Registration Dossier
Registration Dossier
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EC number: 201-170-0 | CAS number: 79-03-8
Endpoint summary
Administrative data
Description of key information
Additional information
Adsorption/Desorption
Parent compound propionyl chloride and hydrolysis product propionic acid: Adsorption to solid soil phase is not expected.
However, the assessment of the adsorption potential of the parent compound may be of low relevance, due to the rapid hydrolysis of the acid chloride in aqueous solutions.
Henry’s Law Constant
Parent compound: From the water surface, the substance will slowly evaporate into the atmosphere.
Hydrolysis product: From the water surface, the substance will not evaporate into the atmosphere.
However, the assessment of the volatility of the parent compound may be of low relevance due to the rapid hydrolysis of the acid chloride in aqueous solutions.
Distribution modelling
Parent compound propionyl chloride: Over time the substance will preferentially distribute into the compartments air (66%) and water (34%).
However, the model calculation may be of low relevance as the compound rapidly decomposes in water (t1/2 << 24 h).
Hydrolysis product propionic acid: Over time the substance will preferentially distribute into the compartment water (98.8%). However, as the model does not consider the ionic character of the molecule at environmental relevant pH conditions, the distribution into water may be underestimated by the model.
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