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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

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.

Annex VIII Column 2 of the REACH Regulation 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 Olefines polymer, oxidized, hydrolyzed, distillation residues is readily biodegradable.

 

Biodegradation

In water:

The primary constituents of Olefines polymer, oxidized, hydrolyzed, distillation residues

(icosan-1-ol and docosan-1-ol including 2-decyltetradecanol) were assessed for ready biodegradability in reliable (Klimisch 1 or 2), OECD Guideline 301B studies (Ready Biodegradability: CO2 Evolution Test).

 

For icosan-1-ol, 88.4% of the test substance was biodegraded after 28 days with an unacclimated sewage sludge inoculum. The test substance also achieved greater than 60% degradation within a 10-day window indicating a positive result for ready biodegradability.

 

For docosan-1-ol, 87.9% of the test substance was biodegraded after 28 days with an unacclimated sewage sludge inoculum. The test substance also achieved greater than 60% degradation within a 10-day window indicating a positive result for ready biodegradability.

In two recent reliable studies by Flach (2012), the degradation of 2-decyltetradecanol and docosan-1 -ol were 84.9% and 87.5%, respectively, after 28 days with the degradation rate reaching more than 60% within the 10-day window.

 

Long chain alcohols (represented by icosan-1-ol and docosan-1-ol) constitute more than 80% of the complete olefines polymer, oxidized, hydrolyzed, distillation residues composition. Since the main constituents, icosan-1-ol and docosan-1-ol (and 2-decyltetradecanol) are readily biodegradable it is inferred that olefines polymer, oxidized, hydrolyzed, distillation residuesis also readily biodegradable. Minor residual constituents, which include ether and carboxylate esters, are also expected to degrade rapidly.

 

In water and sediment:

In accordance with Annex IX 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 IX 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 accordance with the Regulation (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.

 

Bioaccumulation

The REACH requirement in Annex IX for a study on bioaccumulation in aquatic species is not needed if the substance has a low potential for bioaccumulation and/or a low potential to cross biological membranes. Accordingly the bioaccumulation data requirement is waived for olefines polymer, oxidized, hydrolyzed, distillation residues. The waiver argumentations are based on the technical difficulties associated with conducting bioaccumulation studies, the ready biodegradability of the test substance, the low toxicity in aquatic organisms and the low toxicity in mammals resulting in the unlikely potential for secondary poisoning.

 

Transport and Distribution

In accordance with Annex VIII Column 2 of Regulation (EC) No 1907/2006 REACH concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals, the adsorption/desorption screening test (required in Section 9.3.1) does not need to be conducted as the substance and its relevant degradation products decompose rapidly.