1,2-BUTANEDIOL Chemical Properties

Melting point:

-50 °C

Boiling point:

191-192 °C/747 mmHg (lit.)

alpha 

-0.2～+0.2°(20℃/D)(neat)

Density 

1.006 g/mL at 25 °C (lit.)

vapor pressure 

10-2130Pa at 20℃

refractive index 

n20/D 1.438(lit.)

Flash point:

200 °F

pka

14.49±0.20(Predicted)

form 

clear liquid

color 

Colorless to Light yellow

Water Solubility 

100-1000g/L at 25℃

BRN 

969169

LogP

-0.34-0.3 at 25℃

CAS DataBase Reference

584-03-2(CAS DataBase Reference)

EPA Substance Registry System

1,2-Butanediol (584-03-2)

Safety Information

Safety Statements 

24/25

RIDADR 

1993

WGK Germany 

2

RTECS 

EK0380000

HazardClass 

3

PackingGroup 

III

HS Code 

29053995

Hazardous Substances Data

584-03-2(Hazardous Substances Data)

MSDS

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

1,2-BUTANEDIOL Usage And Synthesis

Chemical Properties

clear colorless liquid

Uses

1,2-Butanediol was used in the synthesis of (R)-2-hydroxybutyric acid.

Definition

ChEBI: A butanediol in which the two hydroxy groups are located at positions 1 and 2.

Flammability and Explosibility

Non flammable

Safety Profile

Moderately toxic by ingestion. Combustible when exposed to heat or flame. To fight fire, use alcohol foam. When heated to decomposition it emits acrid and irritating fumes.

1,2-BUTANEDIOL(584-03-2)Related Product Information

• 1,4-Benzenedicarboxylicacid,dimethylester,polymerwith1,4-butanedio
• 2-Oxepanone,polymerwith1,4-butanedio
• (S)-(-)-2-METHYL-1,4-BUTANEDIOL,(S)-2-METHYL-1,4-BUTANEDIOL
• 2,3-butanediol (meso)
• 1,3-Butanediol, polymer with .alpha.-butyl-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) and 1,3-diisocyanatomethylbenzene
• 1,4-Butanediol, polymer with 1,1'-methylenebis(4-isocyanatobenzene) (9CI)
• (S)-1,3-BUTANEDIOL,(S)-(+)-1,3-BUTANEDIOL
• 1,4-dimercapto-,(theta,theta)-(+/-)-3-butanedio
• 1,4-Butanediol bis(gamma-aminopropyl) ether
• (r*,s*)-1,4-dimercapto-2,3-butanedio
• 1,3-Butanediol
• (S)-(-)-N-Boc-2-Amino-1,4-butanediol
• (S,S)-(+)-2,3-BUTANEDIOL,(S,S)-2,3-BUTANEDIOL
• 1,1,4,4-Tetramethyl-1,4-butanediol
• 1,4-Butanediol,p,p-diphenylmethanediisocyanate,polytetramethyletherglycolpolyme
• 1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,4-butanediol and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl)
• 3-Methyl-1,3-butanediol
• Hexanedioicacid,polymerwith1,4-butanedio