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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Butyl chloroformate rapidly hydrolyses in contact with water to form butanol (CAS 71 -36 -3), hydrogen chloride (CAS 7647-01-0) and carbon dioxide (CAS 124-38-9). Due to this rapid hydrolysis, the assessment of most environmental fate parameters for the parent compound in aqueous/moist environments is considered to be of low relevance.

Phototransformation

After evaporation or exposure to the air, the parent substance will be slowly degraded by photochemical processes. This assessment refers to dry air. In mist, rain, droplets and aerosols,

hydrolysis will be the major fate process due to the short half-life in aqueous environments. Therefore this estimate may be of low relevance.

Hydrolysis

Butyl chloroformate will rapidly hydrolyse in contact with water to form butanol (CAS 71 -36 -3), hydrogen chloride (CAS 7647-01-0) and carbon dioxide (CAS 124-38-9). Therefore, for all

environmental compartments except air, available data on the environmental fate and pathways of the hydrolysis products is provided.

Biodegradation

The substance is readily biodegradable (by OECD criteria)..

Bioaccumulation

Accumulation in organisms is not to be expected.

Adsorption / desorption

Adsorption of the substance to the solid soil phase is not expected.

Henry's Law constant

The hydrolysis product butanol will slowly evaporate into the atmosphere from the water surface.

Distribution modelling

Over time, the uncharged hydrolysis product butanol will preferentially distribute into the compartment water (73.3%) and air (26.6%).