Propionitrile

  • Ethyl cyanide
  • Propanenitrile
  • Cyanoethane
  • Propiononitrile
Formula
CH3CH2CN
Structure
Description
Clear, colorless liquid with a pleasant, ethereal-sweetish odor.
Uses
Chemical intermediate for di-n-propylamine.

Registry Numbers and Inventories.
CAS
107-12-0
EC (EINECS/ELINCS)
203-464-4
EC Class
highly flammable, very toxic, irritant
R 11 23/24/25 36
S 16 26 36/37/39 45
RTECS
UF9625000
RTECS class
Mutagen; Reproductive Effector; Primary Irritant
UN (DOT)
2404
Merck
12,8012
Beilstein/Gmelin
773680
Beilstein Reference
4-02-00-00728
RCRA
P101
Swiss Giftliste 1
G-2140
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C3H5N
Formula mass
55.08
Melting point, °C
-93
Boiling point, °C
97.2
Vapor pressure, mmHg
40 (25 C)
Vapor density (air=1)
1.9
Saturation Concentration
52600 ppm (22 C)
Critical temperature
272
Critical pressure
48.20
Density
0.8015 g/cm3 (0 C)
Solubility in water
119 g/L (20 C)
Viscosity
411.00 cp (25 C)
Surface tension
20.56 g/s2 (80 C)
Refractive index
1.36388 (20 C)
Dipole moment
4.05 D
Dielectric constant
31.3 (1 C)
Partition coefficient, pKow
0.16
Heat of fusion
6.1 kJ/mol
Heat of vaporization
36 kJ/mol
Heat of combustion
-1911 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. 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. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not get on skin or in eyes. Do not ingest or inhale. Use with adequate ventilation. Wash clothing before reuse. 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 gloves to prevent skin exposure. Clothing: Wear appropriate 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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. 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
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong reducing agents, strong acids, strong bases.
Decomposition
Hydrogen cyanide, nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
6
Autoignition, °C
515
Upper exp. limit, %
14.0
Lower exp. limit, %
3.1
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Do NOT use water directly on fire. Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide or alcohol resistant foam.
Fire potential
Quite flammable.
Hazards
When heated to decomposition, it emits toxic fumes of nitrogen oxides and cyanide. It is a flammable/combustible material and may be ignited by heat, sparks or flames. Vapors may travel to a source of ignition and flash back. Container may explode in heat of fire. Vapor explosion and poison hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Generates cyanide ions. Poisonous on contact with acids. stable, but may become unstable at elevated temperatures and pressures.
Combustion products
When heated to decompose it emits toxic fumes of nitrogen oxides and cyanides.
Health
4
 
Flammability
3
 
 
Reactivity
1
 

Health.
Exposure limit(s)
NIOSH REL: TWA 6 ppm (14 mg/m3)
Poison_Class
2
Exposure effects
May cause cyanosis - a blue-gray coloring of the skin and lips caused by a lack of oxygen. Massive doses may produce, without warning, sudden loss of consciousness and prompt death from respiratory arrest.
   Ingestion
May be fatal if swallowed. Contains cyanide.
   Inhalation
Vapors may cause dizziness or suffocation. Vapor or mist is irritating to the mucous membranes and upper respiratory tract.
   Skin
Causes skin irritation. Harmful if absorbed through the skin.
   Eyes
Vapors cause eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. DO NOT use mouth-to-mouth respiration. Administer oxygen. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   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. Wash clothing before reuse.
   Eyes
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
2404
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
PCN
 
HS Code
2926 90 95
 
Std. Transport #
4909281
 
IMO Pollution Category
C
IMO Hazard code
S/P