Registration Dossier
Registration Dossier
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EC number: 279-420-3 | CAS number: 80206-82-2
Endpoint summary
Administrative data
Description of key information
Additional information
Stability
Phototransformation in air
Using the AOPWIN QSAR model, the photochemical degradation rate of Alcohols, C12-14 in the atmosphere is 18.1944 E-12 cm3/molecule-sec, with a resultant predicted half live of 7.054 Hrs ( 0.588 Days (12-hr day; 1.5E6 OH/cm3))
OVERALL OH Rate Constant = 18.1944 E-12 cm3/molecule-sec
HALF-LIFE = 0.588 Days (12-hr day; 1.5E6 OH/cm3)
HALF-LIFE = 7.054 Hrs
Alcohols, C12-14 has low vapor pressure (0.245 Pa ) indicating significant amounts of Alcohols, C12-14 are unlikely to be present in the atmosphere for photodegradation. The estimated half-life is about 7.054 Hrs (OH rate = 18.1944 E-12 cm3/molecule-sec) with the AOPWIN (US EPA, 2011).
If released to air, a vapor pressure of 0.00181 mm Hg at 25 deg C (0.00181 mm Hg is equivalent to vapour pressure of 0.245 Pa) indicates significant amounts of Alcohols, C12-14 are unlikely to be present in the atmosphere for photodegradation and therefore Alcohols, C12-14 is not expected to be susceptible to direct photolysis by sunlight.
Phototransformation in water
It is not applicable for a compound wich is insoluble or slightly soluble
Phototransformation in soil
If released to soil, Alcohols, C12-14 is expected to have low mobility based upon an estimated Koc of 2245 . 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
According to “ANNEX VIII- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 10 TONNES OR MORE , study for Hydrolysis as a function of pH does not need to be conducted if: -the substance is ready biodegradable.
As Alcohols, C12-14 is ready biodegradable a Hydrolysis study does not need to be conducted.
Hydrolysis is not expected to be an important environmental fate process since this compound lacks functional groups that hydrolyze under environmental conditions. This substance has no hydrolysable structural features and would be expected to be stable in respect of hydrolysis.
Alcohols have no hydrolysable groups and are therefore not susceptible to hydrolysis (Lyman, Reehl and Rosenblatt, 1990).
Oxidation would not be expected under normal environmental conditions.
Reference: Lyman WJ et al; Handbook of Chemical Property Estimation Methods.,: Amer Chem Soc p. 7-4, 7-5, 8-12 (1990)]
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). This substance, which contains primarily ether linkages, is not anticipated to hydrolyze readily in water at neutral pHs.
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