7581-97-7

Basic information

• Product Name: Butane, 2,3-dichloro-
• Synonyms: 2,3-Dichlorobutane
• CAS NO: 7581-97-7
• Molecular Formula: C₄H₈Cl₂
• Molecular Weight: 127.0123
• EINECS: 231-486-4
• Mol File: 7581-97-7.mol
• Article Data: 3

Chemical Properties

• Melting Point: -80℃
• Boiling Point: 117-119 °C(lit.)
• Flash Point: 65 °F
• Appearance: /
• Density: 1.107 g/mL at 25 °C(lit.)
• Vapor Pressure: 27.87mmHg at 25°C
• Refractive Index: 1.425
• Storage Temp.: Flammables area
• Water Solubility: 561.7mg/L(20 oC)
• CAS DataBase Reference: Butane, 2,3-dichloro-(CAS DataBase Reference)
• NIST Chemistry Reference: Butane, 2,3-dichloro-(7581-97-7)
• EPA Substance Registry System: Butane, 2,3-dichloro-(7581-97-7)

Safety Data

• Hazard Codes: F:Highly flammable
• Statements: R11:Highly flammable.
• Safety Statements: S16:Keep away from sources of ignition - No smoking.
• RIDADR: UN 1993 3/PG 2
• WGK Germany: 2
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 7581-97-7(Hazardous Substances Data)

Usage

Chemical Properties

clear colourless to slightly yellow liquid

InChI:InChI=1/C4H8Cl2/c1-3(5)4(2)6/h3-4H,1-2H3/t3-,4-/m0/s1

Upstream product

• 78-86-4 s-butyl chloride 
• 7782-50-5 chlorine 
• 78-00-2 tetraethyllead(IV) 
• 107-01-7 butene-2 
• 39159-99-4 threo-2-chloro-3-iodobutane 
• 39160-00-4 erythro-2-chloro-3-iodobutane 
• 310447-99-5 3,4-dichlorobut-1-ene 
• 67-56-1 methanol 
• 7664-41-7 ammonia 
• 3135-74-8 chlorourea 
• 7732-18-5 water 
• 109-69-3 n-Butyl chloride 
• 7647-18-9 antimonypentachloride 

Downstream Products

• 4461-41-0 2-chloro-but-2-ene 
• 10489-28-8 2,2-dimethyl-indan-1-one 
• 78-93-3 butanone 
• 513-85-9 2.3-butanediol 
• 106-99-0 buta-1,3-diene 
• 107-01-7 butene-2 
• 5408-86-6 2,3-dibromobutane 
• 78-76-2 s-butyl bromide 
• 19773-43-4 2-bromo-3-chloro-butane 

Relevant articles and documents

Involvement of Neighboring Chlorine in the Exchange Reactions of Iodine Monochloride and Vicinal Organic Iodochlorides

The reaction of vicinal organic iodochlorides and ICl in CCl4 at 25 deg C forms vicinal organic dichlorides and iodine.The rate law for this exchange reaction of ICl and 2-chloro-3-iodo-2,3-dimethylbutane is overall third order: second order in ICl and first order in iodochloride with a value of k3 = 7.2 +/- 0.9 M-2s-1.Stereospecific exchange occurs in the reaction ICl and erythro- and threo-2-chloro-3-iodobutane.Thus the erythro isomer forms only meso-2,3-dichlorobutane while the threo isomers form only the dl dichloride.Nonstereospecific exchange occurs in the reaction of ICl and erythro- and threo-1-chloro-2-iodo-1-phenylpropane.The data support a mechanism involving a cationic intermediate.In addition, the chlorine atom is involved in the reaction prior to the product-determining step.