顺式1,2-二氯乙烯

Description

cis-1,2-Dichloroethylene · CAS 156-59-2 · C2H2Cl2. UNII FYO9G15JYD. Boiling Point: 140 °F at 760 mmHg (NTP, 1992); Boiling Point: 60 °C; Boiling Point: BP: 58-60 °C.

Identification

CAS Registry Number	156-59-2
PubChem CID	643833
Molecular formula	C2H2Cl2
IUPAC name	(Z)-1,2-dichloroethene
UNII (FDA)	FYO9G15JYD

Computed Descriptors

Molecular Weight	96.94
XLogP3	1.9
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	95.9533555
Monoisotopic Mass	95.9533555
Topological Polar Surface Area	0
Heavy Atom Count	4
Formal Charge	0

Physical & Chemical Properties

Boiling Point	140 °F at 760 mmHg (NTP, 1992)
Boiling Point	60 °C
Boiling Point	BP: 58-60 °C
Boiling Point	60.1 °C @760 [mm Hg]
Melting Point	-112.9 °F (NTP, 1992)
Melting Point	-80.0 °C
Melting Point	-80 °C
Flash Point	39 °F (NTP, 1992)
Flash Point	2 °C
Flash Point	6.0 °C (42.8 °F) - closed cup

Physical description & handling notes

• 1,2-dichloroethylene, (cis isomers) appears as a clear colorless liquid with an ether-like odor. Flash point 36-39 °F. Denser than water and insoluble in water. Vapors heavier than air. Used in the making of perfumes.
• Liquid
• Colorless liquid (usually a mixture of the cis & trans isomers) with a slightly acrid, chloroform-like odor; [NIOSH]
• Colorless liquid with an odor like ether; [CAMEO] Pleasant odor; [Acros Organics MSDS]
• Colorless liquid
• Sweetish

GHS Hazard Classification

Reported hazard statements	H225, H332, H412, H315, H319, H336, H402, H341

Documented Uses

• Used as a solvent and chemical intermediate; [ACGIH] Used as a refrigerant, degreaser, dry cleaning agent, and solvent for perfumes, adhesives, lacquers, oils, and resins; [HSDB] Only the trans isomer is commercially available in the US--used for precision cleaning of electronic components and a small amount used as a blowing agent for specialty foams; [EPA Toxicological Review, 2010]
• Metal Degreasing [Category: Clean]
• Semiconductor Manufacturing [Category: Industry]
• Painting (Solvents) [Category: Paint]
• Working with Glues and Adhesives [Category: Other]
• Plastic Composites Manufacturing [Category: Industry]

Synonyms

CIS-1,2-DICHLOROETHYLENE; cis-1,2-Dichloroethene; 156-59-2; (Z)-1,2-Dichloroethylene; cis-Dichloroethylene; Acetalyne dichloride; Acetylene dichloride, cis-; Ethene, 1,2-dichloro-, (Z)-; Ethylene, 1,2-dichloro-, (Z)-; cis-1,2-dce; HCC 1130c; CCRIS 4605; HSDB 5656; R 1130c; NSC 6149; Ethene, 1,2-dichloro-, (1Z)-

Frequently Asked Questions

What are the CAS number and molecular formula of cis-1,2-Dichloroethylene?

CAS 156-59-2; molecular formula C2H2Cl2; molecular weight — g/mol.

What other names is cis-1,2-Dichloroethylene known by?

CIS-1,2-DICHLOROETHYLENE, cis-1,2-Dichloroethene, 156-59-2, (Z)-1,2-Dichloroethylene, cis-Dichloroethylene, Acetalyne dichloride.

Is cis-1,2-Dichloroethylene classified as hazardous?

Hazard statements reported: H225, H332, H412, H315, H319.

What are the key physical properties of cis-1,2-Dichloroethylene?

Boiling Point: 140 °F at 760 mmHg (NTP, 1992); Boiling Point: 60 °C; Boiling Point: BP: 58-60 °C; Boiling Point: 60.1 °C @760 [mm Hg].

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.