Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Hydrolysis:

One study (B. Foster, 2013), scored as Klimisch 1 and selected as a key study, was performed according to the OECD guideline 111 and GLP.

Less than 10% degradation of reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda was observed after 5 days incubation at 50.0 °C in sterile pH 4.0, pH 7.0 and pH 9.0 buffer samples.

Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda was considered to be hydrolytically stable at pH 4.0, 7.0 and 9.0.

Biodegradation

Ready biodegradability:

One study (R. Graham, 2012), scored as Klimisch 1 and selected as a key study, was performed according to the OECD guideline 301B. After 28 days, the measured percentages of biodegradation were 0 % based on the determination of the evolution CO2. On the basis of this study, Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda is not readily biodegradable.

Inherent biodegradability:

One study (R. Graham, 2013), scored as Klimisch 1 and selected as a key study, was performed according to the OECD guideline 302B. After 28 days, the percentages of biodegradation were 27 % based on the measurement of dissolved organic carbon (DOC). On the basis of this study,Reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda is inherently biodegradable.

Bioaccumulation:

According to column 2 of REACH Annex IX, the study does not need to be conducted, because reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda is not bioaccumulative, with a log Pow of -0.27 at 20°C.

Transport and distribution

Adsorption/desorption:

One study (C. Lewis, 2013), scored as Klimisch 1 and selected as a key study, was performed according to the OECD guideline 106 and GLP.

Distribution coefficients (Kd) for reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda were in the range 2.1 to 7.9 mL/g and Koc values were in the range 60 to 234 mL/g. Depending on the soil, reaction product of naphthalene, propan-2-ol, sulfonated and neutralized by caustic soda was shown to be of ‘medium’ or ‘high mobility’ according to the McCall classification.