3-METHYL-2-BUTANOL Chemical Properties

Melting point:

-51.44°C (estimate)

Boiling point:

112 °C (lit.)

Density 

0.818 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.409(lit.)

FEMA 

3703 | 3-METHYL-2-BUTANOL

Flash point:

80 °F

storage temp. 

Flammables area

solubility 

56g/l

form 

Liquid

pka

15.17±0.20(Predicted)

color 

Clear colorless

Odor

fruity

Odor Type

fruity

explosive limit

1.2-10.5%(V)

Water Solubility 

Miscible in Ether, Alcohols. Slightly soluble in water. (2.8g/100mL, 30°C)

Merck 

14,6031

JECFA Number

300

BRN 

1718800

Exposure limits

NIOSH: IDLH 500 ppm; TWA 100 ppm(360 mg/m3); STEL 125 ppm(450 mg/m3)

LogP

1.04

CAS DataBase Reference

598-75-4(CAS DataBase Reference)

EPA Substance Registry System

2-Butanol, 3-methyl- (598-75-4)

Safety Information

Hazard Codes 

Xn

Risk Statements 

10-20-37-66

Safety Statements 

46

RIDADR 

UN 1105 3/PG 3

OEB

A

OEL

TWA: 100.0 ppm; 360.0 mg/m3, STEL: 125.0 ppm; 450.0 mg/m3

WGK Germany 

1

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29051490

MSDS

• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

3-METHYL-2-BUTANOL Usage And Synthesis

Chemical Properties

CLEAR COLOURLESS LIQUID

Chemical Properties

Amyl alcohols (pentanols) have eight isomers. All are flammable, colorless liquids, except the isomer 2,2- dimethyl-1-propanol, which is a crystalline solid.

Chemical Properties

3-Methyl-2-butanol has a fruity, fresh odor.

Uses

3-Methyl-2-butanol has been used as a reference for microbially produced, volatile organic compounds (MVOC) in GC-MS analyses.

Uses

A flotation agent, a solvent, and in organic synthesis.

Definition

ChEBI: A secondary alcohol that is 2-butanol carrying an additional methyl substituent at position 3.

Hazard

Moderately toxic.

Potential Exposure

(n-isomer); Suspected reprotoxic hazard, Primary irritant (w/o allergic reaction), (iso-, primary): Possible risk of forming tumors, Primary irritant (w/o allergic reaction), (sec-, active primary-, and other isomers) Primary irritant (w/o allergic reaction). Used as a solvent in organic synthesis and synthetic flavoring, pharmaceuticals, corrosion inhibitors; making plastics and other chemicals; as a flotation agent. The (n-isomer) is used in preparation of oil additives, plasticizers, synthetic lubricants, and as a solvent.

Shipping

UN2811 Pentanols, Hazard Class: 3; Labels: 3- Flammable liquid. UN1987 Alcohols, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid.

Purification Methods

Reflux it with magnesium, then fractionally distil it. [Beilstein 1 IV 1675.]

Incompatibilities

Forms an explosive mixture with air. Contact with strong oxidizers and hydrogen trisulfide may cause fire and explosions. Incompatible with strong acids. Violent reaction with alkaline earth metals forming hydrogen, a flammable gas.

Waste Disposal

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

3-METHYL-2-BUTANOL(598-75-4)Related Product Information

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• (R)-2-[3-(3-METHOXYPROPOXY)-4-METHOXYBENZYL]-3-METHYL-1-BUTANOL
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