Registration Dossier
Registration Dossier
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EC number: 232-489-3 | CAS number: 8052-41-3 A colorless, refined petroleum distillate that is free from rancid or objectionable odors and that boils in a range of approximately 148.8°C to 204.4°C (300°F to 400°F).
Endpoint summary
Administrative data
Description of key information
Stability
Phototransformation in air
If released to air, a vapor pressure of 1.73 mm Hg at 25 deg C (1.71 mm Hg is equivalent to vapour pressure of 231 Pa) indicates significant amounts of Stoddard solvent are unlikely to be present in the atmosphere for photodegradation and therefore Stoddard solvent is not expected to be susceptible to direct photolysis by sunlight.
Stoddard solvent has low vapor pressure (231 Pa ) indicating significant amounts of Stoddard solvent are unlikely to be present in the atmosphere for photodegradation. The estimated half-life is about 11.552 Hrs (OH rate = 1.1105 E-12 cm3/molecule-sec) with the AOPWIN (US EPA, 2011).
Using the AOPWIN QSAR model, the photochemical degradation rate of Stoddard solvent in the atmosphere is 11.1105 E-12 cm3/molecule-sec, with a resultant predicted half live of 11.552 Hrs (0.963 Days (12-hr day; 1.5E6 OH/cm3)
OVERALL OH Rate Constant = 11.1105 E-12 cm3/molecule-sec
HALF-LIFE = 0.963 Days (12-hr day; 1.5E6 OH/cm3)
HALF-LIFE = 11.552 Hrs
Phototransformation in water
It is not applicable for a compound wich is insoluble or slightly soluble
Phototransformation in soil
If released to soil, Stoddard solvent is expected to have low mobility based upon an estimated Koc of 1451 . 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 reaction in which a water molecule or hydroxide ion substitutes for another atom or group of atoms present in a chemical resulting in a structural change of that chemical. Potentially hydrolyzable groups include alkyl halides, amides, carbamates, carboxylic acid esters and lactones, epoxides, phosphate esters, and sulfonic acid esters (Neely, 1985). The lack of a suitable leaving group renders compounds resistant to hydrolysis.
The chemical constituents that comprise the Stoddard solvent consist entirely of carbon and hydrogen and do not contain hydrolyzable groups. As such, they have a very low potential to hydrolyze. Therefore, this degradative process will not contribute to their removal from the environment.
Additional information
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