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