| Identification | More | [Name]
2-Butyn-1-ol | [CAS]
764-01-2 | [Synonyms]
2-BUTYN-1-OL
2-BUTYNE-1-OL
BUT-2-IN-1-OL
HYDROXYMETHYLMETHYLACETYLENE
2-butyn-1-0l
2-Butynol
2-Butynyl alcohol
But-2-yn-1-ol
CH3CequivCCH2OH
2-Butyne-1-ol, 98+%
2-Butyn-1-ol,98%
2-BUTYN-1-OL 99%
1-hydroxy-2-butyne
1-(Hydroxymethyl)-2-methylacetylene | [EINECS(EC#)]
212-113-4 | [Molecular Formula]
C4H6O | [MDL Number]
MFCD00002914 | [Molecular Weight]
70.09 | [MOL File]
764-01-2.mol |
| Chemical Properties | Back Directory | [Appearance]
liquid | [Melting point ]
-2.2 °C (lit.) | [Boiling point ]
142-143 °C (lit.) | [density ]
0.937 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.453(lit.)
| [Fp ]
125 °F
| [storage temp. ]
Refrigerator | [solubility ]
Miscible with chloroform and methanol. | [form ]
Liquid | [pka]
13.14±0.10(Predicted) | [color ]
Clear colorless to light yellow | [Specific Gravity]
0.937 | [Stability:]
Stable. Flammable. | [BRN ]
1733676 | [InChI]
1S/C4H6O/c1-2-3-4-5/h5H,4H2,1H3 | [InChIKey]
NEEDEQSZOUAJMU-UHFFFAOYSA-N | [SMILES]
CC#CCO | [CAS DataBase Reference]
764-01-2(CAS DataBase Reference) | [NIST Chemistry Reference]
2-Butyn-1-ol(764-01-2) |
| Questions And Answer | Back Directory | [Synthesis]
P-Toluenesulfonic acid (3.30 g, 17.4 mmol, 0.1 equivalence) was added to a THP-protected solution of 2-butyn-1-ol (174 mmol) in methanol (solvent grade, 139 ml), and the reaction mixture was stirred overnight. Potassium carbonate (2.40 g, 17.4 mmol, 0.1 equivalence) was added to the reaction mixture, and the resulting suspension was stirred for 30 minutes. The solids were removed by filtration, and the solvent was evaporated under reduced pressure. The residue was purified by distillation (76 mbar, oil bath temperature 120 °C) to obtain the target product. 
|
| Safety Data | Back Directory | [Symbol(GHS) ]
 
GHS02,GHS07 | [Signal word ]
Warning | [Hazard statements ]
H226-H315-H319-H335 | [Precautionary statements ]
P210-P302+P352-P305+P351+P338 | [Hazard Codes ]
Xi,F | [Risk Statements ]
R10:Flammable.
R43:May cause sensitization by skin contact.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S36/37:Wear suitable protective clothing and gloves .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S16:Keep away from sources of ignition-No smoking . | [RIDADR ]
UN 1987 3/PG 3
| [WGK Germany ]
3
| [Hazard Note ]
Irritant | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
29052990 | [Storage Class]
3 - Flammable liquids | [Hazard Classifications]
Eye Irrit. 2
Flam. Liq. 3
Skin Irrit. 2
STOT SE 3 |
| Hazard Information | Back Directory | [Chemical Properties]
liquid | [Uses]
2-Butyn-1-ol is used in the synthesis of homocoupling products. It is also used to inhibit corrosion of iron in acidic solution. |
|
|