Di-2-butylamine

  • N-sec-Butyl-2-butanamine
  • Bis(sec-butyl)amine
  • Bis(1-methylpropyl)amine
  • N-(1-Methylpropyl)-2-butanamine
Formula
[CH3CH2CH(CH3)]2NH
Structure
Description
Colorless liquid with the strong, fishy, ammonia-like odor characteristic of amines.
Uses
Used as a raw material for herbicides (such as thiocarbazides); pharmaceuticals; corrosion inhibitors; vulcanization accelerators; flotation agents; and dyes.

Registry Numbers and Inventories.
CAS
626-23-3
EC (EINECS/ELINCS)
210-937-9
EC Index Number
612-049-00-0
EC Class
Flammable; Harmful
R 10 20/21/22
UN (DOT)
2733
Beilstein/Gmelin
4088731
Swiss Giftliste 1
G-5968
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H19N
Formula mass
129.25
Melting point, °C
-70
Boiling point, °C
134
Vapor pressure, mmHg
7.1 (25 C)
Critical temperature
484
Critical pressure
25.8
Density
0.753 g/cm3 (20 C)
Solubility in water
Very soluble
Surface tension
23.28 g/s2 (15 C)
Refractive index
1.4162 (20 C)
pKa/pKb
3.88 (pKb)
Partition coefficient, pKow
2.39
Heat of vaporization
37.5 kJ/mol
Heat of combustion
-1836 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Make no contact with the spilled material. Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Disposal code
5
Stability
No data.

Fire.
Flash Point,°C
19
Fire fighting
Small Fires: Dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Large Fires: Water spray, fog or alcohol-resistant foam.
Fire potential
Flammable/combustible material. May be ignited by heat, sparks or flames.
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
Fire will produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
3
 
 
Reactivity
0
 

Health.
Poison_Class
3
Exposure effects
   Ingestion
May cause toxic effects.
   Inhalation
Vapors may cause dizziness or suffocation. May cause toxic effects.
   Skin
Contact with substance may cause severe burns.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes. Wash skin with soap and water.
   Eyes
In case of contact with substance, immediately flush with running water for at least 20 minutes.

Transport.
UN number
2733
Response guide
Hazard class
3
Packing Group
I; II; III
 
7. Aliphatic amines
HS Code
2921 19 80