Registration Dossier
Registration Dossier
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EC number: 220-977-9 | CAS number: 2956-12-9
Endpoint summary
Administrative data
Description of key information
Stability
Phototransformation in air
If released to air, a vapor pressure of 0.00316mm Hg at 25 deg C (0.00316mm Hg is equivalent to vapour pressure of 0.421Pa ) indicates S-allyl O-pentyl dithiocarbonate will exist solely as a vapor in the atmosphere. Vapor-phase S-allyl O-pentyl dithiocarbonate will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 0.218 days, calculated from its rate constant of 49.0430 E-12 cm3/molecule-sec at 25 deg. S-allyl O-pentyl dithiocarbonate do not contain chromophores that absorb at wavelengths >290 nm and therefore S-allyl O-pentyl dithiocarbonate is not expected to be susceptible to direct photolysis by sunlight.
Using the AOPWIN QSAR model, the photochemical degradation rate of S-allyl O-pentyl dithiocarbonate in the atmosphere is 49.0430E-12cm3/molecule-sec, with a resultant predicted half live of 2.617Hrs(0.218 Days (12-hr day; 1.5E6 OH/cm3))
OVERALL OH Rate Constant = 49.0430 E-12 cm3/molecule-sec
HALF-LIFE = 0.218 Days (12-hr day; 1.5E6 OH/cm3)
HALF-LIFE = 2.617 Hrs
Phototransformation in water
It is not applicable for a compound wich is slightly soluble or almost insoluble
Phototransformation in soil
If released to soil, S-allyl O-pentyl dithiocarbonate is expected to have high mobility based upon an estimated Koc of 153.4 . Volatilization from moist soil surfaces is not expected to be an important fate process. Therefore testing for Phototransformation in soils does not need to be performed.
Hydrolysis
Hydrolysis is a chemical reaction during which molecules of water (H2O) are split into hydrogen cations (H+, conventionally referred to as protons) and hydroxide anions (OH−) in the process of a chemical mechanism).
The hydrolysis of the substance was less than 10% over the 5 days, so a definitive test was not performed. Based on these results, S-allyl O-pentyl dithiocarbonate was hydrolytically stable (half life > 1 year) specified by the OECD Guidelines .
Additional information
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