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1,2-Butanediol Structure

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
storage temp.  Storage temp. 2-8°C
form  clear liquid
pka 14.49±0.20(Predicted)
color  Colorless to Light yellow
Water Solubility  100-1000g/L at 25℃
BRN  969169
Henry's Law Constant 2.1×103 mol/(m3Pa) at 25℃, Burkholder et al. (2019)
Cosmetics Ingredients Functions SOLVENT
SKIN CONDITIONING
HUMECTANT
VISCOSITY CONTROLLING
Cosmetic Ingredient Review (CIR) 1,2-BUTANEDIOL (584-03-2)
InChI 1S/C4H10O2/c1-2-4(6)3-5/h4-6H,2-3H2,1H3
InChIKey BMRWNKZVCUKKSR-UHFFFAOYSA-N
SMILES CCC(O)CO
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
TSCA  TSCA listed
HazardClass  3
PackingGroup  III
HS Code  29053995
Storage Class 10 - Combustible liquids
Hazard Classifications Eye Irrit. 2
Hazardous Substances Data 584-03-2(Hazardous Substances Data)

MSDS

Usage And Synthesis

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