Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Abiotic degradation

Phototransformation and hydrolysis are the main abiotic degradation pathways for a substance. Benzenesulfonic acid, di-C10-14-alkyl derivatives, calcium salts is neither susceptible for phototransformation in air, water and soil nor for hydrolysis under environmental conditions. The test substance is a complex mixture (UVCB) for which the test guideline for hydrolysis is not recommended with components having different hydrolytic rates. The representative structure of the test substance contains a phenyl sulfonate functional group and this suggests that hydrolysis at environmentally relevant pH levels and temperatures would not readily occur.

Biotic degradation

The calcium sulfonate target substance (Benzenesulfonic acid, di-C10-14-alkyl derivatives, calcium salts) is not expected to be readily biodegradable based on a biodegradation study with calcium sulfonate read-across substance (CAS 70024 -69-0) according to OECD Guideline 301D (key information). The effects of the test substance were assessed based on chemical oxygen demand (COD) measurements using activated sludge from a domestic wastewater plant as inoculum. The test substance attained 8 % degradation during the test duration of 28 days.

Bioaccumulation

The calcium sulfonate target substance (Benzenesulfonic acid, di-C10-14-alkyl derivatives, calcium salts) is not expected to bioaccumulate. Bioaccumulation in aquatic biota is expected for substances possessing a partition coefficient (logPow) in the range of 4.5 to 6 (ECHA Guidance R.11 PBT Assessment). A higher logPow is probably more an effect of solubility than lipophilicity. The representative structure of Benzenesulfonic acid, di-C10-14-alkyl derivatives, calcium salts) possess a logPow of 26.22, concluding that no strong potential to bioaccumulation is expected. This is supported by the predicted Bioconcentration Factor (BCF) of 70.8 L/kg (Chemservice S.A., 2013). Furthermore, based on the assessment of various sulfonates (Lubrizol, 2012), the hazard profile does neither meet the B nor the vB criterion.

Transport and distribution

A Mackay Level III fugacity modelling calculation was performed with EPIWIN by Chemservice S.A. (2013). With a mass amount of 87.1 % for soil, it is clear that the calcium sulfonate target substance (Benzenesulfonic acid, di-C10-14-alkyl derivatives, calcium salts) will mainly be present in soil and is likely to persist there rather than in other environmental compartments. A soil adsorption study of the calcium sulfonate target substance (Benzenesulfonic acid, di-C10-14-alkyl derivatives, calcium salts) is technically not feasible. A prediction with KOCWIN v2.00 revealed a logKoc of 15.65 (Chemservice S.A., 2013).

No Henry Law constant can be determined using a representative structure in HENRYWIN v3.20 since both prediction methods revealed "incomplete results". For the chemical safety assessment, the value predicted by EUSES v2.1 for the target substance (97.2 Pa*m³/mol) is used in order to calculate the PNECsediment (freshwater and marine water) of Benzenesulfonic acid, di-C10-14-alkyl derivatives, calcium salts.