Registration Dossier
Registration Dossier
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EC number: 203-996-7 | CAS number: 112-67-4
Endpoint summary
Administrative data
Description of key information
Stability
Phototransformation in air
Parent compound palmitoyl chloride and hydrolysis product palmitic acid: After evaporation or exposure to air, the substance will be slowly degraded by photochemical processes.
This estimation refers to dry air. In mist, rain, droplets and aerosols, hydrolysis will be the major fate process of the acid chloride due to the short half-life in aqueous solution. Therefore this estimate may be of low relevance.
Hydrolysis
Parent compound palmitoyl chloride: In contact with water the substance hydrolyses rapidly (t1/2 < 5 min).
Hydrolysis product palmitic acid: Palmitic acid is readily biodegradable.
Biodegradation
Parent compound palmitoyl chloride: No data
available
Hydrolysis product palmitic acid: Readily biodegradable (according to
OECD criteria)
Bioaccumulation
Parent compound Palmitoyl chloride: No data available.
Hydrolysis product Palmitic acid: Significant accumulation in organisms is not to be expected.
Transport and distribution
Adsorption
Parent compound palmitoyl chloride: no data.
Hydrolysis product palmitic acid: Adsorption to solid soil phase is expected. However, the substance is readily biodegradable.
Henry's Law Constant
Parent compound palmitoyl chloride: no data.
Hydrolysis product palmitic acid: The hydrolysis product palmitic acid will not evaporate into the atmosphere from the water surface.
Distribution modelling
Parent compound palmitoyl chloride: no data.
Hydrolysis product palmitic acid: Over time, the hydrolysis product palmitic acid will preferentially distribute into the compartment sediment (50.1%) and soil (49.5%).
Additional information
Palmitoyl chloride hydrolyses very quickly to palmitic acid (CAS 57 -10 -3) and HCl (CAS 7647 -01 -0) (t1/2 < 5 min, see IUCLID Ch. 5.1.2). Therefore, the assessment is mainly based on the hydrolysis product palmitic acid.
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