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
In aqueous systems, propionyl chloride (CAS 79-03-8) hydrolyses rapidly and forms HCl (CAS 7647-01-0) and propionic acid (CAS 79-09-4) (for details see section 5.1.2). Since not all endpoints can be covered by studies with the parent substance or its hydroylsis product, the structurally similar substance calcium propionate (CAS 4075 -81 -4) will be used for read across.
Acute toxicity to fish
Parent compound propionyl chloride: With high probability acutely not harmful to fish.
Hydrolysis product propionic acid: With high probability acutely not harmful to fish.
Hydrolysis product HCl: Acutely toxic for fish (pH-dependent).
Acute toxicity to aquatic invertebrates
Parent compound propionyl chloride: no data.
Hydrolysis product propionic acid (Ca propionate): With high probability acutely not harmful to aquatic invertebrates after pH-adjustment.
Hydrolysis product HCl: Acutely very toxic for aquatic invertebrates (pH-dependent)
Toxicity to aquatic algae and cyanobacteria
Parent compound propionyl chloride: no data
Hydrolysis product propionic acid (Ca propionate): With high probability acutely not harmful to aquatic algae after pH-adjustment
Hydrolysis product HCl: Acutely toxic to aquatic algae (pH-dependent)
Toxicity to microorganisms
Parent compound propionyl chloride: No data available.
Hydrolysis product propionic acid/calcium propionate: The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriately low concentrations after pH-adjustment.
Hydrolysis product HCl: No data available.
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