Registration Dossier
Registration Dossier
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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.
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EC number: 241-620-3 | CAS number: 17636-10-1
Endpoint summary
Administrative data
Description of key information
Additional information
Adsorption / desorption
No experimental data is available for this endpoint, which is regarded to be mandatory under REACH. However, a scientifically accepted calculation method was used by Chemservice S.A. (2011) to fulfil this endpoint: The adsorption potential to soil of the test substance was determined by the computer program KOCWIN v2.00 (EPIWIN software) by US-EPA. This program estimates the organic-normalized sorption coefficient for soil, which is designated as Koc. The following two models are used: the Salbjic molecular connectivity (MCI) method as well as the traditional method which is based on the logPow value of the substance. The MCI method is taken more seriously into account, due to the fact that is includes improved correction factors. For this chemical compound, the metal compound (Na) has been removed by the program to allow the estimation via the MCI method, resulting in a Koc value of 2.857 L/kg. The traditional method gives a value of 0.086 L/kg. It is noted that these results represent a best-fit to the majority of experimental values, due to the fact that the Koc of this structure may be sensitive to the surrounding pH. This method is regarded to be reliable with restrictions (Klimisch 2) and the data can be used for the chemical safety assessment.
Henry´s Law constant
This information is not mandatory under REACH, however, it is possible to predict the distribution between aqueous solution and air for the test substance with the help of the computer program HENRYWIN v3.20 (EPIWIN software) by US-EPA (Chemservice S.A., 2011). The program calculates the Henry´s Law Constant based on the Bond Method of 0.0000801 Pa*m³/mol (8.01 E-5 Pa*m³/mol) at an ambient temperature of 25 °C. The Group Method shows an "Incomplete Result". This estimation method is scientifically accepted and considered to be reliable with restrictions.
Distribution modelling
This information is not available and / or not required under REACH.
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.
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