2-Methyl-1-butanol

  • sec-Butylcarbonol
  • 2-Methylbutan-1-ol
Formula
CH3CH2CH(CH3)CH2OH
Structure
Description
Colorless liquid with a sour, sharp odor.
Uses
Solvent, organic synthesis (introduction of active amyl group), in lubricants, plasticizers, additives for oils & paints.

Registry Numbers and Inventories.
CAS
137-32-6
EC (EINECS/ELINCS)
205-289-9
EC Index Number
603-006-00-7
EC Class
flammable, harmful
R 10 20
RTECS
EL5250000
RTECS class
Primary Irritant
UN (DOT)
1105
Merck
12,6109
Beilstein/Gmelin
1718810
Beilstein Reference
4-01-00-01666
Swiss Giftliste 1
G-2433
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H12O
Formula mass
88.15
Melting point, °C
-70
Boiling point, °C
129
Vapor pressure, mmHg
5 (25 C)
Vapor density (air=1)
3.0
Saturation Concentration
2704 ppm (0.27%) at 20 C; 4106 ppm (0.41%) at 25 C (calculated)
Odor Threshold Odor threshold 0.045 mg/m3
Density
0.8341 g/cm3 (0 C)
Solubility in water
30 g/L
Viscosity
3.59 cp (30 C)
Refractive index
1.4105 (20 C)
Partition coefficient, pKow
1.29
Heat of vaporization
42.7 (25 C)

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
B3 D2B
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. 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.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
43
Autoignition, °C
340
Upper exp. limit, %
10.3
Lower exp. limit, %
1.2
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Vapors mixed with air can explode when ignited. Extinguishing media: Use water spray to cool fire-exposed containers. In case of fire, use water fog, dry chemical, carbon dioxide, or regular foam.
Fire potential
HIGHLY FLAMMABLE: Will be easily 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 may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
2
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Headache, dizziness, giddiness, ataxia, sedation and coma may occur.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
   Inhalation
May cause respiratory tract irritation. Vapors may cause dizziness or suffocation.
   Skin
May cause skin irritation.
   Eyes
Vapors may cause 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. 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
1105
Response guide
Hazard class
3
Packing Group
II; III
 
USCG CHRIS Code
APM
 
20 Alcohols, Glycols
HS Code
2905 15 00
 
IMO Chemical Code
18
IMO Pollution Category
D