CAS 868-77-9 2-Hydroxyethyl Methacrylate HEMA Clear Colorless Liquid CAS NO.868-77-9

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CAS 868-77-9 Clear Colorless Liquid 2-Hydroxyethyl Methacrylate HEMA

2-Hydroxyethyl methacrylate (HEMA), with the CAS number 868-77-9, is a monomer that belongs to the family of methacrylate esters. It is a clear, colorless liquid with a characteristic odor. HEMA is widely used in various industries due to its unique properties and versatility.

 

 

Description:
2-Hydroxyethyl methacrylate is a monofunctional monomer that consists of a hydroxyethyl group (-CH2CH2OH) and a methacrylate ester group (-C(O)CH3). It is synthesized by the reaction of methacrylic acid with ethylene oxide. HEMA is miscible with water and many organic solvents.

 

Data Sheet:
Product: 2-Hydroxyethyl Methacrylate (HEMA)
CAS Number: 868-77-9
Appearance: Clear, colorless liquid
Molecular Formula: C6H10O3
Molecular Weight: 130.14 g/mol
Density: 1.11 g/cm³ at 20°C
Boiling Point: 83-84°C at 0.3 mmHg
Flash Point: 105°C (closed cup)
Refractive Index: 1.448-1.452 at 20°C
Solubility: Miscible with water, ethanol, and many organic solvents

 

Features:

1. Reactive Functionality: HEMA contains a hydroxyl group that makes it highly reactive. This reactivity allows it to easily undergo polymerization reactions, leading to the formation of polymers with desirable properties.
2. Hydrophilic Nature: The presence of the hydroxyl group in HEMA provides it with hydrophilic characteristics, making it compatible with water-based systems and formulations.
3. Transparency: HEMA imparts transparency to polymers and coatings, allowing it to be used in applications where optical clarity is required.
4. Low Viscosity: HEMA has a relatively low viscosity, which facilitates its incorporation into various formulations and enables easy handling and processing.
5. Adhesion Promotion: HEMA exhibits good adhesion properties and can improve the adhesion of coatings and adhesives to various substrates.

Applications:

1. Dental Materials: HEMA is a key component in dental materials, such as dental adhesives, restorative composites, and dental prosthetic materials. It improves the adhesion of dental restorations to tooth structures.
2. Coatings and Paints: HEMA is used in the formulation of coatings and paints, including water-based systems. It enhances the film-forming properties, adhesion, and flexibility of the coatings.
3. Adhesives and Sealants: HEMA is employed in the production of adhesives and sealants, providing improved bonding strength and flexibility.
4. Contact Lenses: HEMA is used in the manufacture of hydrogel contact lenses. It imparts water absorption and oxygen permeability properties to the lenses.
5. Polymer Synthesis: HEMA serves as a building block in the synthesis of various polymers, such as hydrogels, thermosetting resins, and water-soluble copolymers.

 

 

Packaging	1kg-15kg packing	2 PE bag inside + 1 foil bag outside in carton
	25kg-50kg packing	2 PE bag inside + 1 foil bag outside in drum
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Shipping	1-50kg	International Express	Fast and convenient	Door to Door
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