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: 429-330-7
CAS number: -
3,5 DCP 3.2
The influence of PDTN on the respiration
rate of activated sludge was investigated after a contact time of 30
The study procedure was based on OECD
Guideline No. 209, adopted April 4, 1984 and EEC Directive 67/548
amended November 18, 1987 (871302), Part C.11, Publication No. L133,
adopted May 30, 1988. Since PDTN was hardly soluble in water, PDTN was
added quantitatively to the test vessels at a concentration of
approximately 100 mg/l. This concentration was tested in duplicate. No
significant inhibition in respiration rate of the sludge was recorded at
approximately 100 mg PDTN per litre. The duplicate measurement confirmed
the result of the first measurement. Therefore no further testing was
needed. The respiration rates of the controls were within 15% of each
other. The EC50 of the reference substance, 3,5-dichlorophenol, was 9
mg/l. Therefore, the test was considered to be valid. In conclusion,
under the conditions of this present test PDTN was not toxic to
waste-water bacteria at a concentration of approximately 100 mg/l.
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again