Registration Dossier
Registration Dossier
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EC number: 212-783-8 | CAS number: 868-85-9
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
very high but hydrolysis occurs
Key value for chemical safety assessment
Additional information
Because of the hydrolysis of dimethyl phosphonate exact experimental determination of the water solubility is not possible and the QSAR-calculations are not reliable without restriction. HSDB (2009) states a solubility of > 100 g/L.
Preparation of 10 % (w/v) of dimethyl phosphonate solution in deionized water, in HCl at pH 2 and in 0.1M sodium phosphate buffer at pH 7 and pH 8 was possible at room temperature (22°C) but hydrolysis was observed observed (Nomeir AA, Burka LT and Matthews HB (1988)).
Conclusion: Water solubility of dimethyl phosphonate is very high but hydrolysis occurs.
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