5658-91-3

Upstream product

• 79-01-6 Trichloroethylene 
• 7572-29-4 dichloroethyne 
• 74-86-2 acetylene 

Downstream Products

• 62897-17-0 1-Chloro-4-trichlorobut-3-en-1-ynylsulfanyl-benzene 
• 62897-26-1 tetrakis(4-chlor-phenylthio)butatrien 
• 72485-75-7 1,1,2,3,4-pentakis-(4-chloro-phenylsulfanyl)-buta-1,3-diene 
• 64672-81-7 Tetrakis(phenylthio)-1-buten-3-in 
• 62897-15-8 Trichlorobut-3-en-1-ynylsulfanyl-benzene 
• 62897-24-9 1,1,4,4-tetrakis(phenylsulfanyl)butatriene 
• 72485-76-8 1,1,2,3,4-Pentakis(phenylthio)-1,3-butadien 
• 62897-16-9 1,1,2-Trichlor-4-(4-methylphenylthio)-1-buten-3-in 
• 62897-25-0 C₃₂H₂₈S₄ 
• 72485-77-9 1,1,2,3,4-Pentakis(4-methylphenylthio)-1,3-butadien 
• 72475-34-4 1,1,2,4,4-pentakis-(4-chloro-phenylsulfanyl)-buta-1,3-diene 
• 62897-23-8 1,1,4,4-tetrakis(benzylsulfanyl)butatriene 
• 62897-18-1 (4-tert-butylphenyl)(3,4,4-trichlorobut-3-en-1-ynyl)sulfane 
• 62897-27-2 C₄₄H₅₂S₄ 

Relevant academic research and scientific papers

Copper-catalyzed chlorination and condensation of acetylene and dichloroacetylene

The chlorination and condensation of acetylene at low temperatures is demonstrated using copper chlorides as chlorinated agents coated to model borosilicate surfaces. Experiments with and without both a chlorine source and borosilicate surfaces indicate the absence of gas-phase and gas-surface reactions. Chlorination and condensation occur only in the presence of the copper catalyst. C2 through C8 organic products were observed in the effluent; PCDD/F were only observed from extraction of the borosilicate surfaces. A global reaction model is proposed that is consistent with the observed product distributions. Similar experiments with dichloroacetylene indicate greater reactivity in the absence of the copper catalyst. Reaction is observed in the gas-phase and in the presence of borosilicate surfaces at low temperatures. The formation of hexachlorobenzene is only observed in the presence of a copper catalyst. PCDD/F were only observed from extraction of the borosilicate surfaces. A global reaction model is proposed for the formation of hexachlorobenzene from dichloroacetylene. (C) 2000 Elsevier Science Ltd.

NOVEL PRODUCTS IN THE CO2-LASER INDUCED REACTION OF TRICHLOROETHYLENE

Previous report on the thermal or CO2-laser induced decomposition of trichloroethylene have identified only one condensable product, hexachlorobenzene (in addition to HCl and mono- and dichloroacetylene).We have found that trichloroethylene vapor exposed to cw irradiation on the P(24) line of the (001-100) band of the CO2 laser at incident power levels from 8-17 W procedures numerous products, of which the 13 major ones have been identified using IR, GC/MS, GC/FTIR, and NMR methods.All of these products have 4, 6, or 8 carbons, are highly unsaturated, and are completely chlorinated or contain a single hydrogen.C4HCl5 and C6Cl6 isomers (three of each) account for ca. 55percent to 85percent of total products (based on peak area in the total ion chromatograms in GC/MS runs), depending on reaction conditions.In addition to characterizing the products, we discuss the dependence of the product distribution on laser power, irradiation time, and cell geometry, and we outline a possible mechanism.