Hydroxyethyl Methacrylate

Definition - What does Hydroxyethyl Methacrylate mean?

Hydroxyethyl methacrylate (HEMA) refers to a chemical substance that is a monomer hydroxyester compound used to desensitize dentin structures and make polymers. It is a clear, colorless liquid with a characteristic odor. These polymers are hydrophobic in nature, making them excellent for water-blocking corrosion prevention mechanisms.

Corrosionpedia explains Hydroxyethyl Methacrylate

Hydroxyethyl methacrylate (HEMA) is an ester of methacrylic acid with water soluble, low volatility and non-toxic properties.

Some key properties of HEMA:

Full name: 2-Hydroxyethyl methacrylate, 98%

Molecular formula: C6H10O3

CAS number: 868-77-9

Molecular weight: 130.14

Appearance: Colorless liquid

Infrared spectrum: Confirms to structure

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