Ethylene dichloride

  • sym-Ethylene chloride
  • 1,2-Dichloroethane
  • Ethane dichloride
Formula
ClCH2CH2Cl
Structure
Description
Colorless liquid, pleasant, chloroform-like odor, decomposes slowly, becomes acidic and darkens in color.
Uses
Solvent for fats, oils, waxes, gums, resins, and particularly for rubber, insecticide.

Registry Numbers and Inventories.
CAS
107-06-2
EC (EINECS/ELINCS)
203-458-1
EC Index Number
602-012-00-7
EC Class
Highly flammable; Carcinogenic Category 2; Harmful; Irritant
R 45 11 22 36/37/38
RTECS
KI0525000
RTECS class
Agricultural Chemical and Pesticide; Tumorigen; Drug; Mutagen; Reproductive Effector; Human Data; Primary Irritant
UN (DOT)
1184
Merck
13,3831
Beilstein/Gmelin
605264
Beilstein Reference
4-01-00-00131
RCRA
U077
EPA OPP
42003
Swiss Giftliste 1
G-1519
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C2H4Cl2
Formula mass
98.97
Melting point, °C
-35.5
Boiling point, °C
83.5
Vapor pressure, mmHg
87 (25 C)
Vapor density (air=1)
3.42
Saturation Concentration
8.7% at 20 C
Evaporization number
4.1 (diethyl ether = 1)
Odor Threshold Odor threshold 6 - 40 ppm
Critical temperature
290
Critical pressure
52.9
Density
1.254 g/cm3 (20 C)
Solubility in water
8.1 g/L (20 C)
Viscosity
0.84 cp @ 20C
Surface tension
35.14 g/s2 (20 C)
Refractive index
1.4443 (20 C)
Dipole moment
1.75 D (20 C)
Dielectric constant
10.6 (20 C)
Partition coefficient, pKow
1.48
Heat of fusion
8.8 kJ/mol
Heat of vaporization
34.9 kJ/mol
Heat of combustion
-1241 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
B2 D1A D2B
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. 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. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use with adequate ventilation. 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. Polyvinyl alcohol and Viton are recommended materials for protective clothing and gloves.
Respirators
Wear a supplied air, full-facepiece respirator, airlined hood, or full-facepiece self-contained breathing apparatus. This substance has poor warning properties.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Disposal code
2
Stability
Stable at room temperature in closed containers under normal storage and handling conditions. Darkens when exposed to light or air.
Incompatibilities
Aluminum or magnesium powder, oxidizing agents, reducing agents, organic peroxides, alkali and alkali earth metals, nitric acid, caustics, nitrogen tetraoxide, ammonia, and dimethylaminopropylamine.
Decomposition
Phosgene, hydrogen chloride, acetylene, and vinyl chloride when heated to decomposition.

Fire.
Flash Point,°C
13
Autoignition, °C
413
Upper exp. limit, %
16
Lower exp. limit, %
6.2
Fire fighting
Wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode. Extinguish using dry chemical, foam or carbon dioxide. Water spray may be used to keep fire exposed containers cool, dilute spills to nonflammable mixtures, protect personnel attempting to stop leak and disperse vapors.
Fire potential
Flammable liquid and vapor.
Hazards
High hazard. 1,2-Dichloroethane is flammable and is dangerous when exposed to heat, flame or oxidizers. The vapor is also flammable and may travel a considerable distance before reaching an ignition point. Sensitive to static discharge.
Combustion products
Toxic and irritating gases (hydrogen chloride, phosgene) are generated.
Health
2
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure limit(s)
NIOSH REL: Ca TWA 1 ppm (4 mg/m3) ST 2 ppm (8 mg/m3) See Appendix A See Appendix C (Chloroethanes) NIOSH IDLH: Potential occupational carcinogen 50 ppm
Carcinogin
I-2B, N-2, CP65
Poison_Class
1*
Exposure effects
Repeated or prolonged exposure may cause weight loss, low blood pressure, jaundice, reduced urinary output, dermatitis, eye damage and anemia. Dichloroethane is a suspected human carcinogen based on animal data.
   Ingestion
Causes irritation to the gastrointestinal tract. Symptoms may include nausea, vomiting and diarrhea. Toxic effects parallel those of inhalation. Doses of 0.5 - 1.0 g/kg can be fatal.
   Inhalation
Inhalation of vapors irritates the respiratory tract. May cause headache, weakness, cyanosis, nausea, vomiting, and diarrhea. These symptoms may be followed by central nervous system effects, liver damage, kidney damage, adrenal gland damage, cyanosis, weak and rapid pulse and unconsciousness. Death can occur from respiratory and circulatory failure.
   Skin
Causes irritation, rash and blister formation. Prolonged contact can cause skin burns. Can be absorbed through skin with toxic effects.
   Eyes
Vapors cause eye irritation. Splashes cause severe irritation, possible corneal burns and eye damage.

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

Transport.
UN number
1184
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
EDC
 
36 Halogenated hydrocarbons
HS Code
2903 15 00
 
Std. Transport #
4913242
 
IMO Pollution Category
B
IMO Hazard code
S/P