Registration Dossier
Registration Dossier
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EC number: 204-320-3 | CAS number: 119-40-4
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 03-03-2018 – 03-03-2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Experimental test result performed using standard OECD test guidelines.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
- Principles of method if other than guideline:
- The pH determination of test item 7-anilino-4-hydroxynaphthalene-2-sulphonic acid (CAS No. 119-40-4) was done as per the test guideline OECD 122. The mean pH of the test dispersionwas determined with the help of digital pH meter.
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 7-anilino-4-hydroxynaphthalene-2-sulphonic acid
- EC Number:
- 204-320-3
- EC Name:
- 7-anilino-4-hydroxynaphthalene-2-sulphonic acid
- Cas Number:
- 119-40-4
- Molecular formula:
- C16H13NO4S
- IUPAC Name:
- 7-anilino-4-hydroxynaphthalene-2-sulfonic acid
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Name of test material (as cited in study report): 7-Anilino-4-hydroxynaphthalene-2-sulphonic acid- Molecular formula: C16H13NO4S- Molecular weight: 315.35 g/mOl- Smiles notation: c1ccc(cc1)Nc2ccc3c(c2)cc(cc3O)S(=O)(=O)O- Substance type: Organic- Physical state: Solid
Constituent 1
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): 7-Anilino-4-hydroxynaphthalene-2-sulphonic acid- Molecular formula: C16-H13-N-O4-S- Molecular weight: 315.35 g/mol- Smiles notation: c1ccc(cc1)Nc2ccc3c(c2)cc(cc3O)S(=O)(=O)O- InChl: YGNDWDUEMICDLW-UHFFFAOYSA-N- Substance type: Organic- Physical state: Solid
Reagents
- Reagent:
- water
Results and discussion
pH value
- Key result
- pH value:
- 2.25
- Temp.:
- 27.7 °C
- Remarks on result:
- other: 1% w/v dispersion of the test item
Applicant's summary and conclusion
- Conclusions:
- The pH of 1% w/v dispersion of the test item 7-anilino-4-hydroxynaphthalene-2-sulphonic acid (CAS No119-40-4) was 2.25 at 27.7 °C.
- Executive summary:
The pH determination of test item 7-anilino-4-hydroxynaphthalene-2-sulphonic acid (CAS No 119-40-4) was done following OECD guideline 122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 2.25 at 27.7 °C.
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