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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016-11-22 – 2016-11-22
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

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

Constituent 1
Chemical structure
Reference substance name:
3'-nitroacetophenone
EC Number:
204-504-3
EC Name:
3'-nitroacetophenone
Cas Number:
121-89-1
Molecular formula:
C8H7NO3
IUPAC Name:
1-(3-nitrophenyl)ethanone
Test material form:
solid
Details on test material:
- Name of test material (as cited in study report): 3'-nitroacetophenone
- Molecular formula: C8 H7 N O3
- Molecular weight: 165.147g/mol
- Smiles notation: c1(cc(ccc1)[N+](=O)[O-])C(C)=O
- InChl : 1S/C8H7NO3/c1-6(10)7-3-2-4-8(5-7)9(11)12/h2-5H,1H3
- Substance type: Organic
- Physical state: solid
Specific details on test material used for the study:
- Name of test material (as cited in study report): 3'-nitroacetophenone
- Molecular formula: C8 H7 N O3
- Molecular weight: 165.147g/mol
- Smiles notation: c1(cc(ccc1)[N+](=O)[O-])C(C)=O
- InChl : 1S/C8H7NO3/c1-6(10)7-3-2-4-8(5-7)9(11)12/h2-5H,1H3
- Substance type: Organic
- Physical state: solid

Results and discussion

pH value
pH value:
3.81
Temp.:
29.1 °C
Concentration:
1 other: %w/v

Applicant's summary and conclusion

Conclusions:
The pH of 1% w/v dispersion of the test item 3'-nitroacetophenone (CAS No121-89-1)was 3.81 at 29.1 °C.
Executive summary:

The pH determination of test item 3'-nitroacetophenone (CAS No 121-89-1) 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 3.81at 29.1 °C. Based on the value, 3'-nitroacetophenone (CAS No 121-89-1) was considered to be acidic in nature.

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