Butyronitrile

  • Propyl cyanide
  • Butane nitrile
  • Butyric acid nitrile
  • 1-Cyanopropane
Formula
CH3CH2CH2CN
Structure
Description
Colorless liquid, sharp odor.
Uses
Basic material in indust, chemical and pharmaceutical intermediates and products, poultry medicines.

Registry Numbers and Inventories.
CAS
109-74-0
EC (EINECS/ELINCS)
203-700-6
EC Index Number
608-005-00-5
EC Class
Flammable; Toxic
R 10 23/24/25
RTECS
ET8750000
RTECS class
Reproductive Effector; Primary Irritant
UN (DOT)
2411
Merck
13,1597
Beilstein/Gmelin
1361452
Beilstein Reference
4-02-00-00806
Swiss Giftliste 1
G-2173
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C4H7N
Formula mass
69.11
Melting point, °C
-112
Boiling point, °C
118
Vapor pressure, mmHg
21 (25 C)
Vapor density (air=1)
2.4
Saturation Concentration
25000 ppm at 25 C (calculated)
Critical temperature
312
Critical pressure
38.29
Density
1.023 g/cm3 (-150 C)
Solubility in water
30 g/L
Viscosity
0.62 cp (15 C)
Surface tension
26.97 g/s2 (20 C)
Refractive index
1.38385 (20 C)
Partition coefficient, pKow
0.53
Heat of fusion
5.0 kJ/mol
Heat of vaporization
39.33 kj/mol
Heat of combustion
-2580 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. Keep away from acids.
B2 D1A
Handling
Wash thoroughly after handling. Ground and bond containers when transferring material. Do not get on 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. Do not ingest or inhale. Use only in a chemical fume hood. 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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective 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. Use water spray to dilute spill to a non-flammable mixture. 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. Use water spray to disperse the gas/vapor. Remove all sources of ignition. Provide ventilation.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong acids - strong bases - strong oxidizing agents - strong reducing agents.
Decomposition
Hydrogen cyanide, nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
18
Autoignition, °C
488
Upper exp. limit, %
11.4
Lower exp. limit, %
1.6
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. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Water may be ineffective. For large fires, use water spray, fog or alcohol-resistant foam. Do NOT use straight streams of water. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Flammable, dangerous fire risk. Dangerous fire hazard when exposed to heat, flame, or oxidizers.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers.
Combustion products
Toxic cyanide fumes
Health
3
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure limit(s)
NIOSH REL: TWA 8 ppm (22 mg/m3)
Poison_Class
3
Exposure effects
Headache may be an early sign of cyanide poisoning. CNS stimulation with varied presentations may be seen in the early stages of cyanide poisoning. Coma and seizures are common in severe cyanide poisoning. In one case paralysis occurred, and parkinsonian syndromes have been observed. Rare cases of neurological sequelae have been reported. In experimental animals, related cyanide compounds did cause resorptions, malformations and teratogenic effects in the offspring. <br>No information about possible male reproductive effects was found in available references.
   Ingestion
May be fatal if swallowed. May cause irritation of the digestive tract. Forms cyanide in the body. Cyanide in the body is capable of producing cyanosis.
   Inhalation
May cause respiratory tract irritation.
   Skin
Causes skin irritation. Harmful 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.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   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
2411
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
BNI
 
HS Code
2926 90 95
 
Std. Transport #
4909241