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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 232-954-0 | CAS number: 9066-59-5
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- December from 12 to 18, 2001
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Test conducted according to internationally accepted testing guidelines.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7000 (pH)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Lysozyme, hydrochloride
- EC Number:
- 232-954-0
- EC Name:
- Lysozyme, hydrochloride
- Cas Number:
- 9066-59-5
- Molecular formula:
- C616H963N193O182S10 x HCl
- IUPAC Name:
- Lysozyme, hydrochloride
Constituent 1
Results and discussion
pH value
- pH value:
- 3.64
- Temp.:
- 22.3 °C
- Concentration:
- 1 vol%
Any other information on results incl. tables
1 % by weight solution in ASTM Type II water yielded a mean pH of 3.64.
| Replicate | Temperature °C | pH |
| 1 | 22.3 | 3.62 |
| 2 | 22.3 | 3.64 |
| 3 | 22.3 | 3.67 |
| Mean pH | 3.64 | |
| Standard Deviation | 0.0252 | |
Applicant's summary and conclusion
- Conclusions:
- 1 % solution in ASTM Type II water has a mean pH of 3.64.
- Executive summary:
The pH of a 1 % (w/w) solution of the test item was tested, according to the OPPTS 830.7300 guideline. The temperature for pH determination was maintained at 22 ± 1 °C. Readings were taken until three consecutive values for each determination. 1 % by weight solution in ASTM Type II water yielded a mean pH of 3.64.
Conclusion
1 % by weight solution in ASTM Type II water yielded a mean pH of 3.64.
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.
