1,2-Butanediol Structure

1,2-Butanediol

Chemical Properties

Melting point −50 °C (−58 °F; 223 K)
alpha  -0.2~+0.2°(20℃/D)(neat)
Boiling point 195 to 196.9 °C (383.0 to 386.4 °F; 468.1 to 470.0 K) (96.5 °C at 10 mmHg)
Density  1.0023 g/cm3 (20 °C)
vapor pressure  10-2130Pa at 20℃
refractive index  1.4378 (20 °C)
Flash point 90 °C (194 °F; 363 K)
storage temp.  Storage temp. 2-8°C
pka 14.49±0.20(Predicted)
form  clear liquid
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)
EWG's Food Scores 1
FDA UNII RUN0H01QEU
EPA Substance Registry System 1,2-Butanediol (584-03-2)
UNSPSC Code 12352100
NACRES NA.22

Safety

Symbol(GHS) Exclamation Mark (GHS07)
Signal wordWarning
Hazard statements H319
Precautionary statements P264-P280-P305+P351+P338-P337+P313
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)
NFPA 704:
2
0

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1,2-Butanediol Chemical Properties,Usage,Production

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