Isobutyronitrile

  • Isopropyl cyanide
  • 2-Methylpropionitrile
  • 2-Methylpropanenitrile
Formula
(CH3)2CHCN
Structure
Description
Colorless liquid, almond-like odor.
Uses
Intermediate for insecticides.

Registry Numbers and Inventories.
CAS
78-82-0
EC (EINECS/ELINCS)
201-147-5
EC Class
highly flammable, toxic
R 11 20 24/25
S 16 23 36/37 45
RTECS
TZ4900000
RTECS class
Primary Irritant
UN (DOT)
2284
Merck
13,5173
Beilstein/Gmelin
1340512
Beilstein Reference
4-02-00-00853
Swiss Giftliste 1
G-2299
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C4H7N
Formula mass
69.11
Melting point, °C
-72
Boiling point, °C
107
Vapor pressure, mmHg
100 (25 C)
Vapor density (air=1)
2.38
Saturation Concentration
13% (130000 ppm) at 54.4 C (calc)
Density
0.773 g/cm3 (20 C)
Solubility in water
Slightly soluble
Viscosity
0.55 cp (15 C)
Surface tension
25.48 g/s2 (15 C)
Refractive index
1.37354 (15 C)
Partition coefficient, pKow
0.46
Heat of vaporization
36.65 kJ/mol
Heat of combustion
-2564 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from heat and flame. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
B2 D1A
Handling
Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. 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. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Provide ventilation.
Disposal code
9
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong acids, strong bases, strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
8
Autoignition, °C
482
Upper exp. limit, %
11.5
Lower exp. limit, %
1.9
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. 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. Will be easily ignited by heat, sparks or flame. Containers may explode if exposed to fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Water may be ineffective. Water may spread fire. If water is the only media available, use in flooding amounts. For large fires, use water spray, fog or alcohol-resistant foam.
Fire potential
A very dangerous fire hazard when exposed to heat or flame.
Hazards
Vapor may explode if ignited in an enclosed area. Toxic oxides of nitrogen are produced during combustion. 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.
Combustion products
When heated to decomposition it emits toxic fumes of nitrogen oxides and cyanides.
Health
3
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure limit(s)
NIOSH REL: TWA 8 ppm (22 mg/m3)
Poison_Class
3
Exposure effects
May be metabolized to cyanide which in turn acts by inhibiting cytochrome oxidase impairing cellular respiration.
   Ingestion
May be fatal if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. Ingestion may result in symptoms similar to cyanide poisoning which is characterized by aspyhxiation.
   Inhalation
Causes respiratory tract irritation. Vapors may cause dizziness or suffocation. Inhalation may result in symptoms similar to cyanide poisoning which includes unconsciousness and death.
   Skin
Causes skin irritation. May be fatal if absorbed through the skin.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
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. Induce vomiting by giving one teaspoon of Syrup of Ipecac. 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. DO NOT use mouth-to-mouth respiration.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes. SPEEDY ACTION IS CRITICAL, GET MEDICAL AID IMMEDIATELY.
   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
2284
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
IBN
 
HS Code
2926 90 95
 
Std. Transport #
4909208