683-68-1

Basic information

• Product Name: 1,2-DIBROMO-1,2-DICHLOROETHANE
• Synonyms: dibromodichloroethane;ethane,1,2-dibromo-1,2-dichloro-;1,2-DIBROMOETHYLENE DICHLORIDE;1,2-DICHLOROETHYLENE DIBROMIDE;1,2-DIBROMO-1,2-DICHLOROETHANE;1,2-Dibromoethylene Dichloride 1,2-Dichloroethylene Dibromide;1,2-Dichloro-1,2-dibromoethane
• CAS NO: 683-68-1
• Molecular Formula: C₂H₂Br₂Cl₂
• Molecular Weight: 256.75
• Mol File: 683-68-1.mol
• Article Data: 1

Chemical Properties

• Melting Point: -27 °C
• Boiling Point: 195 °C
• Appearance: /
• Density: 2.1350
• Refractive Index: 1.5662 (estimate)
• CAS DataBase Reference: 1,2-DIBROMO-1,2-DICHLOROETHANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-DIBROMO-1,2-DICHLOROETHANE(683-68-1)
• EPA Substance Registry System: 1,2-DIBROMO-1,2-DICHLOROETHANE(683-68-1)

Safety Data

• Hazardous Substances Data: 683-68-1(Hazardous Substances Data)

Usage

General Description

1,2-Dibromo-1,2-dichloroethane is a chemical compound with the formula C2H2Br2Cl2. It is a colorless liquid with a sweet odor and is primarily used as a soil fumigant and pesticide. It is highly toxic and has been banned in many countries due to its harmful effects on human health and the environment. Exposure to 1,2-dibromo-1,2-dichloroethane can cause irritation to the skin, eyes, and respiratory system, as well as more severe symptoms such as liver and kidney damage, and even death in high doses. The compound is also a known carcinogen, and prolonged exposure has been linked to an increased risk of cancer. Due to its toxic nature, strict regulations and safety measures are in place for handling and storing this chemical.

Upstream product

• 540-59-0 1,2-Dichloroethylene 
• 540-49-8 cis+trans-dibromoethylene 
• 74-86-2 acetylene 
• 79-34-5 1,1,2,2-tetrachloroethane 
• 156-60-5 trans-1,2-dichloroethylene 
• 7726-95-6 bromine 
• 107-06-2 1,2-dichloro-ethane 
• 7647-18-9 antimonypentachloride 

Downstream Products

• 430-88-6 1-bromo-1,2-dichloro-2-fluoro-ethane 
• 430-89-7 1-bromo-1-chloro-2,2-difluoro-ethane 
• 540-59-0 1,2-Dichloroethylene 
• 6795-75-1 (Z)-1-bromo-1,2-dichloro-ethene 
• 157672-80-5 trans-form of 1.2-dichloro-1-bromo-ethene 
• 471-43-2 1,1-dichloro-2,2-difluoroethane 
• 359-28-4 1,1,2-trichloro-2-fluoroethane 
• 593-63-5 chloroacetylene 

Relevant articles and documents

Intramolecular Geminal and Vicinal Element Effects in Substitution of Simple Bromo(chloro)alkenes by Methoxide and Thiolate Ions. An Example of a Single Step Substitution?

Intramolecular element effects kBr/kCl for substitution of geminal bromochloroalkenes BrC(Cl)=C-(Br)Cl (1), BrC(Cl)=CCl2 (2), Me2C=C(Br)Cl (3), and XCH=C(Br)Cl (X = Cl, 4; X = Br, 5), with MeO- and RS- nucleophiles were investigated. 3 did not give substitution, and 4 and 5 gave substitution with MeO- via an initial elimination (to acetylene)-addition route, followed by further reactions. In reactions of 4 with thiolates, geminal element effects of 2-10 were obtained. Formation of RSC(Cl)=C(Cl)Y, Y = SR, Br, is ascribed to an initial halophilic reaction, followed by addition of RSCl to the formed acetylene. Reaction of 2 with MeO- gave a high vicinal element effect, and RS- gave a high geminal element effect. Reaction of 1 with both MeO- and RS- ions gave high (2 orders of magnitude) geminal element effects, which were interpreted as indicating a rate-determining C-X bond cleavage. This is supported by the high kBr/kCl intermolecular element effects (k(1)/k(Cl2C=CCl2) with MeO- and PhCH2S- ions. Mechanistic alternatives based on these observations are discussed.