Registration Dossier
Registration Dossier
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EC number: 210-817-6 | CAS number: 623-84-7
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Two GLP-studies according to OECD guidelines 301 B and 301 D have been conducted with PGDA.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
PGDA was tested for its ready biodegradability in the modified Sturm test. After 28 days of incubation, 69.9% biodegradation were observed at the high test concentration while 40.4% biodegradation was observed at the low test concentration. As the level of 60% biodegradation was reached within 10 days of the point where biodegradation exceeded 10% PGDA can be regarded as readily biodegradable.
In a closed bottle test, after 28 days of incubation the Biological oxygen demand (BOD) was approximately 60% of the theoretical origin demand (ThOD). However, in this study PGDA did not reach the 60% biodegradation in the time specified by the OECD guideline.
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