Dichloroethene (DCE) PDF Print E-mail

(C2H2Cl2)

Characteristics: Dichloroethene DCE is divided into 3 isomers: 1,1-Dichloroethene, cis-1,2-Dichloroethene and trans-1,2-Dichloroethene. It is colourless, volatile, highly combustible with very strong odour and it is chemically inert. DCE has subnarcotic and highly irritating effect.

Applications: DCE is used as a solvent for waxes, resins, fats, polymers and varnishes. It was used as intermediate product for preparing other chlorinated solvents.

Toxicity: Generally dichloroethene is a compound dangerous to health. PCE can enter the body through the lungs by breathing an air with content of PCE, or through stomach, when a food with PCE is swallowed, or through skin. PCE is toxic and potential carcinogenic.

Reaction with iron: Chlorinated ethenes are toxic substances which belong to the most common pollutants in the ground water, degrading for very long time in environment. The effectiveness of chlorinated ethenes removal from water using zero-valent iron was tested by J. Hanuš, Technical University in Liberec, Czech Republic in 2009. Many thanks to Doc. Dr. Ing. Miroslav Černík, CSc. and Ing. Bc. Štěpánka Klímková for providing this information.

Following figures show reactions with nanoscale zero-valent iron ~2g/l (after 20 days since application there is still the rest of nZVI) modified by rape oil, CMC = CarboxyMethyl Cellulose nad AX = Axilate (Polyacrylic acid).

1,1-DCE reduction by modified nZVI (dry nZVI powder NANOFER 25P dispersed in oil by laboratory dispersing unit DL 05).
1,1-DCE reduction by modified nZVI slurry products NANOFER 25 and NANOFER 25S.
cis-1,2-DCE reduction by modified nZVI (dry nZVI powder NANOFER 25P dispersed in oil by laboratory dispersing unit DL 05).
cis-1,2-DCE reduction by modified nZVI slurry products NANOFER 25 and NANOFER 25S.
trans-1,2-DCE reduction by modified nZVI (dry nZVI powder NANOFER 25P dispersed in oil by laboratory dispersing unit DL 05).
trans-1,2-DCE reduction by modified nZVI slurry products NANOFER 25 and NANOFER 25S.