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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 225-121-8 | CAS number: 4672-38-2
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Calculated from Handbook data pka-Value
Data source
Reference
- Reference Type:
- other: Calculation
- Title:
- No information
- Author:
- AllessaChemie GmbH
- Year:
- 2 012
- Bibliographic source:
- unpublished data of AllessaChemie GmbH
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- Guideline:
- other: calculation
- Principles of method if other than guideline:
- Calculation from pKa-value according to formula pH= 0.5 x pka - 0.5 x log [Acid]
- GLP compliance:
- no
Test material
- Reference substance name:
- Propylphosphonic acid
- EC Number:
- 225-121-8
- EC Name:
- Propylphosphonic acid
- Cas Number:
- 4672-38-2
- Molecular formula:
- C3H9O3P
- IUPAC Name:
- propylphosphonic acid
Constituent 1
Results and discussion
pH value
- pH value:
- ca. 1.74
- Temp.:
- 25 °C
- Concentration:
- ca. 0.1 other: mol/l
Applicant's summary and conclusion
- Conclusions:
- Compared with formic and acetic acid the pKa-value of propylphosphonic acid is significant lower. The substance therefore is more corrosive than this both acids.
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