3-Butyn-2-ol
3-Butyn-2-ol
CAS: 2028-63-9
Molecular Formula: C4H6O
3-Butyn-2-ol - Names and Identifiers
| 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 |
3-Butyn-2-ol - Physico-chemical Properties
| 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. |
3-Butyn-2-ol - Risk and Safety
| 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 |
3-Butyn-2-ol - Reference Information
| 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 |
Last Update：2024-04-09 21:04:16
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