Isobutylamine

  • 2-Methyl-1-propanamine
  • 2-Methylpropylamine
  • 1-Amino-2-methylpropane
Formula
(CH3)2CHCH2NH2
Structure
Description
Clear, colorless liquid with an ammonia-like or fishy odor.
Uses
Organic synthesis, insecticides.

Registry Numbers and Inventories.
CAS
78-81-9
EC (EINECS/ELINCS)
201-145-4
EC Class
highly flammable, harmful, corrosive
R 11 20/22 35
S 16 26 36/37/39 45
RTECS
NP9900000
RTECS class
Other
UN (DOT)
1214
Merck
13,5149
Beilstein/Gmelin
385626
Beilstein Reference
4-04-00-00625
Swiss Giftliste 1
G-5446
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C4H11N
Formula mass
73.14
Melting point, °C
-85
Boiling point, °C
66
Vapor pressure, mmHg
92 (16 C)
Vapor density (air=1)
2.5
Saturation Concentration
Approximately 132000 ppm (13.2%) at 19 C (calculated)
Critical temperature
246
Critical pressure
40.2
Density
0.7344 g/cm3 (20 C)
Solubility in water
Very soluble
Viscosity
0.553 cp (25 C)
Surface tension
21.75 g/s2 @ 25 C
Refractive index
1.3988 (20 C)
Dipole moment
1.27 D
pKa/pKb
3.32 (pKb)
Partition coefficient, pKow
0.73
Heat of vaporization
33.9 kJ/mol
Heat of combustion
-3014 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 D1B E
Handling
Wash thoroughly after handling. Use only in a well ventilated area. 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. 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. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Alkali metals, copper, copper alloys, halogens, organic acids, phenols, vinyl acetate, epichlorohydrin, alcohols and glycols (e.g. butyl alcohol, ethanol, methanol, ethylene glycol), aldehydes (e.g. acetaldehyde, acrolein, chloral hydrate, formaldehyde), isocyanates (e.g. methyl isocyanate), ketones (e.g. acetone, acetophenone, MEK, MIBK), organic anhydrides, mineral acids.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
-10
Autoignition, °C
400
Upper exp. limit, %
9
Lower exp. limit, %
2
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. Extremely flammable liquid. Containers may explode in the heat of a fire. Will be easily ignited by heat, sparks or flame. 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. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.
Fire potential
Dangerous, when exposed to heat or flame; can react vigorously with oxidizing materials
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 hazard indoors, outdoors or in sewers.
Combustion products
Toxic oxides of nitrogen may be formed in fire.
Health
3
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure limit(s)
MAK: 5 ppm; 15 mg/m3; skin (1993).
Poison_Class
3
Exposure effects
   Ingestion
Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Causes respiratory tract irritation. Vapors may cause dizziness or suffocation. Inhalation can cause headache and dryness of nose and throat.
   Skin
Causes severe skin irritation. May cause blistering of 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
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid. 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
1214
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
IAM
 
7 Aliphatic amines
HS Code
2921 19 80
 
Std. Transport #
4908186
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
S/P