Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 272-574-2 | CAS number: 68890-66-4
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The EC50-value (d 0 - 7) with 95 % confidence intervals for stimulation of the nitrate-N formation rate in soil on day 7 was 92.3 (79.2 - 106) mg/kg soil dry weight. The EC25-value with 95 % confidence intervals for stimulation on day 7 was 70.3 (56.0 - 83.9) mg/kg soil dry weight. The NOEC for nitrate transformation in soil on day 7 was determined to be 50 mg/kg soil dry weight.
The EC50-values (d 0 - 14) with 95 % confidence intervals for stimulation of the nitrate-N formation rate on day 14 was 119 (97.5 - 148) mg/kg soil dry weight. The EC25-value with 95 % confidence intervals for stimulation on day 14 was 70.0 (26.8 - 94.7) mg/kg soil dry weight. The NOEC for nitrate transformation in soil on day 14 was set at 50 mg/kg soil dry weight.
The EC50-values (d 0 - 28) with 95 % confidence intervals for stimulation of the nitrate-N formation rate on day 28 was 255 (195 - 319) mg/kg soil dry weight. The EC25-value with 95 % confidence intervals for stimulation on day 28 was 161 (120 - 200) mg/kg soil dry weight. The EC10-value with 95 % confidence intervals for stimulation on day 28 was 104 (72.9 - 152) mg/kg soil dry weight. The NOEC for nitrate transformation in soil on day 28 was set at 50 mg/kg soil dry weight.
Key value for chemical safety assessment
- Long-term EC10 or NOEC for soil microorganisms:
- 104 mg/kg soil dw
Additional information
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.
