Isoamylene
3-Methyl-1-butene
CAS: 563-45-1
Molecular Formula: C5H10
Isoamylene - Names and Identifiers
| Name | 3-Methyl-1-butene |
| Synonyms | Isoamylene isopentene ISOAMYLENE ISOPENTENE Methylbutene Vinylisopropyl 3-Methylbutene 3-METHYLBUTENE-1 alpha-Isoamylene 3-Methylbutene-1 ALPHA-ISOPENTENE 3-METHYL-1-BUTENE 3-Methyl-1-butene 3-methylbut-1-ene ISOPROPYLETHYLENE |
| CAS | 563-45-1 |
| EINECS | 209-249-1 |
| InChI | InChI=1/C5H10/c1-4-5(2)3/h4-5H,1H2,2-3H3 |
Isoamylene - Physico-chemical Properties
| Molecular Formula | C5H10 |
| Molar Mass | 70.13 |
| Density | 0.627g/mLat 20°C(lit.) |
| Melting Point | -168 °C |
| Boling Point | 20°C(lit.) |
| Flash Point | -57 °C |
| Water Solubility | 130 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966) |
| Solubility | Soluble in alcohol, benzene, and ether (Weast, 1986) |
| Vapor Presure | 14.97 psi ( 20 °C) |
| Appearance | neat |
| Color | Colorless to Almost colorless |
| BRN | 505980 |
| pKa | >14 (Schwarzenbach et al., 1993) |
| Storage Condition | −20°C |
| Refractive Index | n20/D 1.364 |
| Physical and Chemical Properties | Melting Point:-168 Boiling Point: 20 density: 0.627 refractive index: 1.3643 |
Isoamylene - Risk and Safety
| Risk Codes | R12 - Extremely Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R65 - Harmful: May cause lung damage if swallowed |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. |
| UN IDs | UN 2561 3/PG 1 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 4.5-31 |
| Hazard Class | 3.1 |
| Packing Group | I |
Isoamylene - Reference Information
| Henry's Law Constant | (atm?m3/mol):0.535 at 25 °C (Hine and Mookerjee, 1975) |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| category | flammable liquid |
| explosive hazard characteristics | blastable when mixed with air |
| flammability hazard characteristics | flammability 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 oxidants and acids; Not easy to store for a long time to prevent polymerization |
| fire extinguishing agent | dry powder, dry sand, carbon dioxide, foam, 1211 fire extinguishing agent |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 19:55:45
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