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Cas Database |
| Name |
1,1,1,2-Tetrachloro-2,2-difluoroethane |
EINECS | 200-934-0 |
| CAS No. | 76-11-9 | Density | 1.726 g/cm3 |
| PSA | 0.00000 | LogP | 3.18820 |
| Solubility | N/A | Melting Point |
39-44 °C |
| Formula | C2Cl4F2 | Boiling Point | 93.3 °C at 760 mmHg |
| Molecular Weight | 203.831 | Flash Point | 11.8 °C |
| Transport Information | N/A | Appearance | colorless crystalline solid |
| Safety | S59; S37/39; S26 | Risk Codes | R59; R36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 N
 Xi
|
| Synonyms |
1,1-Difluoro-1,2,2,2-tetrachloroethane;1,1-Difluoroperchloroethane;1,2,2,2-Tetrachloro-1,1-difluoroethane;2,2-Difluoro-1,1,1,2-tetrachloroethane; |
Article Data | 42 |
1,1,1,2-Tetrachloro-2,2-difluoroethane Chemical Properties
Molecular Structure of 1,1,1,2-Tetrachloro-2,2-difluoroethane (CAS NO.76-11-9):
.png)
IUPAC Name: 1,1,1,2-Tetrachloro-2,2-difluoroethane
Empirical Formula: C2Cl4F2
Molecular Weight: 203.8302
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 0 Å2
Index of Refraction: 1.437
Molar Refractivity: 30.97 cm3
Molar Volume: 118 cm3
Surface Tension: 29.2 dyne/cm
Density: 1.726 g/cm3
Flash Point: 11.8 °C
Enthalpy of Vaporization: 31.92 kJ/mol
Boiling Point: 93.3 °C at 760 mmHg
Vapour Pressure: 56.7 mmHg at 25°C
Storage temp: Refrigerator(+4°C)
EINECS: 200-934-0
Melting Point: 39-44 °C
Product Categories: CFC; refrigerants
Apperance: colorless solid with a slight, ether-like odor
InChI
InChI=1/C2Cl4F2/c3-1(4,5)2(6,7)8
Smiles
C(C(Cl)(Cl)Cl)(F)(F)Cl
1,1,1,2-Tetrachloro-2,2-difluoroethane Production
Join anhydrous aluminum chloride into the melting Freon 112 quickly when stirring for 2-3h, then heated to 60-70 ℃, heat filter, filtrate fractionation, collecting 91-92 ℃ distillate,get 2,2 - difluoro-tetrachloroethane. Yield is 70%.
1,1,1,2-Tetrachloro-2,2-difluoroethane Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LCLo | inhalation | 20000ppm/30M (20000ppm) | BEHAVIORAL: GENERAL ANESTHETIC BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LIVER: OTHER CHANGES | Toxicology and Applied Pharmacology. Vol. 19, Pg. 1, 1971. |
| rat | LD50 | oral | > 8gm/kg (8000mg/kg) | Nature. Vol. 210, Pg. 744, 1966. |
1,1,1,2-Tetrachloro-2,2-difluoroethane Consensus Reports
Reported in EPA TSCA Inventory.
1,1,1,2-Tetrachloro-2,2-difluoroethane Safety Profile
Mildly toxic by inhalation. When heated to decomposition it emits very toxic fumes of Cl− and F−. Used as a refrigerant. See also Fluorides.Safety information of 1,1,1,2-Tetrachloro-2,2-difluoroethane (CAS NO.76-11-9):
Hazard Codes: 
N,
Xi
Risk Statements
59 Dangerous for the ozone layer
36/37/38 Irritating to eyes, respiratory system and skin
Safety Statements
59 Refer to manufacturer/supplier for information on recovery/recycling
37/39 Wear suitable gloves and eye/face protection
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
1,1,1,2-Tetrachloro-2,2-difluoroethane Standards and Recommendations
OSHA PEL: TWA 500 ppm
ACGIH TLV: TWA 500 ppm
DFG MAK: 1000 ppm (8500 mg/m3)
NIOSH REL: (1,1,1,2-Tetrachloro-2,2-difluoroethane) TWA 500 ppm
1,1,1,2-Tetrachloro-2,2-difluoroethane Specification
1,1,1,2-Tetrachloro-2,2-difluoroethane , with CAS number of 76-11-9, can be called 1,1,1,2-Tetrachloro-2,2-difluoroethane ; 1,1-Difluoro-1,2,2,2-tetrachloroethane ; 1,1-Difluoroperchloroethane ; 1,2,2,2-Tetrachloro-1,1-difluoroethane ; Ethane,1,1,1,2-tetrachloro-2,2-difluoro- ; 2,2-Difluoro-1,1,1,2-tetrachloroethane . It is a colorless crystalline solid, incompatible with active metals such as potassium, sodium, beryllium, powdered aluminum, zinc, magnesium and calcium. Reacts with acids. 1,1,1,2-Tetrachloro-2,2-difluoroethane (CAS NO.76-11-9) is used as intermediate for methoxyflurane of anesthetics.
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