Terephthaloyl chloride, 99%

Description

CAS: 100-20-9 | C8H4Cl2O2 | 203.02 g/mol

Terephthaloyl chloride acts as a monomer with p-phenylenediamine used in the preparation of polymer viz. poly paraphenylene terephthalamide. It is an active component in performance polymers and aramid fibers, which gives flame resistance, chemical resistance, temperature stability, light weight, and very high strength. It is also used as an effective water scavenger, utilized to stabilize isocyanates and urethane prepolymers. Further, it is used in the preparation of liquid crystalline thermosets by thermal cyclotrimerization of dicyanate compounds of ring substituted bis(4-hydroxyphenyl) terepthalates. In addition to this, it is involved in the condensation reaction with difunctional alfa, μ-diaminopolystyrene to get chain-extended polystyrene containing amide bonds along the polymer backbone.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Terephthaloyl chloride acts as a monomer with p-phenylenediamine used in the preparation of polymer viz. poly paraphenylene terephthalamide. It is an active component in performance polymers and aramid fibers, which gives flame resistance, chemical resistance, temperature stability, light weight, and very high strength. It is also used as an effective water scavenger, utilized to stabilize isocyanates and urethane prepolymers. Further, it is used in the preparation of liquid crystalline thermosets by thermal cyclotrimerization of dicyanate compounds of ring substituted bis(4-hydroxyphenyl) terepthalates. In addition to this, it is involved in the condensation reaction with difunctional alfa, µ-diaminopolystyrene to get chain-extended polystyrene containing amide bonds along the polymer backbone.

Solubility
Soluble in ethanol, ether and other common organic solvents.

Notes
Incompatible with alcohols, oxidizing agents, water and strong bases.

Specifications

Chemical Identifiers

• CAS: 100-20-9
• Molecular Formula: C8H4Cl2O2
• Molecular Weight (g/mol): 203.02
• MDL Number: MFCD00000693
• InChI Key: LXEJRKJRKIFVNY-UHFFFAOYSA-N
• Synonym: terephthaloyl chloride, terephthaloyl dichloride, 1,4-benzenedicarbonyl dichloride, terephthalic acid dichloride, terephthalic dichloride, p-phthaloyl chloride, terephthalic acid chloride, p-phthalyl dichloride, p-phthaloyl dichloride, terephthalyl dichloride
• PubChem CID: 7488
• IUPAC Name: benzene-1,4-dicarbonyl chloride
• SMILES: ClC(=O)C1=CC=C(C=C1)C(Cl)=O

• Melting Point: 79°C to 83°C
• Boiling Point: 265°C
• Flash Point: 180°C (356°F)
• Quantity: 250 g
• UN Number: UN2928
• Beilstein: 607796
• Sensitivity: Moisture sensitive
• Solubility Information: Soluble in ethanol,ether and other common organic solvents.
• Formula Weight: 203.02
• Percent Purity: 99%
• Chemical Name or Material: Terephthaloyl chloride

Safety and Handling

Hazard Category	H314-H331-H335
Hazard Statement	GHS H Statement H331-H314-H318 Toxic if inhaled. Causes severe skin burns and eye damage. Causes serious eye damage.
Precautionary Statement	P260-P264b-P271-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P501c
DOTInformation	Hazard Class: 8; Packaging Group: I
EINECSNumber	202-829-5
RTECSNumber	WZ1797000
TSCA	Yes
Recommended Storage	Ambient temperatures; Store under Argon

SDS

RUO – Research Use Only