Registration Dossier
Registration Dossier
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EC number: 225-896-2 | CAS number: 5137-55-3
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The Adsorption Coefficient of test substance Methyltrioctyl ammonium chloride (CAS no. 5137-55-3) was determined as per the HPLC method (OECD Guideline-121). The Log Koc value was determined to be 2.268 dimensionless at 25°C. Thus based on the result it is concluded that the test substance Methyltrioctyl ammonium chloride has a low sorption to soil and sediment and therefore has moderate migration potential to ground water.
Key value for chemical safety assessment
- Koc at 20 °C:
- 185
Additional information
The adsorption coefficient Koc in soil and in sewage sludge of test chemical Methyltrioctyl ammonium chloride (CAS no. 5137-55-3) was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 121 . The reference substances were chosen according to functional similarity with the test substance and calibration graph 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-naphtol, 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-methylbenzamide, Benzamide, phenanthrene, DDT having Koc value ranging from 1.25 to 5.63
The Log Koc value was determined to be 2.268 dimensionless at 25°C.
Thus based on the result it is concluded that the test substance has a low sorption to soil and sediment and therefore has moderate migration potential to ground water.
[LogKoc: 2.268]
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