1,2-Dichloro-1,2-difluoroethylene

Base Information

• Chemical Name: 1,2-Dichloro-1,2-difluoroethylene
• CAS No.: 598-88-9
• Molecular Formula: C2Cl2F2
• Molecular Weight: 132.925
• Hs Code.: 2903780090
• European Community (EC) Number: 209-956-5,608-056-3
• UN Number: 2810
• DSSTox Substance ID: DTXSID9073206
• Nikkaji Number: J28.327D
• Mol file: 598-88-9.mol

Synonyms:1,2-DICHLORO-1,2-DIFLUOROETHYLENE;598-88-9;27156-03-2;Ethene, 1,2-dichloro-1,2-difluoro-;Ethene, dichlorodifluoro-;(E)-1,2-dichloro-1,2-difluoroethene;EINECS 209-956-5;Ethylene, 1,2-dichloro-1,2-difluoro-;1,2-dichlorodifluoroethylene;C2-Cl2-F2;311-81-9;381-71-5;1,2-Dichlorodifluoroethene;SCHEMBL33102;SCHEMBL33103;DTXSID9073206;MFCD00039332;NA9018;AKOS006223223;trans-1,2-dichloro-1,2-difluoro-ethene;A832528;A854506;Q-102558

Chemical Property of 1,2-Dichloro-1,2-difluoroethylene

Chemical Property:

• Vapor Pressure: 821mmHg at 25°C
• Melting Point: -130.5°C
• Refractive Index: 1.392
• Boiling Point: 22.824 °C at 760 mmHg
• Flash Point: -41.905 °C
• PSA: 0.00000
• Density: 1.503 g/cm³
• LogP: 2.52960
• XLogP3: 2.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 131.9345117
• Heavy Atom Count: 6
• Complexity: 67.6
• Transport DOT Label: Poison

Purity/Quality:

99% ^*data from raw suppliers

1,2-dichloro-1,2-difluoroethylene ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 23-36/37/38
• Safety Statements: 9-23-36/37/39

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C(=C(F)Cl)(F)Cl
• Isomeric SMILES: C(=C(/F)\Cl)(\F)/Cl

Technology Process of 1,2-Dichloro-1,2-difluoroethylene

There total 13 articles about 1,2-Dichloro-1,2-difluoroethylene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 98.0%

1,2,2-trichloro-1,2-difluoroethane (354-15-4) → 1,2-dichloro-1,2-difluoroethene (598-88-9)

Guidance literature:

With sodium hydroxide; tetra(n-butyl)ammonium hydroxide; In water; at 30 ℃; for 0.666667h; Product distribution / selectivity;

Reference yield: 92.0%

CFC-112a (76-12-0) → 1,2-dichloro-1,2-difluoroethene (598-88-9)

Guidance literature:

zinc; In isopropyl alcohol; at 75 - 80 ℃; for 1h; Product distribution / selectivity;

Reference yield: 90.0%

(2,2-dichloro trifluoro ethyl) trifluoro silane (54939-02-5) → 1,1'-dichloro-2,2'-difluoroethene (79-35-6) + 1,2-dichloro-1,2-difluoroethene (598-88-9) + silicon tetrafluoride (7783-61-1)

Guidance literature:

In neat (no solvent); pyrolysis at 140°C, 3 hours;;

DOI:10.1039/DT9740002509

upstream raw materials:

Dichlorofluoromethane

(2,2-dichloro trifluoro ethyl) trichloro silane

CFC-112a

Chlorotrifluoroethylene

Downstream raw materials:

1-trifluoromethoxy-1,2-dichlorotrifluoroethane

1,2-Dichloro-1-fluoro-2-trifluoromethoxy-ethane

1,2-Dichloro-1-fluoro-2-trifluoromethoxy-ethane

((E)-2-Chloro-1,2-difluoro-vinyloxy)-benzene

Refernces

• 1、 -. "At the same time, preparation of trifluoro-vinyl chloride and tetrafluoroethylene, and method". Paragraph 0054; 0055. . Retrieved 2017/03/22.
• 2、 -. "Process for preparing fluorohalogenethers". Page/Page column 10. . Retrieved 2008/06/13.