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Environmental fate & pathways

Hydrolysis

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Description of key information

DNNSA is a structural analogue of Zinc bis(di C8-C10, branched, C9 rich, alkylnaphthalene sulphonate) and the hydrolysis study for DNNSA provides acceptable read-across for the zinc salt. 
The half-life time of DNNSA at 25 °C was:
t½ pH 4: > 1 year,
pH 7 > 1 year,
pH 9 > 1 year.
The hydrolysis half-life for Zinc bis(di C8-C10, branched, C9 rich, alkylnaphthalene sulphonate) is therefore anticipated to be > than 1 year.

Key value for chemical safety assessment

Half-life for hydrolysis:
1 yr
at the temperature of:
25 °C

Additional information