trans-1,4-Dichloro-2-butene

  • 1,4-Dichloro-trans-2-butene
  • trans-1,4-Dichlorobuten-2-ene
  • 2-Butene, 1,4-dichloro-, (2E)-
Formula
C4H6Cl2
Structure
Description
Colorless liquid with a distinct odor.
Uses
Chemical intermediate for hexamethylenediamine & chloroprene.

Registry Numbers and Inventories.
CAS
110-57-6
EC (EINECS/ELINCS)
203-779-7
RTECS
EM4903000
RTECS class
Tumorigen
UN (DOT)
2927
Beilstein/Gmelin
1719693
Beilstein Reference
4-01-00-00787
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H6Cl2
Formula mass
125.00
Melting point, °C
1
Boiling point, °C
156
Vapor pressure, mmHg
3.9 (25 C)
Critical temperature
373
Critical pressure
37.3
Density
1.1873 g/cm3 (20 C)
Solubility in water
Slightly soluble
Viscosity
1.293x10-3 pa-sec @ melting point
Surface tension
24 g/s2
Refractive index
1.4870 (20 C)
Heat of vaporization
37.6 kJ/mol
Heat of combustion
-5063 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a tightly closed container. Store in a dry area. Keep under an argon blanket. Refrigerator (approx 4 C).
Handling
Use spark-proof tools and explosion proof equipment. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
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
Reacts slowly with water to form hydrochloric acid.
Incompatibilities
Strong oxidizing agents, strong bases.
Decomposition
Hydrogen chloride, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
54
Upper exp. limit, %
4
Lower exp. limit, %
1.5
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. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
Flammable dichlorobutene
Hazards
The material will burn, though it may require some effort to ignite. Fire produces irritating and poisonous gases. When heated to decomposition, it emits toxic fumes of chlorine-containing compounds.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
May cause cancer in humans.
   Ingestion
Poison by ingestion. Causes gastrointestinal tract burns.
   Inhalation
May be fatal if inhaled. Causes chemical burns to the respiratory tract. May cause abdominal pain, nausea, vomiting, and inflammation of the gums and mouth.
   Skin
Causes skin burns. Toxic in contact with skin.
   Eyes
Causes eye burns. Lachrymator.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. SPEED IS ESSENTIAL. A DOCTOR MUST BE NOTIFIED AT ONCE.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. 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
2927
Response guide
Hazard class
6.1
Packing Group
I; II
 
USCG CHRIS Code
DCU