Registration Dossier
Registration Dossier
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EC number: 946-046-3 | CAS number: -
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Remarks:
- pH of the substance was determined according to USP 38/NF 33 <791> Method, and conducted under good manufacturing practices (GMP)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: USP 38/NF 34 <841> Method I
- GLP compliance:
- no
- Other quality assurance:
- other: conducted under good manufacturing practices (GMP)
Test material
- Reference substance name:
- 4-sulphophthalic acid
- EC Number:
- 201-881-6
- EC Name:
- 4-sulphophthalic acid
- Cas Number:
- 89-08-7
- Molecular formula:
- C8H6O7S
- IUPAC Name:
- 4-sulphophthalic acid
- Reference substance name:
- 3-sulphophthalic acid
- EC Number:
- 267-576-5
- EC Name:
- 3-sulphophthalic acid
- Cas Number:
- 67892-43-7
- Molecular formula:
- C8H6O7S
- IUPAC Name:
- 3-sulphophthalic acid
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- water
- Test material form:
- liquid
Constituent 1
Constituent 2
Constituent 3
Results and discussion
pH value
- Key result
- pH value:
- ca. 1.855
- Temp.:
- 25 °C
- Concentration:
- other: 1 in 200 dilution
- Remarks on result:
- other:
- Remarks:
- Determined by measuring glass electrode
Applicant's summary and conclusion
- Conclusions:
- A 1:200 dilution of the Reaction Mass of 4-sulphophthalic acid and 3-sulphophthalic acid has a pH of 1.855
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