Registration Dossier
Registration Dossier
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EC number: 812-491-6 | CAS number: 1312943-23-9
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
The water solubility of the test item was determined using the SPARC (v6.0), ALOGPS, WSKOWWIN (v1.42) and WATERNT (v1.01) QSAR models and the average of the geometric mean water solubilites of the constituents was 3.05 x10-6 mg/L.
Key value for chemical safety assessment
- Water solubility:
- 0 mg/L
- at the temperature of:
- 25 °C
Additional information
Polyurea greases thickeners are not synthesized as “pure” compounds and do not exist except in the presence of base oil grease matrix. High temperature stability indicates that the structures of PU substances are robust and resistant to diffusion out of the grease matrix. Therefore, dissolution of PU substances from grease into water is very unlikely as the thickeners are poorly water soluble and are embedded in the hydrophobic grease matrix. PU substances are expected to reside within the grease base oil matrix and is not expected to favourably partition to water. Additionally, due to the low water solubilities of these substances, below the limit of detection (LoD) or Limit of Quantification (LoQ) for standard methods the water solubility was predicted by QSAR modelling.
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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