Basic information
- Name:
1,4-Dichloro-2-butyne
- CAS No.:
821-10-3
- Molecular Structure:
- Formula:
- C4H4Cl2
- Molecular Weight:
- 122.98
- Synonyms:
- 2-Butyne, 1,4-dichloro-;1,4-Dichlorobutyne;4-01-00-00973 (Beilstein Handbook Reference);1,4-Dichlorobut-2-yne;
- EINECS:
- 212-474-8
- Density:
- 1.222 g/cm3
- Boiling Point:
- 165.5 °C at 760 mmHg
- Flash Point:
- 70.7 °C
- Hazard Symbols:
Xi,
T- Risk Codes:
- 36/37/38-40-23/24/25
- Safety Description:
- 26-36-45-38-36/37/39-28A Details
- Transport Information:
- UN 2810
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Chemistry
Molecular Formula:C4H4Cl2
Molar mass:122.98056g/mol
Structure of 1,4-Dichloro-2-butyne(821-10-3):
Synonyms of 1,4-Dichloro-2-butyne(821-10-3):1,4-DICHLORO-2-BUTYNE;1,4-Dichlorobutyne;
2-Butyne, 1,4-dichloro-;1,4-Dichlorobut-2-yne
Density:1.222 g/cm3
Flash Point:70.7 °C
Boiling Point:165.5 °C at 760 mmHg
Index of Refraction:1.474
Vapour Pressure:2.46 mmHg at 25°C
Melting point:165-168°C
storage temp:2-8°C
Sensitive:Light Sensitive
Molar mass:122.98056g/mol
Structure of 1,4-Dichloro-2-butyne(821-10-3):
Synonyms of 1,4-Dichloro-2-butyne(821-10-3):1,4-DICHLORO-2-BUTYNE;1,4-Dichlorobutyne;
2-Butyne, 1,4-dichloro-;1,4-Dichlorobut-2-yne
Density:1.222 g/cm3
Flash Point:70.7 °C
Boiling Point:165.5 °C at 760 mmHg
Index of Refraction:1.474
Vapour Pressure:2.46 mmHg at 25°C
Melting point:165-168°C
storage temp:2-8°C
Sensitive:Light Sensitive
Toxicity Data With Reference
| 1. | ivn-mus LD50:56 mg/kg | CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#02969 . |
Other: The toxicological properties have not been fully investigated.See actual entry in RTECS for complete information.
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Poison by intravenous route. When heated to decomposition it emits toxic fumes of Cl−. Probably a dangerous fire and explosion hazard.See also ACETYLENE COMPOUNDS and ALKYNES and CHLORINATED HYDROCARBONS, ALIPHATIC.
Hazard Codes:Xi
,T
Risk Statements:
23: Toxic by inhalation
24: Toxic in contact with skin
25: Toxic if swallowed
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
39: Danger of very serious irreversible effects
40: Limited evidence of a carcinogenic effect
Safety Statements:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
28: After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
36: Wear suitable protective clothing
37: Wear suitable gloves
38: In case of insufficient ventilation, wear suitable respiratory equipment
39: Wear eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
Hazard Codes:Xi
,TRisk Statements:
23: Toxic by inhalation
24: Toxic in contact with skin
25: Toxic if swallowed
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
39: Danger of very serious irreversible effects
40: Limited evidence of a carcinogenic effect
Safety Statements:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
28: After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
36: Wear suitable protective clothing
37: Wear suitable gloves
38: In case of insufficient ventilation, wear suitable respiratory equipment
39: Wear eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
Specification
Stability and Reactivity of 1,4-Dichloro-2-butyne(821-10-3):
Conditions to Avoid:Incompatible materials, light.
Incompatibilities with Other Materials:strong bases,strong oxidizing agents.
Hazardous Decomposition Products: carbon dioxide,hydrogen bromide,Carbon monoxide.
Conditions to Avoid:Incompatible materials, light.
Incompatibilities with Other Materials:strong bases,strong oxidizing agents.
Hazardous Decomposition Products: carbon dioxide,hydrogen bromide,Carbon monoxide.
