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| CAS No.: | 1758-33-4 |
|---|---|
| Name: | CIS-2,3-EPOXYBUTANE |
| Molecular Structure: | |
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|
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| Formula: | C4H8 O |
| Molecular Weight: | 72.1069 |
| Synonyms: | Butane,2,3-epoxy-, cis- (8CI); Oxirane, 2,3-dimethyl-, cis-; cis-2,3-Butylene oxide;cis-2,3-Dimethyloxirane; cis-2,3-Epoxybutane; cis-2-Butene epoxide;cis-2-Butene oxide; cis-2-Butylene oxide |
| Density: | 0.826 |
| Melting Point: | -84--83 ºC |
| Boiling Point: | 60-61 ºC |
| Flash Point: | -21.7 ºC |
| Solubility: | Soluble in water, 2.848e+004 mg/L. |
| Hazard Symbols: |
 
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| Risk Codes: | R11;R20/21/22;R36/37/38 |
| Safety: | Mutation data reported. When heated to decomposition it emits acrid smoke and irritating vapors. |
| Transport Information: | UN 3271 |
| PSA: | 12.53000 |
| LogP: | 0.79360 |
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Chemistry
Chemistry informtion about Cis-2,3-Epoxybutane (CAS NO.1758-33-4) is:
IUPAC Name: (2S,3R)-2,3-dimethyloxirane
Synonyms: (2s,3r)-2,3-Dimethyl-Oxirane ; 2,3-Dimethyl-Oxirane (Z) ; 3-Dimethyl-Cis-Oxiran ; 3-Epoxy-Cis-Butan ; Butane, 2,3-Epoxy-, Cis- ; Cis-2,3-Dimethyloxirane ; Cis-2-Butene Epoxide ; Cis-2-Butene Oxide
Product Categories: Organics
MF: C4H8O
MW: 72.11
Density: 0.855 g/cm3
Melting Point: −84-−83 °C(lit.)
Flash Point: −7 °F
Boiling Point: 56.5 °C at 760 mmHg
Vapour Pressure: 239 mmHg at 25°C
Enthalpy of Vaporization: 28.69 kJ/mol
Refractive Index: n20/D 1.383(lit.)
Storage temp.: Flammables area
Sensitive: Moisture Sensitive
BRN: 79770
Following is the molecular structure of Cis-2,3-Epoxybutane (CAS NO.1758-33-4) is:
Toxicity Data With Reference
| 1. | mmo-sat 100 µmol/plate | MUREAV Mutation Research. 231 (1990),205. | ||
| 2. | sce-ham:lng 12,500 mol/L | MUREAV Mutation Research. 249 (1991),55. |
Safety Profile
Mutation data reported. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes:
F
Xi
Xn
Risk Statements:
R11:Highly flammable.
R36/37/38:Irritating to eyes, respiratory system and skin.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements:
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.
RIDADR: UN 3271 3/PG 2
WGK Germany: 3
RTECS: EK3855020
F:
F 21: Sensitive to humidity.
HazardClass: 3
PackingGroup: II
Specification
Cis-2,3-Epoxybutane (CAS NO.1758-33-4) is a clear colourless liquid.
First Aid Measures:
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin: Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: Get medical aid. Wash mouth out with water.
Inhalation: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician: Treat symptomatically and supportively.
Handling and Storage
Handling: Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation. Use only in a chemical fume hood.
Storage: Keep away from sources of ignition. Store in a cool, dry place. Keep container closed when not in use. Flammables-area. Store under an inert atmosphere. May form explosive peroxides on prolonged storage.