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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: - | CAS number: -
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 03 February 2021 to 22 March 2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
- Version / remarks:
- 2013
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 4-hydroxy-3-methylbenzenesulphonic acid
- Cas Number:
- 7134-04-5
- Molecular formula:
- C7H8O4S
- IUPAC Name:
- 4-hydroxy-3-methylbenzenesulphonic acid
- Test material form:
- solid
Constituent 1
Reagents
- Reagent:
- water
Results and discussion
pH value
- Key result
- pH value:
- 1.84
- Temp.:
- 25 °C
- Concentration:
- ca. 1 other: % w/v
Applicant's summary and conclusion
- Conclusions:
- The pH of a 1% aqueous solution/dispersion of the test item has been determined to be 1.84 at 25 °C.
- Executive summary:
The pH of a 1% aqueous solution/dispersion of the test item has been determined to be 1.84 at 25 °C, using a procedure designed to be compatible with Method 122 of the OECD Guidelines for Testing of Chemicals, 26 July 2013.
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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