Melting point :-1.5°C
alpha :0°(c=1, CHCl3)
Boiling point :66-67 °C/150 mmHg (lit.)
Density :0.894 g/mL at 25 °C (lit.)
vapor pressure :11hPa at 20℃
refractive index :n20/D 1.426(lit.)
Flash point :78 °F
storage temp. :Flammables area
Water Solubility :Completely miscible in water
pka :13.28±0.20(Predicted)
form :Liquid
Specific Gravity :0.894
color :Clear colorless to light yellow
BRN :635722
InChI :1S/C4H6O/c1-3-4(2)5/h1,4-5H,2H3
InChIKey :GKPOMITUDGXOSB-UHFFFAOYSA-N
SMILES :CC(O)C#C
LogP :1.1 at 35℃
CAS DataBase Reference :2028-63-9(CAS DataBase Reference)
NIST Chemistry Reference :3-Butyn-2-ol(2028-63-9)
EPA Substance Registry System :3-Butyn-2-ol (2028-63-9)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H300 Fatal if swallowed Acute toxicity,oral Category 1, 2 Danger P264, P270, P301+P310, P321, P330,P405, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting/…/equipment. P242 Use only non-sparking tools. P243 Take precautionary measures against static discharge. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P337+P313 IF eye irritation persists: Get medical advice/attention. P370+P378 In case of fire: Use … for extinction. P403+P235 Store in a well-ventilated place. Keep cool. P405 Store locked up. P501 Dispose of contents/container to..…