100-20-9

Name Terephthaloyl chloride
CAS 100-20-9
EINECS(EC#) 202-829-5
Molecular Formula C8H4Cl2O2
MDL Number MFCD00000693
Molecular Weight 203.02
MOL File 100-20-9.mol
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Chemical Properties

Appearance white crystalline flakes
Melting point  79-81 °C(lit.)
Boiling point  266 °C(lit.)
density  1,34 g/cm3
vapor density  7 (vs air)
vapor pressure  0.02 mm Hg ( 25 °C)
refractive index  1.5684 (estimate)
Fp  356 °F
storage temp.  2-8°C
solubility  ethanol: 5%, clear
form  flakes
color  White to Almost white
Odor char. odor
PH <0.5 (H2O)
explosive limit 1.5-8.9%(V)
Water Solubility  REACTS
Sensitive  Moisture Sensitive
BRN  607796
InChI 1S/C8H4Cl2O2/c9-7(11)5-1-2-6(4-3-5)8(10)12/h1-4H
InChIKey LXEJRKJRKIFVNY-UHFFFAOYSA-N
SMILES ClC(=O)c1ccc(cc1)C(Cl)=O
Uses
Dyemanufacture; synthetic fibers, resins, films; UV absorption; pharmaceuticals; rubber chemicals; cross-linking agent for polyurethanes and polysulfides.
CAS DataBase Reference 100-20-9(CAS DataBase Reference)
NIST Chemistry Reference 1,4-Benzenedicarbonyl dichloride(100-20-9)
EPA Substance Registry System 100-20-9(EPA Substance)
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Safety Data

Symbol(GHS)  Corrosion (GHS05)Skull and Crossbones (GHS06)
GHS05,GHS06
Signal word  Danger
Hazard statements  H314-H331-H335
Precautionary statements  P260-P271-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  C,T
Risk Statements 
R34:Causes burns.
R23:Toxic by inhalation.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S38:In case of insufficient ventilation, wear suitable respiratory equipment .
RIDADR  UN 2923 8/PG 3
WGK Germany  3
RTECS  WZ1797000
TSCA  Yes
REACH Registrations Active
HazardClass  6.1
PackingGroup  II
HS Code  29173980
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 3 Inhalation
Eye Dam. 1
Skin Corr. 1A
STOT SE 3
Safety Profile
Moderately toxic by ingestion. Corrosive. Combustible when exposed to heat or flame. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORIDES.
Hazardous Substances Data 100-20-9(Hazardous Substances Data)

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Material Safety Data Sheet(MSDS)

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