1,1-Dichloroethene

Description

1,1-Dichloroethene · CAS 25323-30-2 · C2H2Cl2. UNII 21SK105J9D. Boiling Point: 89.1 °F at 760 mmHg (NTP, 1992); Boiling Point: 31.6 °C; Boiling Point: 32 °C.

Identification

CAS Registry Number	25323-30-2
PubChem CID	6366
Molecular formula	C2H2Cl2
IUPAC name	1,1-dichloroethene
UNII (FDA)	21SK105J9D

Computed Descriptors

Molecular Weight	96.94
XLogP3	2.3
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	89.1 °F at 760 mmHg (NTP, 1992)
Boiling Point	31.6 °C
Boiling Point	32 °C
Boiling Point	89.1 °F
Boiling Point	31.6 °C @760 [mm Hg]
Boiling Point	89 °F
Melting Point	-188.5 °F (NTP, 1992)
Melting Point	-122.5 °C
Melting Point	-122 °C
Melting Point	-188.5 °F

Physical description & handling notes

• Vinylidene chloride, stabilized appears as a clear colorless liquid with a chloroform-like odor. Flash point 0 °F. Boiling point 99 °F. Denser (at 10.1 lb / gal) than water and insoluble in water. Hence sinks in water. May polymerize exothermically if heated or contaminated. If the polymerization takes place inside a container, the container may rupture violently. Vapors heavier than air.
• Liquid
• Colorless liquid or gas (above 89 degrees F) with a mild, sweet, chloroform-like odor; [NIOSH]
• VOLATILE COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
• Colorless liquid or gas (above 89 °F) with a mild, sweet, chloroform-like odor.
• Colorless liquid

Regulatory Status

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
GHS notification summary	0.2% (1 / 556)

GHS Hazard Classification

GHS notification summary	0.2% (1 / 556)
Reported hazard statements	H224, H332, H351, H302, H319 (35.4%), H372 (26.6%), H412 (24.3%), H341

Documented Uses

• Vinylidene chloride is used as an intermediate for organic chemical synthesis. These copolymers are also used extensively in many types of packing materials, as flame retardant coatings for fiber and carpet backing and in piping, coating for steel pipes, and adhesive applications.
• Used as co-monomer in production of polymers for coatings, films, lacquer resins, and flame resistant binders in carpet backing; [ACGIH]
• Copolymerized with vinyl chloride or acrylonitrile to form various kinds of Saran. Other copolymers are also made. Adhesives; component of synthetic fibers.
• Vinylidene chloride is a basic material for poly(vinylidene chloride) or its copolymers with vinyl chloride, acrylonitrile, methacrylonitrile, and methacrylate. With these materials, barrier layers for food packaging are formed as well as laminated and polymer sandwich type films. ... The production of HFC-142b, a feedstock for fluoropolymer production, is another major use of VDC.
• ... Unisolated intermediate in the production of 1,1,1-trichloroethane.
• VDC is produced solely for use as a chemical intermediate primarily in the production of polyvinylidene polymers, copolymer and terpolymers. Another key application is in the production of chloroacetyl chloride. It is also used in the production of a hydrofluorocarbon.

Synonyms

Vinylidene chloride; 1,1-Dichloroethene; 1,1-DICHLOROETHYLENE; 75-35-4; Vinylidene dichloride; 1,1-Dce; Vinylidine chloride; Ethene, 1,1-dichloro-; asym-Dichloroethylene; RCRA waste number U078; Chlorure de vinylidene; DTXSID8021438; Vinylidene chloride (II); Vinylidene chloride, monomer; Vinylidene chloride (inhibited); Vinylidene chloride, inhibited

Frequently Asked Questions

What are the CAS number and molecular formula of 1,1-Dichloroethene?

CAS 25323-30-2; molecular formula C2H2Cl2; molecular weight — g/mol.

What other names is 1,1-Dichloroethene known by?

Vinylidene chloride, 1,1-Dichloroethene, 1,1-DICHLOROETHYLENE, 75-35-4, Vinylidene dichloride, 1,1-Dce.

What is the regulatory status of 1,1-Dichloroethene?

Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is 1,1-Dichloroethene classified as hazardous?

0.2% of GHS notifications report no hazard classification (1 of 556).

What are the key physical properties of 1,1-Dichloroethene?

Boiling Point: 89.1 °F at 760 mmHg (NTP, 1992); Boiling Point: 31.6 °C; Boiling Point: 32 °C; Boiling Point: 89.1 °F.

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.