa, wash with clear water in contact with the product

APPEARANCE: Colorless Liquid
DENSITY: 1.073 g/cm3
COLOR: 30 max.
ASSAY: 97 % min.
INHIBITOR (MEHQ): < 250 ppm
ACIDITY: 0.5 % max.
WATER CONTENT: 0.3 % max.
BOILING POINT: 205 - 208 °C
Specialty Monomers, Methacrylates

General Information
Specifications & Properties
Safety & Regulations

Product Number    M0085
Purity / Analysis Method: >95.0%(GC)
Molecular Formula / Molecular Weight: C6H10O3 = 130.14  
Physical State (20 deg.C): Liquid
Condition to Avoid: Light Sensitive
CAS RN: 868-77-9
Reaxys Registry Number: 1071583
PubChem Substance ID: 87572197
SDBS (AIST Spectral DB)    10141
MDL Number: MFCD00002863

Hydroxyethyl methacrylate (HEMA) is an important vinyl monomer that can be easily polymerized. 
The pendant hydroxyl groups make the polymer fully water soluble, whereas lightly crosslinked HEMA forms hydrogels which absorb noticeable amounts of water.
HEMA is frequently copolymerized with other monomers to modify its properties. 
Due to its low toxicity and hydrophilic character, it has found numerous applications in biomedicine, including contact lenses, drug delivery systems, and dental adhesives. 
Another important application of HEMA are isocyanate-free vinyl ester urethane compositions for adhesives, sealants and coatings. 
The use of HEMA as a capping agent reduces the toxicity of the prepolymers and increases the low shear viscosity efficiency.

Personal protection: chemical protection suit and filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. 
Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent. 
Then store and dispose of according to local regulations.     

May be harmful if swallowed
Causes skin and eye irritation
May cause allergic skin reaction
May be harmful if swallowed and enters airways 
UN Classification

HEMA, in full poly-2-hydroxyethyl methacrylate, a soft, flexible, water-absorbing plastic used to make soft contact lenses. 
HEMA is a polymer of 2-hydroxyethyl methacrylate (HEMA), a clear liquid compound obtained by reacting methacrylic acid (CH2=C[CH3]CO2H) with ethylene oxide or propylene oxide. 
HEMA can be shaped into a contact lens by being cast into a small, concave, spinning mold. 
Under the influence of heat or light and free-radical initiators, the HEMA polymerizes, its molecules linking together to form long, multiple-unit chains. 
The HEMA repeating units of the polymer have the following chemical structure: polyhema, polymer, chemical compound

In most cases the polyHEMA chains are cross-linked into a complex three-dimensional network by another compound with which they are copolymerized. 
The cured plastic lens is hard but can absorb up to 60 percent of its weight in water, forming a soft hydrogel that has optical properties approaching those of hard contact lenses yet is less irritating to the cornea of the eye.

2-Hydroxy Ethyl Methacrylate
CAS #: 868-77-9

COLOR (APHA): 30 max
ACIDITY: 0.5% max
PURITY:97% min
INHIBITOR (MEHQ): 200ppm, 250ppm
SOLUBILITY: common org. solvs.
BOILING POINT: 205-208 c
DENSITY: 1.0644 (7760 f)

Used in various industries for applications such as thermo setting coating
Textile treatment agent
Paper processing material 
Polymer modifier etc

CLASS: Acrylates and Methacrylates 

Chemical Properties of HEMA
Formula: CH2=CH(CH3)CO2CH2CH2OH
Formula Weight: 130.14
Melting point: -12°
Boiling Point: 250°
Flash Point: 101°(213°F)
Density: 1.071
Refractive Index: 1.4530
Storage & Sensitivity: Keep Cold
Light Sensitive
Slightly miscible with hot water.

Applications of HEMA
2-Hydroxyethyl methacrylate is used in UV-curable inks and coatings. 
HEMA is also used in adhesives, artificial nails, dental materials and lacquers. 
In dentistry, it is one of the main volatile acrylates along with methyl methacrylate. 
Further, it is used as a monomer in the synthesis of polymers for dental prosthetics and for geotechnical grouting in construction work.

Properties of HEMA
Molecular Formula: C9H13N
Molar Mass: 135.21 g/mol
Density: 0.937
Boling Point: 211℃
Flash Point: 83℃
Refractive Index: 1.545

Specification of HEMA
Appearance: Clear liquid
Assay: ≥99% (GC)
Water: ≤0.3%
Inhibitor content(MEHQ,ppm): 200±20

Application of HEMA
In plastic industry, HEMA is used for the production of acrylic acid resin.
In coating industry, HEMA can be used for the production of double-component coating with epoxy resin, diisocyanate, melamino-formaldehyde resin. 
In oil industry, HEMA can be used as additive for cleaning of lubricant.
In electronic industry, used as dehydrating agent of electron microscope.
In textile industry, as the adhesive for the production of fabric. 
In analytical chemistry, as chemical reagent.
In addition, HEMA can also be used for fiber treatment agent, adhesive, photosensitive resin, medical macromolecular material,

Product Details
CAS Number: 868-77-9    
Appearance: clear liquid
Catalog Number    A904584    MDL Number    
Molecular Formula:C6H10O3    
Molecular Weight: 130.14
Boiling Point: 67 °C3.5 mm Hg(lit.)    
Melting Point: -12 °C
Flash Point: 207 °
Storage Condition: Store in a tightly closed container,in a cool and dry place
Signal Word: Warning    
UN Number    
Hazard Statements: Class    
Precautionary Statements: Packing Group

Store only if stabilized. 
Keep in the dark. 
Ventilation along the floor. 

Synonyms of HEMA
Glycol methacrylate
Hydroxyethyl methacrylate
Glycol monomethacrylate
Ethylene glycol methacrylate
2-hydroxyethyl 2-methylprop-2-enoate
Monomer MG-1
Ethylene glycol monomethacrylate
Methacrylic acid, 2-hydroxyethyl ester
beta-Hydroxyethyl methacrylate
2-Propenoic acid, 2-methyl-, 2-hydroxyethyl ester
NSC 24180
2-Hydroxyethyl 2-methylacrylate
polyethylene glycol methacrylate
.beta.-Hydroxyethyl methacrylate
1,2-Ethanediol mono(2-methyl)-2-propenoate
2-Hydroxyethyl methacrylate (HEMA)
Methacrylic Acid 2-Hydroxyethyl Ester
methacryloyloxyethyl alcohol
2-Hydroxyethyl Methacrylate (stabilized with MEHQ)
Bisomer HEMA
Poly(oxy-1,2-ethanediyl), alpha-(2-methyl-1-oxo-2-propen-1-yl)-omega-hydroxy-, homopolymer
2-Hydroxyethyl methacrylate,ophthalmic grade
CCRIS 6879
Ethylene glycol, monomethacrylate
HSDB 5442
EINECS 212-782-2
BRN 1071583
Monomethacrylic ether of ethylene glycol
PEG-5 methacrylate
hydroxyehtyl methacrylate
hydroxylethyl methacrylate
2-hydroxyetyl methacrylate
Epitope ID:117123
EC 212-782-2
2-hydroxylethyl methacrylate
2-hydroxy ethyl methacrylate
2-methacryloyloxyethyl alcohol
4-02-00-01530 (Beilstein Handbook Reference)
ethyleneglycol monomethacrylate
Methacrylic acid 2-hydroxyethyl
poly(ethylene glycol methacrylate)
2-Hydroxyethyl methacrylate, 98%
2-Hydroxyethyl 2-methylacrylate #
poly(ethylene glycol monomethacrylate)
Polyethylene glycol 400 monomethacrylate
2-Hydroxyethyl methacrylate,low acid grade
1,2-Ethanediol, mono(2-methyl)-2-propenyl
2-Hydroxyethyl methacrylate(hema),technical grade
2-Methyl-2-propenoic acid, 2-hydroxyethyl ester
Hydroxyethyl methacrylate(5.9cp(30 degrees c))
Hydroxyethyl methacrylate(>200cp(25 degrees c))
2-Hydroxyethyl Methacrylate, (stabilized with MEHQ)
2-Hydroxyethyl Methacrylate, Stabilized with 250 ppm MEHQ
2-Hydroxyethyl methacrylate, embedding medium (for microscopy)
2-Hydroxyethyl methacrylate, >=99%, contains <=50 ppm monomethyl ether hydroquinone as inhibitor
2-Hydroxyethyl methacrylate, contains <=250 ppm monomethyl ether hydroquinone as inhibitor, 97%

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