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EC number: 222-619-7
CAS number: 3558-60-9
Adsorption / desorption:
The Adsorption Coefficient of test
chemical was determined as per the HPLC method (OECD Guideline-121). The
Log Koc value was determined to be 2.739 ± 0.000 at 25°C.
The adsorption coefficient Koc in soil
and in sewage sludge of test chemical was determined by the Reverse
Phase High Performance Liquid Chromatographic method according to OECD
Guideline No. 121 for testing of Chemicals (Experimental study report,
2018). The solutions of the test substance and reference substances were
prepared in appropriate solvents. A A test item solution was prepared by
accurately pipetting 4 microlitre of test item and diluted with
Acetonitrile up to 10 ml. Thus, the test solution concentration was 380
mg/l(calculated according to its density). The pH of test substance was
6.1. Each of the reference substance and test substance were analysed by
HPLC at 210 nm. After equilibration of the HPLC system, Urea was
injected first, the reference substances were injected in duplicate,
followed by the test chemical solution in duplicate. Reference
substances were injected again after test sample, no change in retention
time of reference substances was observed. Retention time tR were
measured, averaged and the decimal logarithms of the capacity factors k
were calculated. The graph was plotted between log Koc versus log k.The
linear regression parameter of the relationship log Koc vs log k were
also calculated from the data obtained with calibration samples and
therewith, log Koc of the test substance was determined from its
measured capacity factor. The reference substances were chosen according
to estimated Koc range of the test substance and generalized calibration
graph was prepared. The reference substances were Acetanilide, 4
-chloroaniline, 4-methylaniline(p-Tolouidine), N-methylaniline,
p-toluamide, Aniline, 2,5 -Dichloroaniline, 4 -nitrophenol, 2 -
nitrophenol, 2 -nitrobenzamide, 3-nitrobenzamide, Nitrobenzene, 4 -
Nitrobenzamide, 1-naphthylamine, 1-naphthol, Direct Red 81, Benzoic acid
methylester, Carbendazim, Benzoic acid phenylester, Xylene,
Ethylbenzene, Toluene, Naphthalene, 1,2,3-trichlorobenzene,
Pentachlorophenol, Phenol, N,N-dimethylbenzamide, 3,5-dinitrobenzamide,
N-methyl benzamide, Benzamide, phenanthrene, DDT having Koc value
ranging from 1.25 to 5.63. The Log Koc value of test chemical was
determined to be 2.739 ± 0.000 at 25°C. This log Koc value indicates
that the test chemical has a moderate sorption to soil and sediment and
therefore have slow migration potential to ground water.
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.
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