Registration Dossier
Registration Dossier
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EC number: 500-039-8 | CAS number: 25322-69-4 1 - 4.5 moles propoxylated
Endpoint summary
Administrative data
Description of key information
Additional information
General discussion of environmental fate and pathways:
A hydrolysis test is not available for ‘propane-1,2-diol, propoxylated’. However, ethers and glycols are generally known to be resistant to hydrolysis (Harris JC, 1990). Therefore, ‘propane-1,2-diol, propoxylated’i s not expected to undergo hydrolysis under environmentally relevant conditions.
‘Propane-1,2-diol, propoxylated’ undergoes reactions with hydroxyl radicals in the atmosphere, the calculated rate constant with is 9.974 E-11 cm3/molecule-sec.
No biodegradation screening tests are available for ‘propane-1,2-diol, propoxylated’. However, tests with structurally related substances and constituents (mono-, di- and tripropylene glycol) indicate that ‘propane-1,2-diol, propoxylated’is biodegradable.
No degradation simulation tests are available for ‘propane-1,2-diol, propoxylated’.
Based on the octanol/water partition coefficient (log Kow < 0.3-1.13), ‘propane-1,2-diol, propoxylated’ can be expected to have a low potential for bioaccumulation.
The Koc value calculated from the octanol-water partition coefficient (log Kow <0.3 - 1.13) using the non-hydrophobics equation from the TGD (ECB, 2003) ranges from<15 to 41 L/kg (log value ranges from < 1.18 to 1.61). The upper value is used in the PNEC determination of freshwater/marine sediments and soil.
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