顺-1,4-二氯-2-丁烯

Description

cis-1,4-Dichloro-2-butene · CAS 1476-11-5 · C4H6Cl2. UNII NS00079386. Boiling Point: 313 °F at 760 mmHg (USCG, 1999); Boiling Point: 158 °C; Boiling Point: 158 °C @760 [mm Hg].

Identification

CAS Registry Number	1476-11-5
PubChem CID	15122
Molecular formula	C4H6Cl2
IUPAC name	1,4-dichlorobut-2-ene
UNII (FDA)	NS00079386

Computed Descriptors

Molecular Weight	124.99
XLogP3	1.7
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	2
Exact Mass	123.9846556
Monoisotopic Mass	123.9846556
Topological Polar Surface Area	0
Heavy Atom Count	6
Formal Charge	0

Physical & Chemical Properties

Boiling Point	313 °F at 760 mmHg (USCG, 1999)
Boiling Point	158 °C
Boiling Point	158 °C @760 [mm Hg]
Melting Point	-54 °F (USCG, 1999)
Melting Point	3.5 °C
Density	1.1858
Density	1.185 No temp
Vapor Pressure	3.0 [mmHg]
Vapor Pressure	3 mm Hg @ 25 °C
Vapor Pressure	3 [mm Hg] @25 °C

Physical description & handling notes

• 1,4-dichloro-2-butene appears as a clear colorless liquid. Burns, though may be difficult to ignite. Corrosive to tissue. Denser than water and insoluble in water. Vapors heavier than air. Used to make other chemicals.
• Liquid
• Colorless liquid with a sweet, pungent odor; [HSDB] Yellowish liquid; [OECD SIDS]
• Colorless liquid
• Sweet, pungent
• Miscible with benzene, alc, carbon tetrachloride; immiscible with ethylene glycol and glycerol.

GHS Hazard Classification

Reported hazard statements	H301, H311, H314, H330, H350, H400, H410, H226 (47.5%)

Documented Uses

• Used as an intermediate in chemical manufacturing; [HSDB] Continuously manufactured and processed in closed systems and essentially used 100% as an intermediate; [OECD SIDS]
• CHEM INT FOR 3,4-DICHLORO-1-BUTENE (A CHLOROPRENE INT), ADIPONITRILE (A HEXAMETHYLENEDIAMINE INT) & CHEM INT FOR 1,4-BUTANEDIOL (NON-US USE).
• 1,4-Dichloro-2-butene is used for resolving oil-in-water emulsions.
• Used as an intermediate in the production of chloroprene ... is a starting material in the production of adiponitrile, butane-1,4-diol, and tetrahydrofuran.
• From 1951 to 1983 DuPont operated a butadiene chlorination process ... the intermediate 1,4-dichloro-2-butene was converted to 3-hexenedinitrile ... and then hydrogenated to adiponitrile.
• The isomers 3,4-dichlorobutene, cis-1,4-dichlorobutene & trans-1,4-dichlorobutene are produced /by the reaction of chlorine & butadiene/, & when the mixture is heated, an equilibrium results. The residue resulting from removal of the 3,4-isomer ... is normally used without further separation.

Synonyms

1,4-Dichlorobut-2-ene; 1,4-DICHLORO-2-BUTENE; 764-41-0; DTXSID9027310; 2-Butene, 1,4-dichloro-; 2-Butylene dichloride; 1,4-Dichloro-2-butylene; DTXCID4028123; RefChem:416736; 212-121-8; 1,4-DCB; 1,4-Dichlorobutene-2; 1476-11-5; 1,4-Dichloro-2-butene (cis+trans); ClCH2CH=CHCH2Cl; 1,4-Dichlorobutene-2 (65% trans-, 35% cis-)

Frequently Asked Questions

What are the CAS number and molecular formula of cis-1,4-Dichloro-2-butene?

CAS 1476-11-5; molecular formula C4H6Cl2; molecular weight — g/mol.

What other names is cis-1,4-Dichloro-2-butene known by?

1,4-Dichlorobut-2-ene, 1,4-DICHLORO-2-BUTENE, 764-41-0, DTXSID9027310, 2-Butene, 1,4-dichloro-, 2-Butylene dichloride.

Is cis-1,4-Dichloro-2-butene classified as hazardous?

Hazard statements reported: H301, H311, H314, H330, H350.

What are the key physical properties of cis-1,4-Dichloro-2-butene?

Boiling Point: 313 °F at 760 mmHg (USCG, 1999); Boiling Point: 158 °C; Boiling Point: 158 °C @760 [mm Hg]; Melting Point: -54 °F (USCG, 1999).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.