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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 629-767-5 | CAS number: 1228186-18-2
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- EC50 for microorganisms:
- 228 mg/L
- EC10 or NOEC for microorganisms:
- 90 mg/L
Additional information
A study by R. Geerts, 2010, was conducted to determine the toxicity of the test material to microorganisms present in activated sludge. This study was carried out in accordance with OECD Guideline 209 and in compliance with the OECD principles of Good Laboratory Practice. In this study, activated sludge of predominantly domestic sewage was used. The test was static and was carried over a period of 3 hours.
The test is valid as shown by the EC50of the reference compound, 3,5-dichlorophenol (8 mg/L) and the control respiration rates which are within 15% of each other.
The toxicity of tall oil, reaction products with N-(2-aminoethyl)piperazine to activated sludge was determined at a contact time of 3 hours, using various concentrations of the test substance. The inhibitory effect of tall oil, reaction products with N-(2-aminoethyl)piperazine at a particular concentration is expressed as a percentage of the two controls.The EC50of tall oil, reaction products with N-(2-aminoethyl)piperazine for activated sludge after 3 hours contact time is 228 mg/L with 95% confidence limits of 132 and 566 mg/L. The EC10, EC20and EC80are 90, 124 and 420 mg/L, respectively.
Tall oil, reaction products with N-(2-aminoethyl)piperazine is therefore considered not harmful to activated sludge.
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.
