4,4'-Difluorobenzophenone (CTFE, R1113, CFC1113, Trifluorochloroethylene, Chlorotrifluoroethylene) CAS:345-92-6

4,4'-Difluorobenzophenone (CTFE)

4,4'-Difluorobenzophenone (Bis(4-fluorophenyl)methanone) is an organic compound with the formula of (FC₆H₄)₂CO. This a colorless solid is commonly used as a precursor to PEEK, or polyetherether ketone, a so-called high performance polymer. Because PEEK is resistant to attack, it is commonly used in carbon fiber coatings and cable insulation.

4,4'-Difluorobenzophenone is prepared by the acylation of fluorobenzene with p-fluorobenzoyl chloride. The conversion is typically conducted in the presence of an aluminium chloride catalyst in a petroleum ether solvent. FC₆H₅C(O)Cl + C₆H₅F → (FC₆H₄)₂CO + HCl

Uses

4,4'-Difluorobenzophenone can be used for optical recording materials and electrographic imaging agent and a charge control agent, but also for some of the polymerization initiator, is monomeric materials of many copolymer.

The polymer PEEK is generated from the reaction of 4,4'-difluorobenzophenone with the salts of 1,4-benzenediol. C₆H₄(ONa)₂ + (FC₆H₄)₂CO → 1/n[(C₆H₄O₂)(C₁₃H₈O)]_n + 2 NaF

Package & Transport

Package Type: Returnable Tank, ISOTANK
Package Size: 1000KG; 17 T
UN Number: 1082
Hazard Class: 2.1, 2.3

Notice

1. Store in a cool, well-ventilated area of low fire risk and out of direct sunlight.

2. Cylinders should be stored upright and firmly secured to prevent falling or being knocked over. Valve protection caps and valve cutlet threaded plugs must remain in place unless container is secured with valve outlet piped to use point. Do not drag, slide or roll cylinders.

3. Separate full containers from empty containers.

4. Avoid area where salt or other corrosive materials are present.

5.Avoid excessive inventory and storage time.

Chlorotrifluoro Ethylene


Molecular formula	C₁₃H₈OF₂ [(FC₆H₄)₂CO]
Molar mass	218.2 g/mol

IUPAC Name

4,4'-Difluorobenzophenone

Identifiers

CAS number	345-92-6
EC number	206-466-3
ChemSpider	9206
RTECS number	DJ0685000
UNII	AF215GW34G
PubChem	6594
Jmol-3D images	Image 1

SMILES[show]

InChI[show]

Properties

Appearance	Colorless Solid
Odor	faint etheral odor
Density	1.54 g/cm³ at -60℃
Melting point	107.5 to 108.5℃ (380.6 to 381.6 K)
Boiling point	137℃ (3 torr)
Vapour pressure	612 kPa at 25℃
Refractive index(n_D)	1.38 (0℃)
Solubility in water	40.1 g/L
Solubility	soluble in benzene, chloroform

MSDS	CTFE_MSDS.pdf
R-phrases	R36/37/38
S-phrases	S26/37, S36/39
	Xi
PICTOGRAMS
Flash point	170-172℃/10mm

Spectral data	UV, IR, NMR, MS
TDS	CTFE_TDS.pdf
Others Data	Analysis_report; Toxic_report; Etoxic_report; SGS_report, etc.