1,2-Dichloro-1,1,2,2- tetrafluoroethane

  • 1,1,2,2-Tetrafluoro-1,2-dichloroethane
  • 1,2-Dichloroperfluoroethane
  • 1,2-Dichlorotetrafluoroethane
  • Refrigerant 114
  • Freon 114
  • F 114
Formula
ClCF2CClF2
Structure

Registry Numbers and Inventories.
CAS
76-14-2
EC (EINECS/ELINCS)
200-937-7
RTECS
KI1101000
RTECS class
Other
UN (DOT)
1958
Merck
12,2672
Beilstein/Gmelin
1740333
Beilstein Reference
4-01-00-00137
EPA OPP
326200
Swiss Giftliste 1
G-1538
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C2Cl2F4
Formula mass
170.92
Melting point, °C
-94
Boiling point, °C
3 - 4
Vapor pressure, mmHg
1590 (25 C)
Critical temperature
146
Critical pressure
32.17
Density
1.455 g/cm3 (25 C)
Solubility in water
Insoluble
Surface tension
12 g/s2
Refractive index
1.3092 (0 C)
Partition coefficient, pKow
2.82
Heat of fusion
1.5 kJ/mol
Heat of vaporization
27.0 kJ/mol
Heat of combustion
-626 kJ/mol

Hazards and Protection.
Storage
Store in cool place free from material of an inflammable nature, in suitable metal containers.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Stability
Conditions contributing to instability: Heat.
Incompatibilities
Can react violently with strong reducing agents such as the very active metals and the active metals Can react with strong oxidizing agents or weaker oxidizing agents under extremes of temperature.

Fire.
Flash Point,°C
-46
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Do not use water on material itself. Use water spray to knock-down vapors.
Fire potential
May burn but does not ignite readily.
Hazards
Containers may explode when heated. Ruptured cylinders may rocket.
Combustion products
Toxic substances may be formed on contact with a flame or hot metal surface.

Health.
Exposure limit(s)
NIOSH REL: TWA 1000 ppm (7000 mg/m3) OSHA PEL: TWA 1000 ppm (7000 mg/m3) IDLH 15,000 ppm
Poison_Class
5
Exposure effects
Headache, dizziness, and disorientation are common. Cerebral edema may be found on autopsy. Dichlorodifluoromethane was not teratogenic in rats and rabbits. <br>The reproductive effects of 1,1,1,2-tetrafluoroethane were studied in rats. No adverse effects on reproductive performance was noted or on the development, maturation or reproductive performance of up to two successive generations.
   Ingestion
Nausea may develop. Ingestion of a small amount of trichlorofluoromethane resulted in necrosis and perforation of the stomach in one patient.
   Inhalation
Vapors may cause dizziness or asphyxiation without warning.
   Skin
Dermal contact may result in defatting, irritation or contact dermatitis. Severe frostbite has been reported as an effect of freon exposure. Injection causes transient pain, erythema and edema.
   Eyes
See Skin.

First aid
 
   Ingestion
These substances may cause frostbite to the upper airway and gastrointestinal tract after ingestion. Administer oxygen and manage airway as clinically indicated. Emesis, activated charcoal, and gastric lavage are not recommended.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. If frostbite has occurred, refer to dermal treatment in the main body of this document for rewarming.
   Eyes
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Transport.
UN number
1958
Response guide
Hazard class
2.2
USCG CHRIS Code
DTE
 
Std. Transport #
4904526