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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 209-886-5 | CAS number: 596-49-6
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The Soil Adsorption Coefficient i.e Koc value of p,p',p''-tris(diethylamino)trityl alcohol was estimated using EPI suite KOCWIN Program (v2.00) program as Koc 631300 L/kg(log Koc=5.8002) by means of MCI method at 25 deg.C. This Koc value indicates that the substance p,p',p''-tris(diethylamino)trityl alcohol has a Very strong sorption to soil and sediment and therefore have negligible migration potential to groundwater.
Key value for chemical safety assessment
- Koc at 20 °C:
- 631 300
Additional information
Predicted and experimental data of adsorption endpoint for the target chemical p,p',p''-tris(diethylamino)trityl alcohol (Cas no. 596-49-6) and its read across chemical were reviewed to summarize as follows:
From predicted model EPI suite 2016 indicate that the soil adsorption coefficient (Koc) value of chemical p,p',p''-tris(diethylamino)trityl alcohol is estimated to be 631300 L/kg (log KOC = 5.8002) by means of MCI method at 25 deg.C, This Koc value indicates that the substance p,p',p''-tris(diethylamino)trityl alcohol has a Very strong sorption to soil and sediment and therefore have negligible migration potential to groundwater.
Whereas from chemspider predicted database the soil adsorption coefficient i.e Koc value of test substance p,p',p''-tris(diethylamino)trityl alcohol was estimated to be 31552.75 L/Kg i.e Log Koc= 4.4990 at pH 7.4. This Koc value indicates that the substance p,p',p''-tris(diethylamino)trityl alcohol has a Very strong sorption to soil and sediment and therefore have negligible migration potential to groundwater.
From HSDB database; 2016 the read across chemical gentian violet (Cas no. 548-62-9) indicate the adsorption coefficient (Koc) of substance was found to be 610000 using a structure estimation method based on molecular connectivity indices. This gentian violet is expected to be immobile in soil.
Thus based on the above all studies it is concluded that the test substance p,p',p''-tris(diethylamino)trityl alcohol (Cas no. 596-49-6) is expected to be immobile in soil/sediment.
[LogKoc: 5.8002]
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.
