Registration Dossier
Registration Dossier
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EC number: 219-210-0 | CAS number: 2387-03-3
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Experimental test result performed using standard OECD test guidelines
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
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:
- 2-hydroxynaphthalene-1-carbaldehyde [(2-hydroxy-1-naphthyl)methylene]hydrazone
- EC Number:
- 219-210-0
- EC Name:
- 2-hydroxynaphthalene-1-carbaldehyde [(2-hydroxy-1-naphthyl)methylene]hydrazone
- Cas Number:
- 2387-03-3
- Molecular formula:
- C22H16N2O2
- IUPAC Name:
- 1,1'-(hydrazine-1,2-diylidenedimethylylidene)di(2-naphthol)
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- - Name of test material (as cited in study report): 2-hydroxynaphthalene-1-carbaldehyde [(2-hydroxy-1-naphthyl)methylene]hydrazone- Molecular formula (if other than submission substance): C22H16N2O2- Molecular weight (if other than submission substance): 340.37- Substance type: Organic- Physical state: Solid
Constituent 1
Results and discussion
pH value
- pH value:
- 7.83
- Temp.:
- 28.7 °C
- Concentration:
- 1 vol%
Applicant's summary and conclusion
- Conclusions:
- The pH of 1% w/v aqueous solution of the test item 2-hydroxynaphthalene-1-carbaldehyde [(2-hydroxy-1-naphthyl) methylene] hydrazone (CAS No. 2387-03-3) was 7.83 at 28.7°C
- Executive summary:
The pH determination of test item 2-hydroxynaphthalene-1-carbaldehyde [(2-hydroxy-1-naphthyl) methylene]hydrazone (CAS No. 2387-03-3 ) was done following OECD guideline 122. The pH of 1% w/v aqueous solution was measured with the help of pH meter/probe and it was observed to be 7.83 at 28.7 °C.
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