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| CAS No.: | 627-19-0 |
|---|---|
| Name: | 1-Pentyne |
| Article Data: | 66 |
| Molecular Structure: | |
|
|
|
| Formula: | C5H8 |
| Molecular Weight: | 68.1185 |
| Synonyms: | 1-Pentine(3CI); Propylacetylene |
| EINECS: | 210-987-1 |
| Density: | 0.718 g/cm3 |
| Melting Point: | ?106 to ?105 °C |
| Boiling Point: | 40.9 °C at 760 mmHg |
| Flash Point: | -34°C |
| Solubility: | insoluble in water |
| Appearance: | Clear, colorless liquid |
| Hazard Symbols: | F,Xn |
| Risk Codes: | 11-36/37/38-65 |
| Safety: | Dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and irritating fumes. See also ACETYLENE COMPOUNDS and ALKYNES. |
| PSA: | 0.00000 |
| LogP: | 1.41970 |
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| Conditions | Yield |
|---|---|
| With potassium hydroxide In xylene Heating; | 94% |
| With Aliquat 336; potassium hydroxide In water at 120℃; for 7h; | 80.9% |
| With petroleum; sodium amide at 160 - 170℃; | |
| With potassium hydroxide; mineral oil at 250℃; |
- 17615-01-9
1-(triphenyl-λ5-phosphanylidene)pentan-2-one
- 627-19-0
1-Pentyne
| Conditions | Yield |
|---|---|
| at 750℃; under 0.01 Torr; | 59% |
| at 750℃; | 59% |
| Conditions | Yield |
|---|---|
| With dinitrogen tetraoxide In diethyl ether at -78℃; for 0.166667h; Product distribution; | A 57% B 30% |
| Conditions | Yield |
|---|---|
| In ammonium hydroxide at -35℃; | 56% |
| With ammonia | |
| With tetrahydrofuran; N,N-dimethyl-formamide | |
| In ammonia at -60℃; | |
| In ammonia Alkylation; |
| Conditions | Yield |
|---|---|
| With Nonafluorobutanesulfonyl fluoride; tert-butylimino-tri(pyrrolidino)phosphorane In N,N-dimethyl-formamide at -10 - 20℃; | 53% |
- 27593-24-4
hex-2-ynal
- 627-19-0
1-Pentyne
| Conditions | Yield |
|---|---|
| With sodium hydroxide In methanol at 85℃; | 40% |
| Conditions | Yield |
|---|---|
| With sodium at 100℃; Zers. des gebildeten Natriumpropylacetylens durch Wasser; |
| Conditions | Yield |
|---|---|
| With sodium at 100℃; Zers. des gebildeten Natriumpropylacetylens durch Wasser; |
- 67747-70-0
2-chloro-pent-2-ene
- 627-19-0
1-Pentyne
- 34238-52-3
3-chloro-2-pentene
- 627-19-0
1-Pentyne
- Total:24 Page 1 of 1 1
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Chemistry
IUPAC Name: 1-Pentyne
The MF of 1-Pentyne (627-19-0) is C5H8.
The MW of 1-Pentyne (627-19-0) is 68.12.
Synonyms of 1-Pentyne (627-19-0): Acetylene, propyl- ; Ethylmethylacetylene ; Pent-1-in
Product Categories: Miscellaneous;Acetylenes;Alkynes;Organic Building Blocks;Terminal
Form: Clear colorless to pale yellow liquid
Index of Refraction: 1.401
Density: 0.718 g/ml
Flash Point: -34 °C
Boiling Point: 40.9 °C
Melting Point: -106 °C
Storage temp: 2-8 °C
BRN: 1697133
Uses
1-Pentyne (627-19-0) is used as organic synthesis.
Safety Profile
Dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and irritating fumes. See also ACETYLENE COMPOUNDS and ALKYNES.
Safety information of 1-Pentyne (627-19-0):
Hazard Codes .gif){kind=small}
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Xn
Risk Statements
11 Highly Flammable
36/37/38 Irritating to eyes, respiratory system and skin
65 Harmful: May cause lung damage if swallowed
Safety Statements
16 Keep away from sources of ignition - No smoking
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36 Wear suitable protective clothing
62 If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label
RIDADR UN 3295 3/PG 2
WGK Germany 3
HazardClass 3
PackingGroup II