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| CAS No.: | 563-46-2 |
|---|---|
| Name: | 2-METHYL-1-BUTENE |
| Molecular Structure: | |
|
|
|
| Formula: | C5H10 |
| Molecular Weight: | 70.1344 |
| Synonyms: | 1-Isoamylene;2-Methyl-1-butene; NSC 72414; g-Isoamylene |
| EINECS: | 209-250-7 |
| Density: | 0.65g/mLat 25°C(lit.) |
| Melting Point: |
−137 °C(lit.) |
| Boiling Point: |
31 °C(lit.) |
| Flash Point: | -48 C (closed cup) |
| Solubility: | Soluble in ether, ethanol and benzene. Insoluble in water. |
| Appearance: | colourless liquid |
| Hazard Symbols: | Highly flammable, dangerous fire and explosion risk. |
| Risk Codes: | R12; R65 |
| Safety: | A simple asphyxiant. Very dangerous fire hazard when exposed to heat, flame, or oxidizers. To fight fire, use dry chemical, CO2, foam. When heated to decomposition it emits acrid smoke and irritating fumes. |
| PSA: | 0.00000 |
| LogP: | 1.97250 |
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Chemistry
IUPAC Name: 2-Methylbut-1-ene
Molecular Formula: C5H10
Molecular Weight: 70.14g/mol
Density: 0.661 g/cm3
Melting Point: 137 °C(lit.)
Boiling Point: 30.4 °C at 760 mmHg
Flash Point: -48 °C (closed cup)
Appearance: colourless liquid
Hazard Symbols: highly flammable, dangerous fire and explosion risk.
Storage Temperature: 2-8°C
Freely Rotating Bonds: 1
Polar Surface Area: 0Å2
Index of Refraction: 1.384
Molar Refractivity: 24.78 cm3
Molar Volume: 105.9 cm3
Polarizability: 9.82 ×10-24 cm3
Surface Tension: 17.3 dyne/cm
Enthalpy of Vaporization: 25.5 kJ/mol
Vapour Pressure: 627 mmHg at 25°C
2-Methbul-1-butene ,its Cas Register Number is 563-46-2.The chemical synonyms of 2-Methbul-1-butene (CAS No.563-46-2) are 1-Butene,2-methyl- ; 1-Isoamylene ; 2-Methyl-1-buten ; 2-Methyl-but-1-ene ; 2-Methylbutene-1(99%min.) ; C2H5C(CH3)=CH2 ; Gamma-Isoamylene ; 2-Methylbutene .Product categories of 2-Methbul-1-butene (CAS No.563-46-2) are Acyclic ; Alkenes ; Organic building blocks ; Alpha sort ; Hydrocarbons ; M ; MAlphabetic ; NeatsGasoline, Diesel,&Petroleum ; Olefins ; Substance clas .The molecular structure of 2-Methbul-1-butene (CAS No.563-46-2) is
.
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
A simple asphyxiant. Very dangerous fire hazard when exposed to heat, flame, or oxidizers. To fight fire, use dry chemical, CO2, foam. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes: 
F+ ,
Xn,Xi
F+: Extremely Flammable
Xn: Harmful
Xi: Irritant
Risk Statements: 12-65
65: Harmful: May cause lung damage if swallowed
12: Extremely Flammable
Safety Statements: 16-62-33-29-7/9
16: Keep away from sources of ignition - No smoking
29: Do not empty into drains
33: Take precautionary measures against static discharges
62: If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label
7/9: Keep container tightly closed and in a well-ventilated place
Specification
If inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.