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Environmental fate & pathways

Adsorption / desorption

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Reference
Endpoint:
adsorption / desorption: screening
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Justification for type of information:
For the REACH registration of dilithium tetraborate, a theoretical statement was prepared stating that in accordance with the REACH Regulation, the study on the adsorption coefficient (Koc) on soil and on sewage sludge cannot be performed using High Performance Liquid Chromatography (HPLC) method as described in OECD guideline 121 for an inorganic substance or mineral salt test item such as dilithium tetraborate. This statement is also applicable for lithium tetrahydroxyborate. Read across to the theoretical statement prepared for dilithium tetraborate is proposed to cover the adosprtion/desorption endpoint for the REACH registration of lithium tetrahydroxyborate.
Remarks on result:
not determinable because of methodological limitations
Remarks on result:
not determinable because of methodological limitations
Validity criteria fulfilled:
yes
Conclusions:
The study on the adsorption coefficient (Koc) on soil and on sewage sludge cannot be performed using High Performance Liquid Chromatography (HPLC) method as described in OECD guideline 121 for an inorganic substance or mineral salt test item such as lithium tetrahydroxyborate.
Executive summary:

For the REACH registration of dilithium tetraborate, a theoretical statement was prepared stating that in accordance with the REACH Regulation, the study on the adsorption coefficient (Koc) on soil and on sewage sludge cannot be performed using High Performance Liquid Chromatography (HPLC) method as described in OECD guideline 121 for an inorganic substance or mineral salt test item such as dilithium tetraborate.  This statement is also applicable for lithium tetrahydroxyborate.  Read across to the theoretical statement prepared for dilithium tetraborate is proposed to cover the adosprtion/desorption endpoint for the REACH registration of lithium tetrahydroxyborate.  

Description of key information

The study on the adsorption coefficient (Koc) on soil and on sewage sludge cannot be performed using High Performance Liquid Chromatography (HPLC) method as described in OECD guideline 121 for an inorganic substance or mineral salt test item such as dilithium tetraborate.  

Key value for chemical safety assessment

Additional information

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