trans-1,2-dichloroethylene

  • trans-Dichloroethylene
Formula
C2H2Cl2
Structure
Description
Colorless, light liquid. Sweetish.
Uses
Used as a solvent for waxes, resins and acetylcellulose. It is also used in the extraction of rubber, as a refrigerant, in the manufacture of pharmaceuticals and artificial pearls and in the extraction of oils and fats from fish and meat. 1,2-Dichloroethylene.

Registry Numbers and Inventories.
CAS
156-60-5
EC (EINECS/ELINCS)
205-860-2
EC Index Number
602-026-00-3
EC Class
Highly flammable; Harmful; Dangerous for the Environment
R 11 20 52/53
S 7 16 29 61
RTECS
KV9400000
RTECS class
Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant
UN (DOT)
1150
Merck
12,93
Beilstein/Gmelin
1420761
Beilstein Reference
4-01-00-00709
RCRA
U079
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C2H2Cl2
Formula mass
96.94
Melting point, °C
-49
Boiling point, °C
48
Vapor pressure, mmHg
333 (25 C)
Vapor density (air=1)
3.67
Odor Threshold Odor threshold 0.3357 mg/m3
Critical temperature
244
Critical pressure
54.40
Density
1.257 g/cm3 (20 C)
Solubility in water
Slightly soluble
Viscosity
0.39 cp (25 C)
Surface tension
25 g/s2 (20 C)
Refractive index
1.444 (25 C)
Partition coefficient, pKow
2.06
Heat of fusion
12.0 kJ/mol
Heat of vaporization
30.3 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. Use a spark-proof tool.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Copper, copper alloys, oxidizing agents, alkalies, bases.
Decomposition
Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
2
Autoignition, °C
460
Upper exp. limit, %
12.8
Lower exp. limit, %
5.6
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Extinguishing media: Use water spray to cool fire-exposed containers. In case of fire, use water fog, dry chemical, carbon dioxide, or regular foam.
Fire potential
Flammable, dangerous fire hazard.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Phosgene and hydrogen chloride fumes may form in fires.
Health
2
 
Flammability
3
 
 
Reactivity
2
 

Health.
Exposure effects
CNS depression and coma have occurred with exposure to airborne concentrations of tens of thousands of ppm. Stupor and lack of coordination may occur with exposure to airborne concentrations greater than 13,000 ppm.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. May cause central nervous system depression.
   Inhalation
May cause respiratory tract irritation. May cause narcotic effects in high concentration. May cause nausea and possible vomiting.
   Skin
Causes moderate skin irritation. May cause dermatitis.
   Eyes
Causes moderate eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1150
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
CLF
 
36 Halogenated hydrocarbons