Terephthaloyl chloride, 99%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11453554	Thermo Scientific Alfa Aesar A11224.30	250 g
11443554	Thermo Scientific Alfa Aesar A11224.0B	1000 g

Description

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.

Chemical Identifiers

• CAS: 100-20-9
• Molecular Weight (g/mol): 203.02
• InChI Key: LXEJRKJRKIFVNY-UHFFFAOYSA-N
• PubChem CID: 7488
• SMILES: ClC(=O)C1=CC=C(C=C1)C(Cl)=O

• Molecular Formula: C8H4Cl2O2
• MDL Number: MFCD00000693
• 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
• IUPAC Name: benzene-1,4-dicarbonyl chloride

Specifications

• CAS: 100-20-9
• Boiling Point: 265°C
• Molecular Formula: C8H4Cl2O2
• UN Number: UN2928
• Sensitivity: Moisture sensitive
• Solubility Information: Soluble in ethanol,ether and other common organic solvents.
• SMILES: ClC(=O)C1=CC=C(C=C1)C(Cl)=O
• Molecular Weight (g/mol): 203.02
• Formula Weight: 203.02
• Chemical Name or Material: Terephthaloyl chloride

• Melting Point: 79°C to 83°C
• Flash Point: 180°C (356°F)
• MDL Number: MFCD00000693
• Beilstein: 607796
• 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
• InChI Key: LXEJRKJRKIFVNY-UHFFFAOYSA-N
• IUPAC Name: benzene-1,4-dicarbonyl chloride
• PubChem CID: 7488
• Percent Purity: 99%

Safety and Handling

GHS H Statement
H331-H314-H318
Toxic if inhaled.
Causes severe skin burns and eye damage.
Causes serious eye damage.

P260-P264b-P271-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P501c

H314-H331-H335

missing translation for 'dotInformation' : Hazard Class: 8; Packaging Group: I

missing translation for 'einecsNumber' : 202-829-5

missing translation for 'rtecsNumber' : WZ1797000

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures; Store under Argon

Product Identifier

• Terephthaloyl chloride

Signal Word

• Danger

Hazard Category

• Acute toxicity Category 3
• Serious eye damage/eye irritation Category 1
• Skin corrosion/irritation Category 1 A

Hazard Statement

• H314-Causes severe skin burns and eye damage.
• H318-Causes serious eye damage.
• H331-Toxic if inhaled.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
• P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
• P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P310-Immediately call a POISON CENTER/doctor/.

Supplemental information

• MIXTURE LIST-Contains : 1,4-Benzenedicarbonyl dichloride

RUO – Research Use Only