Dimethylpropanedinitrile

  • Dimethylmalononitrile
  • 2,2-Dicyanopropane
Formula
C5H6N2
Structure

Registry Numbers and Inventories.
CAS
7321-55-3
11 23/24/25 36/37/38
16 26 36/37/39 45
UN (DOT)
2926
Beilstein/Gmelin
1740212
Beilstein Reference
3-02-00-01704

Properties.
Formula
C5H6N2
Formula mass
94.12
Melting point, °C
34 - 37
Boiling point, °C
170
Vapor pressure, mmHg
1.5 (25 C)
Density
1.088 g/ml (25 C)
Solubility in water
Soluble
Refractive index
1.398 (25 C)
Heat of vaporization
40.6 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Keep away from heat, sparks, and open flame. Store in a cool dry place.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Small spills/leaks
Cover with dry-lime, sand, or soda ash. Place in covered containers using non-sparking tools and transport outdoors. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Hydrogen cyanide.

Fire.
Flash Point,°C
78
Fire fighting
Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Flammable/combustible material.
Hazards
Emits toxic fumes under fire conditions. Flammable solid.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Toxic. Toxic by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system and skin.
   Ingestion
See inhalation
   Inhalation
May cause severe injury or death. Effects may be delayed.
   Skin
See inhalation
   Eyes
See inhalation

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.
UN number
2926
Response guide
Hazard class
4.1