Registration Dossier
Registration Dossier
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EC number: 275-063-2 | CAS number: 70955-74-7
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The biodegradation of this class of alkyl phosphites is expected to occur by the hydrolysis of the phosphite (abiotic degradation) into their component alcohols and then biodegradation of the alcohols. In this regard, these phosphites could generally be considered as biodegradable as their component alcohols. DiTDP's alcohol is isotridecyl alcohol. Tests indicate that the alcohol is readily biodegradable.
A biodegradation screening study, OECD 301D Closed Bottle Test, was performed by van Ginkel (2014) on TiTDP a very close surrogate to DiTDP. The results of the OECD 301D study found 57% degradation at 28 days, with degradation continuing to 63% degradation at 42 days. These results indicate that the phosphite is inherently biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
- Type of water:
- freshwater
Additional information
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