Registration Dossier
Registration Dossier
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EC number: 239-888-1 | CAS number: 15790-07-5 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 15985:1.
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 18-03-2017 – 18-03-2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Experimental test result performed using standard test guidelines
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: OECD 122
- Principles of method if other than guideline:
- The pH determination of test item Aluminium, 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex (CAS No. 15790-07-5 ) was done as per the test guideline OECD 122. The mean pH of the test dispersion was determined with the help of digital pH meter.
- GLP compliance:
- no
Test material
- Reference substance name:
- Aluminium, 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex
- EC Number:
- 239-888-1
- EC Name:
- Aluminium, 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex
- Cas Number:
- 15790-07-5
- Molecular formula:
- C16H9AlN2O7S2
- IUPAC Name:
- aluminium(3+) 6-sulfonato-1-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]naphthalen-2-olate
- Test material form:
- solid
- Details on test material:
- - Name of test material : aluminium, 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex
- Molecular formula : C16H9AlN2O7S2
- Molecular weight : 432.368 g/mol
- Smiles notation : c12c(cc(S(=O)(=O)[O-])cc2)ccc(c1\N=N\c1ccc(S(=O)(=O)[O-])cc1)[O-].[Al+3]
- InChl : 1S/C16H12N2O7S2.Al/c19-15-8-1-10-9-13(27(23,24)25)6-7-14(10)16(15)18-17-11-2-4-12(5-3-11)26(20,21)22;/h1-9,19H,(H,20,21,22)(H,23,24,25);/q;+3/p-3/b18-17+;
- Substance type: Organic
- Physical state: Solid
Constituent 1
- Specific details on test material used for the study:
- - Name of test material : aluminium, 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex
- Molecular formula : C16H9AlN2O7S2
- Molecular weight : 432.368 g/mol
- Smiles notation : c12c(cc(S(=O)(=O)[O-])cc2)ccc(c1\N=N\c1ccc(S(=O)(=O)[O-])cc1)[O-].[Al+3]
- InChl : 1S/C16H12N2O7S2.Al/c19-15-8-1-10-9-13(27(23,24)25)6-7-14(10)16(15)18-17-11-2-4-12(5-3-11)26(20,21)22;/h1-9,19H,(H,20,21,22)(H,23,24,25);/q;+3/p-3/b18-17+;
- Substance type: Organic
- Physical state: Solid
Results and discussion
pH value
- Key result
- pH value:
- 3.85
- Temp.:
- 27 °C
- Concentration:
- 1 vol%
- Remarks on result:
- other: No other detail available
Applicant's summary and conclusion
- Conclusions:
- The pH determination of test item Aluminium, 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex (CAS No 15790-07-5) 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 3.85 at 27 °C.
- Executive summary:
The pH determination of test item Aluminium, 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex (CAS No. 15790-07-5 ) was done as per the test guideline OECD 122. The mean pH of the test dispersionwas determined with the help of digital pH meter. The mean pH was determine to be 3.85 at 27 °C.
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