Dimethyl terephthalate
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Dimethyl terephthalate | |
---|---|
IUPAC name | Dimethyl terephthalate |
Other names | Terephthalic acid methyl ester, DMT, Methyl Terephthalate, Dimethyl-p-phthalate, |
Identifiers | |
CAS number | [120-61-6] |
Properties | |
Molecular formula | C10H10O4 |
Molar mass | 194.19 g/mol |
Appearance | white solid |
Density | 1.2 g/cm³, ? |
Melting point |
140 - 142°C (? K) |
Boiling point |
288°C (? K) |
Solubility in water | ? g/100 ml (?°C) |
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
Dimethyl terephthalate (DMT) is an ester of terephthalic acid and methanol and is used in the production of polyesters, including polyethylene terephthalate and polytrimethylene terephthalate. It consists of benzene with methyl ester groups attached in the para position, or to the first and fourth carbon atoms.
DMT has largely been superseded by pure terephthalic acid (PTA) as the preferred industrial route to polyester production.
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