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Names and Identifiers
Name Terephthaloyl chloride
Synonyms Benzene-1,4-dicarbonyl chloride
TCl
terephthaloyl dichloride
benzene-1,4-dicarbonyl dichloride
p-phthaloyl chloride
1,4-benzenedicarbonyl chloride
CAS 100-20-9
EINECS 202-829-5
InChI InChI=1/C8H4Cl2O2/c9-7(11)5-1-2-6(4-3-5)8(10)12/h1-4H

Physico-chemical Properties
Molecular Formula C8H4Cl2O2
Molar Mass 203.022 g/mol
Density 1.427g/cm3
Melting Point 79-83℃
Boling Point 266°C at 760 mmHg
Flash Point 143.1°C
Solubility REACTS
Vapor Presure 0.00887mmHg at 25°C
Refractive Index 1.571

Risk and Safety
Hazard Symbols T – Toxic
Toxic
Risk Codes R23 – Toxic by inhalation
R34 – Causes burns
Safety Description S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection.
S38 – In case of insufficient ventilation, wear suitable respiratory equipment.
S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs UN 2928

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CAS 100-20-9 | Terephthaloyl chloride
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