Registration Dossier
Registration Dossier
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EC number: 277-475-8 | CAS number: 73455-75-1
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The Pigment additive FNC (CAS 73455-75-1) is expected to be stable towards hydrolysis under environmental conditions.
Key value for chemical safety assessment
Additional information
The Pigment additive FNC (CAS 73455 -75 -1) is composed of Copper phthalocyanine monosulfonic acid (CAS 28901 -96 -4) and dodecylamine (CAS 124 -22 -1). The assessment of the hydrolysis is based on a read-across to information on these components as experimental data are not available for the target substance itself.
Hydrolysis of Copper phthalocyanine monosulfonic acid (CAS 28901 -96 -4) at environmental pH conditions is not expected due to the structure of the molecule. Therefore a study is scientifically unjustified.
Dodecylamine (CAS 124 -22 -1) is expected to be hydrolytically stable. According to Kollig et al., 1993, and Boethling & Mackay, 2003, alkylamines do not contain functional groups that are expected to hydrolyse. The BUA report (1997) states that fatty amines are stable towards hydrolysis under environmental conditions. In accordance with REACH, Annex VIII, Section 9.2.2.1, column 2, the study does not need to be conducted if the substance is readily biodegradable. As dodecylamine (CAS 124-22-1) is readily biodegradable this endpoint can be waived (see IUCLID Ch. 5.2.1).
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