2-Butene,1-chloro-
Crotyl chloride
CAS: 591-97-9
Molecular Formula: C4H7Cl
2-Butene,1-chloro- - Names and Identifiers
| Name | Crotyl chloride |
| Synonyms | Crotyl chloride 1-chloro-2-buten 1-Chloro-2-butene 1-chlorobut-2-ene 2-butenylchloride 1-chloro-but-2-ene 2-Butene,1-chloro- 2-Butenyl chloride 1-Chloro-2-Butylene (2E)-1-Chloro-2-butene alpha-Chloro-beta-butylene |
| CAS | 591-97-9 |
| EINECS | 209-739-5 |
| InChI | InChI=1/C4H7Cl/c1-2-3-4-5/h2-3H,4H2,1H3 |
2-Butene,1-chloro- - Physico-chemical Properties
| Molecular Formula | C4H7Cl |
| Molar Mass | 90.55 |
| Density | 0.923g/mLat 20°C(lit.) |
| Melting Point | -65°C |
| Boling Point | 85-86°C(lit.) |
| Flash Point | -12°C |
| Water Solubility | 999mg/L(temperature not stated) |
| Solubility | water: soluble14g/L at 20°C |
| Vapor Presure | 80.6mmHg at 25°C |
| Appearance | clear liquid |
| Color | Colorless to Light yellow |
| Merck | 14,2130 |
| BRN | 605304 |
| Storage Condition | 0-6°C |
| Stability | Stable. Highly flammable. Incompatible with strong oxidizing agents. |
| Refractive Index | n20/D 1.430 |
| Physical and Chemical Properties | Liquid. There are two isomers. Miscible with ethanol, soluble in ether, slightly soluble in acetone and chloroform, insoluble in water. Boiling Point, ℃ relative density refractive index cis-1-chlorobutene 84.1 0.9246(20/4 ℃) 1.4390 trans-1-chlorobutene 84.8 0.9295(20/4 ℃) 1.4350 |
2-Butene,1-chloro- - Risk and Safety
| Risk Codes | R11 - Highly Flammable R22 - Harmful if swallowed R34 - Causes burns R43 - May cause sensitization by skin contact |
| 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. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2924 3/PG 2 |
| WGK Germany | 2 |
| RTECS | EM4264000 |
| FLUKA BRAND F CODES | 19 |
| HS Code | 29049090 |
| Hazard Class | 3 |
| Packing Group | II |
2-Butene,1-chloro- - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | organic synthesis. |
| Production method | A mixture of cis and trans is obtained by co-heating 1, 1-dichlorobutane with butanol and potassium hydroxide solution. |
| category | flammable liquid |
| explosive hazard characteristics | blastable when mixed with air |
| flammability hazard characteristics | flammable in case of open flame, high temperature and oxidant; Decompose toxic chloride gas when heated |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidants and acids; It is not suitable to store for a long time to prevent polymerization |
| fire extinguishing agent | dry powder, water mist, carbon dioxide, foam |
Last Update：2024-04-10 22:29:15
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