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| CAS No.: | 1120-21-4 |
|---|---|
| Name: | n-Hendecane |
| Molecular Structure: | |
|
|
|
| Formula: | C11H24 |
| Molecular Weight: | 156.312 |
| Synonyms: | Halpaclean;Hendecane;Nikko Elace;n-Undecane; |
| EINECS: | 214-300-6 |
| Density: | 0.743 g/cm3 |
| Melting Point: | -26 °C(lit.) |
| Boiling Point: | 196.3 °C at 760 mmHg |
| Flash Point: | 60 °C |
| Solubility: | immiscible with water |
| Appearance: | colourless liquid |
| Hazard Symbols: |
 Xn
|
| Risk Codes: | 36/37/38-65 |
| Safety: | 26-36-24/25 |
| Transport Information: | UN 2330 3/PG 3 |
| PSA: | 0.00000 |
| LogP: | 4.53710 |
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Chemistry
Molecular Structure of Undecane (CAS NO.1120-21-4):
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IUPAC Name: undecane
Empirical Formula: C11H24
Molecular Weight: 156.3083
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 8
Polar Surface Area: 0 Å2
Index of Refraction: 1.418
Molar Refractivity: 53.01 cm3
Molar Volume: 210.1 cm3
Surface Tension: 24.9 dyne/cm
Density: 0.743 g/cm3
Flash Point: 60 °C
Enthalpy of Vaporization: 41.48 kJ/mol
Boiling Point: 196.3 °C at 760 mmHg
Vapour Pressure: 0.564 mmHg at 25°C
EINECS: 214-300-6
Melting point: −26 °C(lit.)
Product Categories: Analytical Chemistry; n-Paraffins (GC Standard); Standard Materials for GC
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intravenous | 517mg/kg (517mg/kg) | Journal of Pharmaceutical Sciences. Vol. 67, Pg. 566, 1978. | |
| rat | LC50 | inhalation | > 442ppm/8H (442ppm) | Pharmacology and Toxicology Vol. 62, Pg. 259, 1988. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Moderately toxic by intravenous route. Flammable liquid when exposed to heat, sparks, flame, or oxidizers. To fight fire, use foam, mist, dry chemical. Emitted from modern building materials ( CENEAR Chemical and Engineering News. 69 (1991),22. ). When heated to decomposition it emits acrid smoke and irritating fumes. See also ALKANES.
Hazard Codes: 
Xn
Risk Statements: 36/37/38-65
R36/37/38:Irritating to eyes, respiratory system and skin.
R65:Harmful: may cause lung damage if swallowed.
Safety Statements: 26-36-24/25
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S24/25:Avoid contact with skin and eyes.
RIDADR: UN 2330 3/PG 3
WGK Germany: 3
RTECS: YQ1525000
HazardClass: 3
PackingGroup: III
HS Code: 29011090
Standards and Recommendations
DOT Classification: 3; Label: Flammable Liquid
Specification
Undecane , with CAS number of 1120-21-4, can be called Hendecane ; n-Undecane ; Nikko Elace ; Halpaclean. It is a colourless liquid. Undecane may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. If contacting 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. Undecane (CAS NO.1120-21-4) is used as a mild sex attractant for various types of moths and cockroaches.