Registration Dossier
Registration Dossier
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EC number: 222-695-1 | CAS number: 3576-88-3
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
Melam is rather stable in water at environmental temperatures. A half-time of hydrolysis at 25 °C of more than 1 year was obtained.
Key value for chemical safety assessment
- Half-life for hydrolysis:
- 1 yr
- at the temperature of:
- 25 °C
Additional information
Less than 1 % of melam is hydrolysed in saturated buffered solutions at pH 4, 7 and 9 at 50.0 °C within 5 days. This low hydrolysis rate is considered in the EU guideline to correspond to a half-time of hydrolysis at 25 °C of more than 1 year.
A small increase of the oxytriazines as the degradation products was noticed, slightly higher for pH 9 than at pH 4 or 7.
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