Ethylene dibromide

  • 1,2-Dibromoethane
  • EDB
  • Dibromoethane
Formula CH2BrCH2Br
Structure
Description Colorless liquid, chloroform-like odor, sweet odor.
Uses Insecticide.

Registry Numbers and Inventories.
CAS 106-93-4
EC (EINECS/ELINCS) 203-444-5
EC Index Number 602-010-00-6
EC Class Carcinogenic Category 2; Toxic; Irritant; Dangerous for the Environment
EC Risk Phrase R 45 23/24/25 36/37/38 51/53
EC Safety Phrase S 53 45 61
RTECS KH9275000
RTECS class Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant
UN (DOT) 1605
Merck 13,3830
Beilstein/Gmelin 605266
Beilstein Reference 4-01-00-00158
RCRA U067
EPA OPP 42002
Swiss Giftliste 1 G-1509
Canada DSL/NDSL DSL
US TSCA Listed
Austrailia AICS Listed
New Zealand Listed
Japan ENCS (MITI) Listed

Odor Threshold Odor threshold 76.80 mg/m3
Properties.
Formula C2H4Br2
Formula mass 187.87
Melting point, °C 10
Boiling point, °C 131.7
Vapor pressure, mmHg 11 (25 C)
Vapor density (air=1) 6.48
Saturation Concentration 1.4% at 20 C (calculated)
Critical temperature 376
Critical pressure 55.37
Density 2.180 g/cm3 (20 C)
Solubility in water 4 g/L
Viscosity 1.63 cp (25 C)
Surface tension 38.75 g/s2 (20 C)
Refractive index 1.53743 (15 C)
Dipole moment 0.92 D (25 C)
Dielectric constant 4.76 (25 C)
Partition coefficient, pKow 1.96
Heat of fusion 10.8 kJ/mol
Heat of vaporization 36.2 kJ/mol
Heat of combustion -1240 kJ/mol

Hazards and Protection.
Storage Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Storage under a nitrogen blanket has been recommended.
WHMIS D1A D2B
Handling Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Do not get on skin or in eyes. Avoid ingestion and inhalation.
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 Wear a self contained breathing apparatus and appropriate Personal protection. (See Exposure Controls, Personal Protection section). Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Carefully scoop up and place into appropriate disposal container.
Disposal code 9
Stability Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities Metals (aluminum, magnesium, zinc, calcium, sodium, and potassium), strong alkalis, strong oxidizing agents, liquid ammonia, light.
Decomposition Carbon monoxide, carbon dioxide, hydrogen bromide.

Fire.
Flash Point,°C 13
Autoignition, °C 490
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire.
Fire potential Not flammable
Hazards Contact with metals may evolve flammable hydrogen gas.
Combustion products Decomposition gases are toxic and irritating.
NFPA Health 3
  Flammability 0  
  Reactivity 0  

Health.
Exposure limit(s) OSHA PEL: TWA 20 ppm C 30 ppm 50 ppm 5-minute maximum peak NIOSH REL: Ca TWA 0.045 ppm C 0.13 ppm 15-minute See Appendix A NIOSH IDLH: Potential occupational carcinogen 100 ppm
Carcinogin G-A3, I-2A, N-2, CP65
Poison_Class 1*
Exposure effects May cause fetal effects. May cause cancer in humans.
   Ingestion Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause systemic toxicity with acidosis. May cause effects similar to those for inhalation exposure.
   Inhalation Effects may be delayed. Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. Irritation may lead to chemical pneumonitis and pulmonary edema. May cause liver and kidney damage. May cause heart disturbances, possibly leading to cardiac arrest and death. May cause lung damage.
   Skin Causes severe skin irritation. Harmful if absorbed through the skin. May cause skin burns.
   Eyes Causes severe eye irritation. May result in corneal injury.

First aid
 
   Ingestion If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Induce vomiting by giving one teaspoon of Syrup of Ipecac.
   Inhalation Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. Get medical aid.
   Skin Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number 1605
Response guide 154
Hazard class 6.1
PRTC T
Packing Group I  
USCG CHRIS Code EDB  
USCG Compatatibility Group 36 Halogenated hydrocarbons
HS Code 2903 30 36  
Std. Transport # 4921497  
IMO Pollution Category B
IMO Hazard code S/P