Registration Dossier
Registration Dossier
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EC number: 200-865-6 | CAS number: 75-36-5
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Acetyl chloride hydrolyses very fast to acetic acid & hydrochloric acid. Therefore, the calculated photo transformation rate of the latter ought to be taken instead.
Atmospheric Oxidation (25 deg C):
Acetic acid
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 0.6220 E-12 cm3/molecule-sec
Half-Life = 17.196 Days (12-hr day; 1.5E6 OH/cm3)
Supporting information: results from three publications on the photodissociation of acetyl chloride at 198, 236 and 248 nm.
Key value for chemical safety assessment
Additional information
Acetyl chloride hydrolyses very fast to acetic acid & hydrochloric acid. Therefore, the calculated photo transformation rate of the latter ought to be taken instead.
Atmospheric Oxidation (25 deg C):
Acetic acid
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 0.6220 E-12 cm3/molecule-sec
Half-Life = 17.196 Days (12-hr day; 1.5E6 OH/cm3)
Supporting information: results from three publications on the photodissociation of acetyl chloride at 198, 236 and 248 nm.
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