Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Alchisor TAL 111 is decene, hydroformylation products, low boiling and can be characterised as a UVCB substance. As defined in the ‘Read-Across Justification Document’ section 13, data provided for the analogue substance Alchisor TAL 123 and the Alchisor TAL 111 consitutent category substances, Category 3 hydrocarbon solvents, are representative of Alchisor TAL 111 and suitable for assessment purposes. Study data for each analogue/constituent category has been evaluated and considered together. The most relevant and reliable study result from across the analogue/constituent categories has been identified and used to address the endpoint in question. Below is a brief summary of the endpoints associated with Environmental Fate and Pathways.

 

Stability

In accordance with Annex X of the Regulation (EC) No 1907/2006 REACH concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals, information regarding phototransformation in air, as well as in water and soil, is not mandatory information requirement. At present, data on the hydrolysis of Alchisor TAL 111 and its read-across analogue and category substances is unavailable.

 

In Annex VIII Column 2 of the REACH Regulation it states that a study on the Hydrolysis as function of pH does not need to be conducted if the substance is readily biodegradable. Therefore, a study on the Hydrolysis as function of pH is not required as Alchisor TAL 111 is readily biodegradable based on the evidence presented for analogue and category substances in the 'Read-Across Justification' report.

 

Biodegradation

 

In water:

A range of reliable studies show that the analogue/constituent categories of Alchisor TAL 111 (as justified in the Read-Across Justification Document in Section 13) are all readily biodegradable in water. Therefore Alchisor TAL 111 is also readily biodegradable in water.   

In water and sediment:

In accordance with Annex VIII Column 2 of the Regulation (EC) No 1907/2006 REACH concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals, the water and sediment simulation testing (required in Section 9.2.1) does not need to be conducted as the substance is readily biodegradable.

 

In soil:

In accordance with Annex VIII Column 2 of the Regulation (EC) No 1907/2006 REACH concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals, the soil simulation testing (required in Section 9.2.1) does not need to be conducted as the substance is readily biodegradable.

 

In mode of biodegradation:

In accordance with theRegulation (EC) No 1907/2006 REACH concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals, ‘mode of degradation in actual use’ is not a standard information requirement. There are no reliable data for ‘mode of degradation in actual use’ relating to the analogue substance or the consitutent category (Category 3 hydrocarbons, C9 -C14 aliphatics (2 -25% aromatics)).

 

Bioaccumulation

As a consequence of bioaccumulation studies being waived as unsuitable, as for C9-C14 aliphatics (2-25% aromatics), no reliable measured bioconcentration information is required for constituent category or the analogue substance Alchisor TAL 123. The data requirement for bioconcentration/bioaccumulation is being waived for Alchisor TAL 111 on the basis that the studies are waived for its constituent Category 3 hydrocarbons.

 

Transport and Distribution

As stated in section 5.2.1, reliable studies have shown that the Alchisor TAL 111 and its constituent category substances are all readily biodegradable in water. According to Annex IX Column 2 of Regulation (EC) No 1907/2006 REACH concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals an absorption/desorption study does not need to be conducted if the substance and its relevant degradation products decompose rapidly.

Categories Display