Names | |
---|---|
Preferred IUPAC name
Benzene-1,4-dicarbonyl dichloride
[1] | |
Other names
Terephthaloyl dichloride
[1]
1,4-Benzenedicarbonyl chloride Benzene-1,4-dicarbonyl chloride Terephthalic acid dichloride Terephthaloyl dichloride p-Phthalyl chloride TCL | |
Identifiers | |
3D model (
JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.002.572 |
PubChem
CID
|
|
UNII | |
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties | |
C8H4Cl2O2 | |
Molar mass | 203.02 g/mol |
Appearance | white solid |
Density | 1.34 g/cm3 |
Melting point | 81.5 to 83 °C (178.7 to 181.4 °F; 354.6 to 356.1 K) |
Boiling point | 265 °C (509 °F; 538 K) |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Terephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acyl chloride of terephthalic acid. It is a white solid at room temperature. It is one of two precursors used to make Kevlar, the other being p-phenylenediamine. TCL is used as a key component in performance polymers and aramid fibers, where it imparts flame resistance, chemical resistance, temperature stability, light weight, and very high strength. TCL is also an effective water scavenger, used to stabilize isocyanates and urethane prepolymers.
Terephthalic acid dichloride is produced commercially by the reaction of 1,4-bis(trichloromethyl)benzene with terephthalic acid: [2]
It can also be obtained by chlorination of dimethyl terephthalate. [3]
TCL is used for making various copolymers and aramid polymers such as Heracron, Twaron and Kevlar:
{{
cite book}}
: CS1 maint: DOI inactive as of June 2024 (
link)
Names | |
---|---|
Preferred IUPAC name
Benzene-1,4-dicarbonyl dichloride
[1] | |
Other names
Terephthaloyl dichloride
[1]
1,4-Benzenedicarbonyl chloride Benzene-1,4-dicarbonyl chloride Terephthalic acid dichloride Terephthaloyl dichloride p-Phthalyl chloride TCL | |
Identifiers | |
3D model (
JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.002.572 |
PubChem
CID
|
|
UNII | |
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties | |
C8H4Cl2O2 | |
Molar mass | 203.02 g/mol |
Appearance | white solid |
Density | 1.34 g/cm3 |
Melting point | 81.5 to 83 °C (178.7 to 181.4 °F; 354.6 to 356.1 K) |
Boiling point | 265 °C (509 °F; 538 K) |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Terephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acyl chloride of terephthalic acid. It is a white solid at room temperature. It is one of two precursors used to make Kevlar, the other being p-phenylenediamine. TCL is used as a key component in performance polymers and aramid fibers, where it imparts flame resistance, chemical resistance, temperature stability, light weight, and very high strength. TCL is also an effective water scavenger, used to stabilize isocyanates and urethane prepolymers.
Terephthalic acid dichloride is produced commercially by the reaction of 1,4-bis(trichloromethyl)benzene with terephthalic acid: [2]
It can also be obtained by chlorination of dimethyl terephthalate. [3]
TCL is used for making various copolymers and aramid polymers such as Heracron, Twaron and Kevlar:
{{
cite book}}
: CS1 maint: DOI inactive as of June 2024 (
link)