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- Name 1,2-Difluoroethane
- EINECS200-866-1
- CAS No. 624-72-6
- Density0,913 g/cm3
- PSA0.00000
- LogP0.92540
- SolubilityN/A
- Melting Point-118.59°C (estimate)
- FormulaC2H4 F2
- Boiling Point31ºC
- Molecular Weight66.0506
- Flash PointN/A
- Transport InformationN/A
- AppearanceN/A
- SafetyMutation data reported. When heated to decomposition it emits toxic vapors of F−.
- Risk Codes12
- Molecular Structure
- Hazard Symbols
T
F - SynonymsTF
- Article Data18
1,2-Difluoroethane Chemical Properties
IUPAC Name: 1,2-Difluoroethane
Synonyms of 1,2-Difluoroethane (CAS NO.624-72-6): Ethane, 1,2-Difluoro- ; Ethylene difluoride
Product Categories: refrigerants
CAS NO: 624-72-6
Molecular Formula: C2H4F2
Molecular Weight: 66.05
Molecular Structure: 
EINECS: 240-416-1
Index of Refraction: 1.254
Surface Tension: 10.6 dyne/cm
Density: 0.911 g/cm3
Enthalpy of Vaporization: 24.41 kJ/mol
Boiling Point: 6.1 °C at 760 mmHg
Vapour Pressure: 1470 mmHg at 25°C
1,2-Difluoroethane Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LC50 | inhalation | 977gm/m3/2H (977000mg/m3) | Toksikologicheskii Vestnik. Vol. (3), Pg. 25, 1996. | |
| rat | LCLo | inhalation | 75ppm/4H (75ppm) | National Technical Information Service. Vol. OTS0534607, |
1,2-Difluoroethane Safety Profile
Hazard Codes: 
F
T
Risk Statements: 12
R12: 1,2-Difluoroethane (CAS NO.624-72-6) is extremely flammable.
Safety Statements: 3/7-9-16-33
S3/7: Keep container tightly closed in a cool place
S9: Keep container in a well-ventilated place.
S16: Keep away from sources of ignition.
S33: Take precautionary measures against static discharges.
RIDADR: 3161
Hazard Note; Highly Toxic/Flammable
HazardClass: GAS, TOXIC, FLAMMABLE
Mutation data reported. When 1,2-Difluoroethane (CAS NO.624-72-6) is heated to decomposition, it emits toxic vapors of F−.
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