trans-2-Butenedinitrile

  • 2-Butenedinitrile, (2E)-
  • (E)-1,2-Dicyanoethylene
  • Fumaric dinitrile
  • Fumaric nitrile
Formula
NCCH=CHCN
Structure
Description
Needles or brown crystalline solid.

Registry Numbers and Inventories.
CAS
764-42-1
EC (EINECS/ELINCS)
212-122-3
EC Class
toxic
R 23/24/25
S 22 36/37 45
RTECS
LT2300000
RTECS class
Mutagen
UN (DOT)
3276
Beilstein/Gmelin
969245
Beilstein Reference
4-02-00-02219
Swiss Giftliste 1
G-5375
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H2N2
Formula mass
78.07
Melting point, °C
96
Boiling point, °C
186
Vapor pressure, mmHg
0.64 (25 C)
Density
1.21 g/cm3
Solubility in water
Very soluble
Refractive index
1.4349 (111 C)
Partition coefficient, pKow
-0.19
Heat of vaporization
42.4 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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
If Tyvek-type disposable protective clothing is not worn during handling of this chemical, wear disposable Tyvek-type sleeves taped to your gloves.
Respirators
Wear a NIOSH-approved half face respirator equipped with a combination filter cartridge, i.e. organic vapor/acid gas/HEPA (specific for organic vapors, HCl, acid gas, SO2 and a high efficiency particulate filter).
Small spills/leaks
If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Disposal code
9
Stability
No data.
Incompatibilities
Can react with strong acids, strong bases, strong oxidizing agents and strong reducing agents.

Fire.
Flash Point,°C
83
Fire fighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.
Fire potential
This material is probably combustible.

Health.
Poison_Class
2
Exposure effects
   Ingestion
See inhalation.
   Inhalation
Symptoms of exposure to this compound include skin, eye, mucous membrane and upper respiratory tract irritation.
   Skin
See inhalation.
   Eyes
See inhalation

First aid
 
   Ingestion
If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. MMEDIATELY transport the victim to a hospital.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
3276
Response guide
HS Code
2926 90 95