Registration Dossier
Registration Dossier
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EC number: 800-003-4 | CAS number: 1415316-96-9
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The test item Fatty acids, sunflower-oil, conjugated, maleated,reation products with diethanolamine, maleated tall-oil fatty acids and triethanolamineis an UVCB substance. The substructures Fatty acids, sunflower-oil, conjugated, maleatedforms with the triethanolamine and /or diethanolamine a salt like structures, which in the aquatic milieu of the environment are expected to dissociate into Fatty acids, sunflower-oil, conjugated, maleated and triethanolamine and /or diethanolamine.
Therefore, the hydrolysis has been considered for the single substructures of the fatty acids, maleated and triethanolamine and diethanolamine:
Diethanolamine / Triethanolamine:
According to Kollig (1990), Boethling et al. (2000) and Harris (1990), amines and alcohols are generally resistant to hydrolysis because they do not contain labile functional groups. Furthermore, in accordance with column 2 of REACH Annex VII, the studies for hydrolysis do not need to be performed , if the substance is readily biodegradable or inorganic. Diethanolamine (CAS: 111-42 -2) and Triethanolamine (CAS: 102-71 -6) are readily biodegradable.
Fatty acids, sunflower-oil, conjugated, maleated:
In accordance with column 2 of Annex VIII of Regulation (EC) No 1907/2006 the study on hydrolysis as a function of pH (required in section 9.2.2.1) does not need to be conducted if the substance is highly insoluble in water. The substance is a uvcb compound with varying components and individual water solubilities. Considering the structure of the single compounds, the anhydride group is known to be susceptible to hydrolysis. Acid anhydrides react with water to form the corresponding acid. The hydrolysis rate increases with pH. However, due to the uvcb nature of the compound, testing is technically not feasible.
Key value for chemical safety assessment
Additional information
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