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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Hydrolysis

As the substance is highly volatile it won't be present in the aqueous environment for long time. Therefore and due to the molecular structure of the substance hydrolysis is not supposed to be an important fate path within the range of environmentally relevant aquatic pH values from 5-9. This assumption is supported by a EpiSuite v4.00 model calculation indicating that the substance will hydrolyse very slowly.

Biodegradation:

1,6-Dichlorohexane is classified as not readily biodegradable in the 10-d-window and after 61 days according to OECD guideline no. 301.

Bioaccumulation:

The substance is very volatile. Consequently, the exposure of the test item to water is very low.

Further, using EPIWIN 4.1 software and the ACD/Log D Suite program for 1,6-dichlorohexane a bioconcentration factor (BCF) of 103.3 L/Kg wwt, indicating a low bioaccumulation potential.

In addition, a Mackay level I calculation gives the general impression of the likely media into which the test substance 1,6-dichlorhexanewill tend to partition and an indication of relative concentrations in each medium and compartment, respectively. Low concentrations in aquatic compartment and also in fish were calculated. Thus, a low bioaccumulation potential of the substance is expected.

Adsorption/desorption:

The adsorption/desorption coefficient (Koc) was calculated 2050.67 at pH 0-14. The log Koc was calculated 3.31 +/- 1.00.

Henry`s Law constant:

Henry's Law constant of 1,6 -dichlorohexane was 4.0E-03 atm m3/mol at 25°C (reliable literature source).