Registration Dossier
Registration Dossier
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EC number: 248-778-2 | CAS number: 28016-00-4
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
The melting and boiling temperature of dinonylnaphthalenesulphonic acid (DNNSA) and Barium bis(dinonylnaphthalenesulphonate) (BaDNNSA) were determined using DSC. The melting temperature (glass transition) of the acid was -18°C (255K). For Ba DNNSA reaction and/or decomposition of the substance was observed. Based on structural similarities it is expected that ZnDNNSA decomposes before melting. No value for the melting point can be assessed.
Key value for chemical safety assessment
Additional information
The results on Barium bis(dinonylnaphthalenesulphonate) were chosen for the read-across, because this salt is a solid like zinc bis(dinonylnaphthalenesulphonate), while the acid is a liquid at room temperature.
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