Dimethyl terephthalate
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| Dimethyl terephthalate | |
|---|---|
 |
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| General | |
| Systematic name | Dimethyl terephthalate |
| Other names | Terephthalic acid methyl ester, DMT, Methyl Terephthalate, Dimethyl-p-phthalate, |
| Molecular formula | C10H10O4 |
| SMILES | ? |
| Molar mass | 194.19 g/mol |
| Appearance | white solid |
| CAS number | [120-61-6] |
| Properties | |
| Density and phase | ? g/cm³, ? |
| Solubility in water | ? g/100 ml (?°C) |
| Melting point | 140 - 142°C (? K) |
| Boiling point | 288°C (? K) |
| Acidity (pKa) | ? |
| Basicity (pKb) | ? |
| Chiral rotation [α]D | ?° |
| Viscosity | ? cP at ?°C |
| Structure | |
| Molecular shape | ? |
| Coordination geometry |
? |
| Crystal structure | ? |
| Dipole moment | ? D |
| Hazards | |
| MSDS | External MSDS |
| Main hazards | ? |
| NFPA 704 | |
| Flash point | 153°C |
| R/S statement | R: ? S: 25/26 |
| RTECS number | ? |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Related compounds | |
| Other anions | ? |
| Other cations | ? |
| Related ? | ? |
| Related compounds | ? |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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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DMT has largely been superseded by pure terephthalic acid (PTA) as the preferred industrial route to polyester production.
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