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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 617-441-5 | CAS number: 83121-18-0
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1988-05-06
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 988
- Report date:
- 1988
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- CIPAC MT 75 (Determination of pH Values)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ANSI/ASTM E 70-7700
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- 1-(3,5-dichloro-2,4-difluorophenyl)-3-(2,6-difluorobenzoyl)urea
- EC Number:
- 617-441-5
- Cas Number:
- 83121-18-0
- Molecular formula:
- C14 H6 Cl2 F4 N2 O2
- IUPAC Name:
- 1-(3,5-dichloro-2,4-difluorophenyl)-3-(2,6-difluorobenzoyl)urea
- Test material form:
- solid: crystalline
Constituent 1
- Specific details on test material used for the study:
- CAS Name: 1-(3,5-dichloro-2,4-difluorophenyl)-3-(2,6-difluorobenzoyl) urea
CAS No.: 83121-18-0
Results and discussion
pH value
- Key result
- pH value:
- >= 5.7 - <= 8.92
- Temp.:
- 22 °C
- Remarks on result:
- other: 1 g of the test item was weighed into 100 mL water. Due to the low solubility of the test item it is not possible to report the exact concentration.
Any other information on results incl. tables
The pH of an aqueous dispersion of the test item was determined to vary from 5.70 to 8.92 at 22.0 ± 1.0 °C. The experiment was performed in duplicate. The observed decline in pH values and the deviation between the duplicate experiments were caused by the characteristics of the test substance (including the low solubility in water, the slow settling of the test substance from the dispersion, the adsorption of small test substances particles to the electrode and the hydrolytic instability of the test substance).
Applicant's summary and conclusion
- Conclusions:
- The pH of an aqueous dispersion of the test item was determined to vary from 5.70 to 8.92 at 22.0 ± 1.0 °C.
- Executive summary:
An experimental study was conducted to determine the pH value of the test item according to CIPAC Method MT 75 and ASTM E70-77. An aqueous dispersion of the test item was prepared. 1.0 g of sample was weighed into a 100 mL measuring cylinder. Measurements were performed at 22.0 ± 1.0 °C. The observed decline in pH values and the deviation between the duplicate experiments were caused by the characteristics of the test substance (including the low solubility in water, the slow settling of the test substance from the dispersion, the adsorption of small test substances particles to the electrode and the hydrolytic instability of the test substance). The pH of an aqueous dispersion of the test item was determined to vary from 5.70 to 8.92 at 22.0 ± 1.0 °C.
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.
