Name | 3-Butyn-2-ol |
Synonyms | 3-butyn-2-0l 3-Butyn-2-ol 3-butyne-2-ol but-3-yn-2-ol 1-Ethynylethanol (R)-3-Butyn-2-ol 3-Hydroxy-1-butyne (2R)-but-3-yn-2-ol 3-butyn-2-olsolution 1-Methylpropargyl alcohol 1-Methyl-2-propynyl alcohol alpha-Methylpropargyl alcohol |
CAS | 2028-63-9 |
EINECS | 217-978-1 |
InChI | InChI=1/C4H6O/c1-3-4(2)5/h1,4-5H,2H3/t4-/m1/s1 |
Molecular Formula | C4H6O |
Molar Mass | 70.09 |
Density | 0.894 g/mL at 25 °C (lit.) |
Melting Point | -1.5°C |
Boling Point | 66-67 °C/150 mmHg (lit.) |
Specific Rotation(α) | 0°(c=1, CHCl3) |
Flash Point | 78°F |
Water Solubility | Completely miscible in water |
Vapor Presure | 11hPa at 20℃ |
Appearance | Liquid |
Specific Gravity | 0.894 |
Color | Clear colorless to light yellow |
BRN | 635722 |
pKa | 13.28±0.20(Predicted) |
Storage Condition | Flammables area |
Refractive Index | n20/D 1.426(lit.) |
Physical and Chemical Properties | The product is colorless to light yellow liquid. The relative density was 895. |
Risk Codes | R10 - Flammable R25 - Toxic if swallowed R36/38 - Irritating to eyes and skin. R36/37/38 - Irritating to eyes, respiratory system and skin. R24/25 - |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S16 - Keep away from sources of ignition. |
UN IDs | UN 2929 6.1/PG 2 |
WGK Germany | 3 |
RTECS | ES0709800 |
FLUKA BRAND F CODES | 10 |
TSCA | Yes |
HS Code | 29052900 |
Hazard Note | Irritant |
Hazard Class | 6.1 |
Packing Group | II |
LogP | 1.1 at 35℃ |
NIST chemical information | Information provided by: webbook.nist.gov (external link) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
application | 3-butyne-2-ol is widely used in pharmaceutical intermediates, carbonyl compounds, adhesive agents and peroxidation catalysts, as modifiers for synthetic resins, electroplating additives, and resin-deep couplers for textiles and paper. |
category | flammable liquid |
toxicity classification | highly toxic |
acute toxicity | oral-mouse LD50: 30 mg/kg |
flammability hazard characteristics | it is more flammable in case of open flame, high temperature and oxidant; Combustion produces stimulating smoke |
storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidant; Not suitable for long storage to prevent polymerization |
fire extinguishing agent | dry powder, dry sand, carbon dioxide, foam, 1211 fire extinguishing agent |