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Terephthaloyl chloride

Terephthaloyl chloride structure

CAS No:
100-20-9
Formula:
C8H4Cl2O2
Chemical Name:
Terephthaloyl chloride
Synonyms:
1,4-Benzenedicarbonyl dichloride;Terephthaloyl chloride;Terephthaloyl dichloride;p-Phthaloyl chloride;Terephthalic acid dichloride;p-Phthaloyl dichloride;Terephthalic acid chloride;Terephthalic dichloride;p-Phenylenedicarbonyl dichloride;1,4-Benzenedicarbonyl chloride;Benzene 1,4-dicarboxylic acid dichloride;1,4-Bis(chlorocarbonyl)benzene;1,4-Di(chlorocarbonyl)benzene;NSC 41885;106158-15-0;108454-76-8;188665-55-6;1640987-72-9;1927884-58-9
Categories:
Chemical Reagents > Organic Reagents

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Description

WHITE POWDER OR COLOURLESS NEEDLES WITH PUNGENT ODOUR.

DryPowder; Liquid; OtherSolid; PelletsLargeCrystals|WHITE POWDER OR COLOURLESS NEEDLES WITH PUNGENT ODOUR.

Terephthaloyl chloride Basic Attributes

Molecular Weight：

203.02200

Exact Mass：

203.02

EC Number：

202-829-5

UNII：

G247CO9608

ICSC Number：

0331

NSC Number：

41885

DSSTox ID：

DTXSID7026653

Color/Form：

COLORLESS NEEDLES

HScode：

2917399090

Characteristics

PSA：

34.14000

XLogP3：

2.44460

Appearance：

DryPowder; Liquid; OtherSolid; PelletsLargeCrystals

Density：

1,34 g/cm3

Melting Point：

82-84 °C

Boiling Point：

259 °C

Flash Point：

356 °F

Refractive Index：

1.571

Water Solubility：

Solubility in water: reaction

Vapor Pressure：

0.02 mm Hg ( 25 °C)

Vapor Density：

7 (vs air)

Experimental Properties：

DECOMPOSES IN WATER AND ALCOHOL

Physical Dangers：

Dust explosion possible if in powder or granular form, mixed with air.

Safety Information

Packing level：

Hazard category：

6.1

Transport codes：

UN 2923 8/PG 3

wgk germany：

hazard class code：

R34; R23

safety instructions：

S26; S27; S36/37/39; S45

RTECS Number：

WZ1797000

Marks：

C; T

Storage features：

Separated from strong oxidants. Dry. Well closed. Do NOT store or transport in containers made from metal.

Precautionary statement(s)：

P261-P280-P305 + P351 + P338-P310

Hazard Statements：

H314-H331

Fire Hazards：

Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Finely dispersed particles form explosive mixtures in air.

GHS Classification：

Not Classified| |Danger|H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]|P260, P264, P270, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P309+P311, P310, P321, P363, P405, and P501

Fire Fighting：

Use dry sand, powder, carbon dioxide. NO hydrous agents.

Irritations：

SKIN IRRITANT.

Spillage Disposal：

Personal protection: chemical protection suit and particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered plastic containers. Carefully collect remainder. Then store and dispose of according to local regulations.

Safe Storage：

Separated from strong oxidants. Dry. Well closed. Do NOT store or transport in containers made from metal.

Inhalation Risk：

A harmful concentration of airborne particles can be reached quickly when dispersed.

Effects of Short Term Exposure：

The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Exposure could cause asphyxiation due to swelling in the throat. Inhalation may cause lung oedema.

Fire Prevention：

NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.

Exposure Prevention：

PREVENT DISPERSION OF DUST!

Inhalation Prevention：

Use local exhaust or breathing protection.

Skin Prevention：

Protective clothing. Protective gloves.

Eye Prevention：

Wear safety goggles or eye protection in combination with breathing protection.

Drug Information

First Aid：

Fresh air, rest. Half-upright position. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

MeSH Entry Terms：

1,4-benzenedicarbonyl dichloride

Exposure Routes：

Serious by all routes of exposure.

Symptoms：

Cough. Sore throat. Burning sensation. Laboured breathing. Shortness of breath. Symptoms may be delayed.

Redness. Pain. Skin burns.

Redness. Pain. Blurred vision. Severe deep burns.

Terephthaloyl chloride Use and Manufacturing

Uses

Terephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acid chloride of terephthalic acid and is one of two monomers used to make Kevlar(R), the other being p-phenylenediamine. Its CAS reference number is 100-20-9 and its chemical formula is C8H4Cl2O2.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.TCL is a white crystalline solid at room temperature, soluble in common organic solvents. Its melting point is 81.5-83 °C, its boiling point is 265 °C. It is corrosive.TCL is used for making various copolymers and aramid polymers such as Heracron, Twaron and Kevlar(R):

Intermediates

Production

10,000,000 - 50,000,000 lb

Manufacturing Info：

All other basic organic chemical manufacturing|1,4-Benzenedicarbonyl dichloride: ACTIVE

Computed Properties

Molecular Weight:203.02
XLogP3:4
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:2
Exact Mass:201.9588348
Monoisotopic Mass:201.9588348
Topological Polar Surface Area:34.1
Heavy Atom Count:12
Complexity:173
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Terephthalic acid

Phosphorus oxychloride

p-Xylene

Dimethyl terephthalate

Oxalic acid

Downstream Products

p-Toluenesulfonamide

Recommended Suppliers of Terephthaloyl chloride

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Grade: Industrial Grade

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High purity Terephthaloyl chloride CAS NO.100-20-9

CAS No.: 100-20-9

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