Registration Dossier
Registration Dossier
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EC number: 204-185-0 | CAS number: 117-34-0
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-02-09 – 2017-02-09
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
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:
- A pH meter is essentially a voltmeter with high input impedance which measures the voltage of an electrode sensitive to the hydrogen ion concentration, relative to another electrode which exhibits a constant voltage
- GLP compliance:
- no
Test material
- Reference substance name:
- Diphenylacetic acid
- EC Number:
- 204-185-0
- EC Name:
- Diphenylacetic acid
- Cas Number:
- 117-34-0
- Molecular formula:
- C14H12O2
- IUPAC Name:
- 2,2-diphenylacetic acid
- Test material form:
- solid
- Details on test material:
- - Name of test material (as cited in study report): diphenyl acetic acid
- Molecular formula: C14H12O2
- Molecular weight: 212.247 g/mol
- SMILES: C(c1ccccc1)(c1ccccc1)C(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): Diphenylacetic acid
- Molecular formula: C14 H12 O2
- Molecular weight: 212.247 g/mol
- Smiles notation: C(c1ccccc1)(c1ccccc1)C(O)=O
- Inchl : 1S/C14H12O2/c15-14(16)13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10,13H,(H,15,16)
- Substance type: Organic
- Physical state: Solid
Results and discussion
pH value
- Key result
- pH value:
- 3.72
- Temp.:
- 28 °C
- Concentration:
- 1 other: % w/v
Acidity or alkalinity
- Key result
- Acidity or alkalinity:
- acidity
- Value:
- 3.72
Applicant's summary and conclusion
- Conclusions:
- The pH of 1% w/v dispersion of the test item diphenyl acetic acid (CAS No117-34-0) was 3.72 at 28 °C.
- Executive summary:
The pH determination of test item diphenyl acetic acid (CAS No 117-34-0) 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 3.72at 28 °C. Based on the value, diphenyl acetic acid (CAS No 117-34-0) was considered to be acidic in nature.
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