Registration Dossier
Registration Dossier
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EC number: 244-742-5 | CAS number: 22036-77-7
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Water solubility (EDTMP-xNa): The substance is very soluble in water and has an average water solubility value of > 400 g/l at ambient conditions as described in a secondary sources.
Key value for chemical safety assessment
- Water solubility:
- 400 g/L
- at the temperature of:
- 20 °C
Additional information
The substance EDTMP-H (and its analogues) are known to be highly hydrophilic and extremely water-soluble. Although supplier's literature is much less detailed than laboratory study reports, given the range of values expected for these types of substance, the uncertainty is not significant in respect of environmental exposure or human health exposure modelling. Typical concentrations of aqueous solutions in commercial supply provides weight of evidence of high loadings. Average water solubility in the range 400 - 460 g/l was determined for commercial solutions of the substance. Phosphonate salts are highly water soluble and are supplied as aqueous solutions. Free acids are less soluble than the salts; however, aqueous solutions in excess of l % active material can be prepared. The aqueous salts are miscible in water. A water solubility value of 21000 mg/l was reported for the parent acid in a secondary source to which no reliability could be assigned. |
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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