Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 430-750-8 | CAS number: -
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1999-02-10 to 1999-02-15
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- December 1992
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7840 (Water Solubility)
- Version / remarks:
- August 1996
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7860 (Water Solubility Generator Column Method)
- Version / remarks:
- August 1996
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 1484, "Anleitung zur Bestimmung des gesamten organischen Kohlenstoffs (TOC) und des gelösten organischen Kohlenstoffs (DOC)", Normungsausschuss Wasserwesen im Deutschen Institut für Normung e. V., August 1997.
- Principles of method if other than guideline:
- NA
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: DOC (Dissolved Organic Carbon)
- Key result
- Water solubility:
- < 1 mg/L
- Conc. based on:
- test mat. (dissolved fraction)
- Incubation duration:
- 3 d
- Temp.:
- 20 °C
- pH:
- 6
- Details on results:
- The water solubility of Urea 4 at room temperature was estimated to be < 1 g/L by visual judgement in the preliminary test. The saturation concentration of Urea 4 was analytically estimated by a simplified flask method in the preliminary test at 20 °C to be in the range of the quantification limit for the DOC-measurements (1 mg DOC/L).
- Conclusions:
- Interpretation of results: slightly soluble (0.1-100 mg/L)
The water solubility of Urea 4 was estimated to be in the range of < 1 mg/L (quantification limit of the DOC measurements) at 20 °C +/- 1 °C. Thus, Urea 4 was considered to be slightly soluble or insoluble. - Executive summary:
The water solubility of Urea 4 was determined according to EU method A.6, OECD Guideline 105, and EPA OPPTS 830.7840, EPA OPPTS 830.7860 guideline and DIN EN 1484 guideline. Because of the low solubility of the test substance in water and the low sensitivity of the analytical method available the experimental determination of the water solubility of Urea 4 was technically not feasible. Therefore, the water solubility of Urea 4 was estimated to be in the range of < 1 mg/L (quantification limit of the DOC measurements) at 20 °C +/- 1 °C. Thus, Urea 4 was considered to be slightly soluble or insoluble.
Reference
Description of key information
The water solubility of Urea 4 was estimated to be in the range of < 1 mg/L (quantification limit of the DOC measurements) at 20 °C +/- 1 °C. Thus, Urea 4 was considered to be slightly soluble or insoluble.
Key value for chemical safety assessment
- Water solubility:
- 1 mg/L
Additional information
The water solubility of Urea 4 was determined according to EU method A.6, OECD Guideline 105, and EPA OPPTS 830.7840, EPA OPPTS 830.7860 guideline and DIN EN 1484 guideline. Because of the low solubility of the test substance in water and the low sensitivity of the analytical method available the experimental determination of the water solubility of Urea 4 was technically not feasible. Therefore, the water solubility of Urea 4 was estimated to be in the range of < 1 mg/L (quantification limit of the DOC measurements) at 20 °C +/- 1 °C. Thus, Urea 4 was considered to be slightly soluble or insoluble.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
