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137-32-6

Name 2-Methyl-1-butanol
CAS 137-32-6
EINECS(EC#) 205-289-9
Molecular Formula C5H12O
MDL Number MFCD00004743
Molecular Weight 88.15
MOL File 137-32-6.mol

Chemical Properties

Definition The active alcohol from fusel oil. The synthetic product is a racemic mixture of both dextroand levorotatory compounds and therefore not optically active.
Appearance Amyl alcohols (pentanols) have eight isomers. All are flammable, colorless liquids, except the isomer 2,2- dimethyl-1-propanol, which is a crystalline solid.
Melting point  −70 °C(lit.)
alpha  -0.1~+0.1°(20℃/D)(neat)
Boiling point  130 °C mm Hg(lit.)
density  0.819 g/mL at 20 °C(lit.)
vapor density  3 (vs air)
vapor pressure  3 mm Hg ( 20 °C)
FEMA  3998
refractive index  n20/D 1.411
Fp  110 °F
storage temp.  Flammables area
solubility  water: slightly soluble3.6g/a00g at 30°C
form  Liquid
pka 15.24±0.10(Predicted)
color  Clear colorless to very slightly yellow
Odor at 100.00 %. ethereal fusel alcoholic fatty greasy winey whiskey leathery cocoa
PH 7 (H2O)
explosive limit 1.2-10.3%(V)
Odor Type ethereal
Water Solubility  3.6 g/100 mL (30 ºC)
JECFA Number 1199
Merck  14,6030
BRN  1718810
LogP 1.22
Uses
Solvent, organic synthesis (introduction of active amyl group), lubricants, plasticizers, additives for oils and paints.
CAS DataBase Reference 137-32-6(CAS DataBase Reference)
NIST Chemistry Reference 1-Butanol, 2-methyl-(137-32-6)
EPA Substance Registry System 137-32-6(EPA Substance)

Safety Data

Hazard Codes  Xn
Risk Statements 
R10:Flammable.
R20:Harmful by inhalation.
R37:Irritating to the respiratory system.
R66:Repeated exposure may cause skin dryness or cracking.
Safety Statements 
S46:If swallowed, seek medical advice immediately and show this container or label .
RIDADR  UN 1105 3/PG 3
WGK Germany  3
RTECS  EL5250000
Autoignition Temperature 725 °F
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29051500
Safety Profile
Moderately toxic by skin contact and intraperitoneal routes. Mddly toxic by ingestion. An eye, skin, and mucous membrane irritant. Can cause deafness, delirium, headache, nausea, and vomiting. Flammable liquid when exposed to heat, flame, or oxidizers. Explosive in the form of vapor when exposed to heat or flame. Incompatible with H2S3. To fight fire, use alcohol foam, spray, mist, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALCOHOLS.
Hazardous Substances Data 137-32-6(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 4170 mg/kg LD50 dermal Rabbit 2900 mg/kg

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