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EC number: 701-241-0
CAS number: -
A constituent approach has been used to assess the degradation potential
of the substance. Many of the substance constituents are readily
biodegradable based on predictions made using the BIOWIN model (US EPA
2010). For hydrocarbon constituents, half life values have been
predicted using the BIOHCWIN model (US EPA 2010). For diisopropylether
and 1-Isopropoxypropane biodegradation simulation studies are not
required as the substances do not have a high potential for adsorption
to sediment and are highly volatile therefore are not likely to remain
in the water compartment.
The constituents 1-propanol, propene, 2-propanone, 2-propanol and C6
alcohols are predicted to be readily biodegradable based on BIOWIN
predictions (US EPA 2010). Most C6 alkane and alkene constituents are
predicted to be readily biodegradable, with the exception of
2,3-dimethylbutane and 2,3-dimethyl-2-butene. Some C9 alkanes and
alkenes are also predicted to be readily biodegradable (nonene, nonane
Predictions were determined for each representative constituent for
which the model was suitable, using the BIOHCWIN model. Persistence
potential was determined based on half-life (Persistent if: half-life
>40 days). All of the constituents for which the model was suitable were
found to be not persistent except for cyclohexane (half-life: 55.38).
For diisopropylether and 1-isopropoxypropane, biodegradation simulation
studies are not required as the substances do not have a high potential
for adsorption to sediment and are highly volatile therefore are not
likely to remain in the water compartment. This is supported by the
n-octanol/water partition coefficient information indicating that
diisopropylether has a log Kow of 1.52 – 1.88 and 1-isopropoxypropane
has a log Kow of 1.96 (predictions and experimental values from KOWWIN
v1.68). Vapour pressure values of 19900 Pa (diisopropylether,
experimental) and 11400 Pa (1-isopropoxypropane, predicted) and Henry’s
law constant values of 250 Pa/m3/mol (diisopropylether, experimental)
and 271 Pa/m3/mol (1-isopropoxypropane, predicted), taken from MPBPVP
v1.43 and HENRYWIN v3.20, also support this conclusion.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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