Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
other distribution data
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: General, non-specialized publication

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Halogenated organic compound production triggered by Fe reduction in soils in the presence of iodide, presence of different halide ions and guaiacol inducement.
GLP compliance:
no
Type of study:
other: Halocarbon production in soils
Media:
soil - air

Test material

Constituent 1
Chemical structure
Reference substance name:
1-chlorobutane
EC Number:
203-696-6
EC Name:
1-chlorobutane
Cas Number:
109-69-3
Molecular formula:
C4H9Cl
IUPAC Name:
1-chlorobutane

Results and discussion

Any other information on results incl. tables

In surface peat-bog waters containing suspended organic matter were observed to produce, iodomethane, iodoethane,- propane and butane were found to be released.

Methyl halide distribution in freeze-dried versus 105°C dried samples revealed an abiotic reaction mechanism that forms alkyl halide. Organic matter is oxidized and the redox partner reduced; during the process halides are methylated and the methyl halides formed represent degradation product of oxidized organic matter.

The release rate of 1 -halobutane is smaller than the release rate of 1 -halopropane, then ethane, then methane. The increase of iron in soils increases the release of alkyl halides (emission). A fraction of soil halogen content is methylated, mostly iodide, then bromide, then chloride.

Halomethane production increased with increasing halide ion concentration in the soil.

Applicant's summary and conclusion