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Cas Database |
| Name |
1,3-Difluorobenzene |
EINECS | 206-746-5 |
| CAS No. | 372-18-9 | Density | 1.165 g/cm3 |
| PSA | 0.00000 | LogP | 1.96480 |
| Solubility | insoluble in water | Melting Point |
-59 °C |
| Formula | C6H4F2 | Boiling Point | 83.9 °C at 760 mmHg |
| Molecular Weight | 114.095 | Flash Point | 2.2 °C |
| Transport Information | UN 1993 3/PG 2 | Appearance | clear colorless to yellowish liquid |
| Safety | 7-16-29-33-7/9 | Risk Codes | 11-20 |
| Molecular Structure |
|
Hazard Symbols |
 F,  Xn
|
| Synonyms |
Benzene, 1, 3-difluoro-;Benzene, m-difluoro-;Benzene, 1,3-difluoro- (9CI);1,3-Difluoro-benzene; |
Article Data | 77 |
1,3-Difluorobenzene Chemical Properties
Molecule structure of 1,3-Difluorobenzene (CAS NO.372-18-9):
IUPAC Name: 1,3-Difluorobenzene
Molecular Weight: 114.092766 g/mol
Molecular Formula: C6H4F2
Density: 1.165 g/cm3
Melting Point: -59 °C
Boiling Point: 83.9 °C at 760 mmHg
Flash Point: 2.2 °C
Index of Refraction: 1.448
Molar Refractivity: 26.24 cm3
Molar Volume: 97.8 cm3
Surface Tension: 26.2 dyne/cm
Enthalpy of Vaporization: 31.1 kJ/mol
Vapour Pressure: 82.7 mmHg at 25 °C
Storage Temp.: flammables area
Water Solubility: insoluble
H-Bond Acceptor: 2
Exact Mass: 114.028107
MonoIsotopic Mass: 114.028107
Canonical SMILES: C1=CC(=CC(=C1)F)F
InChI: InChI=1S/C6H4F2/c7-5-2-1-3-6(8)4-5/h1-4H
InChIKey: UEMGWPRHOOEKTA-UHFFFAOYSA-N
EINECS: 206-746-5
Product Categories: Aromatic Hydrocarbons (substituted) & Derivatives; Fluorobenzene; Fluorine Compounds; Aryl; C6; Halogenated Hydrocarbons
1,3-Difluorobenzene Uses
1,3-Difluorobenzene (CAS NO.372-18-9) is used as important intermediate of synthesis fluorine-containing medicine and pesticide.
1,3-Difluorobenzene Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LC50 | inhalation | 55gm/m3/2H (55000mg/m3) | BRAIN AND COVERINGS: RECORDINGS FROM SPECIFIC AREAS OF CNS | Izvestiya Sibirskogo Otdeleniya Akademii Nauk SSSR, Seriya Biologomeditsinskikh Nauk. Vol. 3, Pg. 91, 1965. |
1,3-Difluorobenzene Safety Profile
Hazard Codes: 
F, 
Xn
Risk Statements: 11-20
R11:Highly flammable.
R20:Harmful by inhalation.
Safety Statements: 7-16-29-33-7/9
S7:Keep container tightly closed.
S16:Keep away from sources of ignition.
S33:Take precautionary measures against static discharges.
S9:Keep container in a well-ventilated place.
RIDADR: UN 1993 3/PG 2
WGK Germany: 1
RTECS: CZ5652000
Hazard Note: Highly Flammable
HazardClass: 3
PackingGroup: II
HS Code: 29036990
1,3-Difluorobenzene Specification
1,3-Difluorobenzene (CAS NO.372-18-9) is also named as NSC 10285 ; m-Difluorobenzene ; Benzene, 1,3-difluoro- (9CI) ; Benzene, m-difluoro- . 1,3-Difluorobenzene (CAS NO.372-18-9) is clear colorless to yellowish liquid. It is toxic and flammable. It will produce toxic fluoride gas by heat. So the storage environment should be ventilate, low-temperature and dry. Keep 1,3-Difluorobenzene (CAS NO.372-18-9) separate from oxidant.
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