79-00-5

Usage

Safety Profile

Suspected carcinogen withexperimental carcinogenic data. Poison by ingestion,intravenous, and subcutaneous routes. Moderately toxicby inhalation, skin contact, and intraperitoneal routes.Experimental reproductive effects. Mutation datareported. An e

InChI:InChI=1/3C2H6.3ClH/c3*1-2;;;/h3*1-2H3;3*1H/p-3

Upstream product

• 623-68-7 trans-crotonic anhydride 
• 683-51-2 2-chloro-2-propenal 
• 75-34-3 1,1-dichloroethane 
• 540-59-0 1,2-Dichloroethylene 
• 74-85-1 ethene 
• 75-01-4 chloroethylene 
• 598-38-9 2,2-dicloroethanol 
• 79-01-6 Trichloroethylene 
• 79-24-3 Nitroethane 
• 107-06-2 1,2-dichloro-ethane 
• 74-86-2 acetylene 
• 89573-63-7 1,2-Ethanediyl Bis<(pentafluorosulfanyl)carbamate> 
• 67-66-3 chloroform 
• 157-22-2 diazirine 

Downstream Products

• 22447-21-8 1,1,2-tris-(phenylmercapto)ethane 
• 599-94-0 1,2-bis(phenylsulfonyl)ethane 
• 77753-24-3 1,1,2,3,4-pentachloro-butane 
• 77753-21-0 1,1,1,4,4-pentachloro-but-2-ene 
• 156-59-2 cis-1,2-Dichloroethylene 
• 156-60-5 trans-1,2-dichloroethylene 
• 75-35-4 1,1-Dichloroethylene 
• 540-59-0 1,2-Dichloroethylene 
• 75-01-4 chloroethylene 
• 430-66-0 1,1,2-Trifluoroethan 
• 338-65-8 1-chloro-2,2-difluoroethane 
• 79-01-6 Trichloroethylene 
• 1520-42-9 1,1,2-triphenylethane 
• 103-29-7 1,1'-(1,2-ethanediyl)bisbenzene 

Relevant academic research and scientific papers

Application of Natural Abundance 2H NMR. Simultaneous Measurement of Primary and Secondary Kinetic Deuterium Isotope Effects

Internal and external reference methods are introduced for the study of kinetic deuterium isotope effects (KDIEs) by natural abundance 2H NMR.These methods take account of both inter- and intra-molecular competitive reactions of fully protonated and naturally monodeuteriated molecules of the substrate in the reaction.Specially deuteriated compounds are not necessary using these methods.These techniques have further advantages over other methods; for example, primary and secondary KDIEs of different types can be simultaneously.The methodology is summarized and examples of its application are presented.KEY WORDS: Natural Abundance 2H NMR Isotope effects

Chlorine-catalysed Pyrolysis of 1,2-Dichloroethane. Part 2.-Unimolecular Decomposition of the 1,2-Dichloroethyl Radical and its Reverse Reaction

Fall-off curves for the unimolecular rate constant k2 of the reaction have been calculated by the Forst and RRKM methods and compared with the experimental results reported in Part 1 and by Huybrechts et al.The Forst calculations can be fitted to the Part 1 results, but then predict K2(infinite) values that lie below the experimental results of Huybrechts et al. which refer to lower temperatures and higher pressures.In contrast RRKM calculations using higher Arrhenius parameters give fall-off curves that are compatible with all available experimental data.The preferred RRKM models without allowance for the centrifugal effect have E2(infinite) ca 19.6 kcal/mol (82 kJ 1/mol) and A2(infinite) ca 1E14.0 s-1.When a reasonable centrifugal effect is allowed for the early transition state (I+/I ca 2) the preferred models have E2 ca 20.0 kcal 1/mol (84 kJ 1/mol) and A2(infinite) ca 1E14.3 s-1.Our experimental evaluations of k(p)-2 are used in conjunction with earlier experimental results and RRKM-based calculations for the reverse reaction to evaluate A-2(infinite) and E-2(infinite).

PROCESS FOR PRODUCING 1,1,2-TRICHLOROETHANE

The present disclosure relates to a process for producing 1,1,2-trichloroethane. According to the present disclosure, a process for producing 1,1,2-trichloroethane with a simplified equipment and a high reaction yield is provided.

Method for synthesizing 1,2-difluoroethane and 1,1,2-trifluoroethane

The invention relates to a method for synthesizing 1,2-difluoroethane and 1,1,2-trifluoroethane, belonging to the field of organic chemical synthesis. The method for synthesizing 1,2-difluoroethane and 1,1,2-trifluoroethane is characterized in that ethylene (with a molecular formula of CH2=CH2) and chlorine (with a molecular formula of Cl2) are heated under the action of a catalyst to generate a mixture of 1,2-dichloroethane and 1,1,2-trichloroethane, and the mixture and hydrogen fluoride (with a molecular formula HF) are heated under the action of a fluorination catalyst to generate 1,2-difluoroethane and 1,1,2-trifluoroethane. According to the method, raw materials are low in process and convenient to obtain; product separation and purification are simple; industrial production is easy;and industrial three-waste generation amount is low.

Rational design of CrOx/LaSrMnCoO6 composite catalysts with superior chlorine tolerance and stability for 1,2-dichloroethane deep destruction

1,2-dichloroethane (1,2-DCE) is a representative industrial chlorinated volatile organic compound (CVOC) making great hazardous to the environment and human health. In this work, LaSrMnCoO6 (LSMC) double perovskite-type materials with high thermal stability and coke resistance in 1,2-DCE oxidation were prepared by a facile sol-gel method. Based on this, a series of CrOx/LaSrMnCoO6 catalysts (Cr/LSMC, CrOx loading = 5 to 20 wt.%) which combine the merits of CrOx (high activity and chlorine tolerance) and LaSrMnCoO6 were synthesized and adopted in deep oxidation of 1,2-DCE for the first time. As expected, obvious synergistic effects between CrOx and LSMC on 1,2-DCE destruction were observed. Amongst, 10 wt.% CrOx/LaSrMnCoO6 (10Cr/LSMC) shows the best catalytic activity with 90% of 1,2-DCE destructed at 400 °C. Furthermore, the outstanding catalytic durability and water resistance of 10Cr/LSMC in 1,2-DCE oxidation were also demonstrated. In addition to this, the reaction pathway of 1,2-DCE decomposition over Cr/LSMC materials was discussed based on the results of online product analysis. We found that the enhanced catalytic performance of Cr/LSMC materials can be reasonably attributed to their high reducibility, excellent 1,2-DCE adsorption capability, and large amounts of surface active lattice oxygen species. It can be anticipated that the Cr/LSMC catalysts are promising materials for CVOC elimination and the results from this work could also provide some new insights into the design of catalysts for CVOC efficient destruction.

PROCESS FOR THE PRODUCTION OF CHLORINATED METHANES

The present invention provides processes for the production of chlorinated methanes via the direct chlorination of methane. The processes include a dehydrochlorination and/or chlorination step that converts up to 100% of the higher chlorinated alkanes in a process stream from the methane chlorination reaction into more highly chlorinated alkanes. These more highly chlorinated alkanes can be easily removed from the process stream. The use of a cost effective feedstream of crude methane is thus rendered possible, without additional capital expenditure for the sophisticated separation equipment required to separate ethane and other hydrocarbon components from the methane feed.

Low-temperature catalytic oxidation of vinyl chloride over Ru modified Co3O4 catalysts

Ruthenium modified cobalt oxides were prepared by (1) impregnating ruthenium chloride hydrate on cobalt oxides, Ru-supported catalysts (Ru/Co3O4), and (2) Ru-doped catalysts (Ru-Co3O4) where the ruthenium ions were added to the precursor solution, by a one-step sol-gel method with cobalt nitrate. The physicochemical properties of the catalysts were characterized by ICP, BET, XRD, HR-TEM, TPR, and XPS analysis. The effects of ruthenium were studied for the total oxidation of vinyl chloride. This Ru modifier was observed to enhance oxygenate formation. The different preparation methods made contributions to the different amounts of Ru4+ on the surfaces of the catalysts while Ru4+ would be in synergy with Co2+ concentration, and this also changed the chemical coordination of oxygen on the surface. Dispersion of Ru oxides on the cobalt oxides surface could not only improve the catalytic activity and stability on steam, but also decrease the amount of chlorinated by-products and increase HCl selectivity.

An acetylene and methylene chloride coupling reaction for preparing vinyl chloride production dichloroethylene and 1, 1, 2-trichloroethane method of

The invention relates to a method for preparing vinyl chloride and coproducing dichloroethylene and 1,1,2-trichloroethane by acetylene-dichloromethane coupled reaction, which is characterized by comprising the following steps: mixing acetylene and dichloromethane, and simultaneously carrying out dichloromethane coupled reaction and acetylene hydrochlorination on the acetylene and dichloromethane in a catalyst-filled reactor under the action of the catalyst, wherein the mole ratio of the acetylene to the dichloromethane is 0.5-2.5, the reaction temperature is 200-400 DEG C, the volumetric space velocity of the acetylene-dichloromethane gas mixture is 10-500 h, and the dichloromethane coupled reaction generates dichloroethylene, 1,1,2-trichloroethane and chlorine hydride; and further carrying out acetylene hydrochlorination on the generated chlorine hydride and acetylene to generate vinyl chloride. The method can simultaneously coproduce the dichloroethylene, 1,1,2-trichloroethane and other high-added-value products while producing vinyl chloride, and the process is more economical and has wider industrialization prospects.

REACTOR AND METHOD FOR REACTING AT LEAST TWO GASES IN THE PRESENCE OF A LIQUID PHASE

A reactor for reacting at least two gases in the presence of a liquid phase, provided with an external liquid phase circulation device and including at least one injector for injecting the gases and the externally circulated liquid phase. In the injector the mixing of the gases together and with the externally circulated liquid phase only begins at the outlet of the injector.

PROCESS FOR THE PRODUCTION OF VINYL CHLORIDE

The present invention relates to a process for the production of vinyl chloride by thermal cracking of 1,2-dichloroethane (EDC) to form a reaction mixture containing vinyl chloride (VCM), hydrogen chloride (HCI), unconverted 1,2-dichloroethane, the impurity 1,3-butadiene and other by-products in which the troublesome by-product 1,3-butadiene is removed. The reaction mixture is quenched and said vinyl chloride is separated from said mixture. Said 1,3-butadiene is removed from said quenched mixture prior to said vinyl chloride separation by reacting with chlorine added to said mixture after addition of a butadiene reduction agent to said mixture. The butadiene reduction agent is selected from the classes of compounds known to or expected to act as radical scavengers. The butadiene reduction agent is an aromatic compound selected from the groups consisting of aromatics with one or more oxygen attached to the ring. Preferably, said butadiene reduction agent is a para-substituted phenol as 4-methoxyphenol, 4-cresol or hydroquinone.