Registration Dossier
Registration Dossier
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EC number: 240-539-0 | CAS number: 16484-77-8
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 02 February 1999 to 01 April 1999
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- CIPAC MT 75 (Determination of pH Values)
- Version / remarks:
- CIPAC MT 75.2
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7000 (pH)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- (R)-2-(4-chloro-2-methylphenoxy)propionic acid
- EC Number:
- 240-539-0
- EC Name:
- (R)-2-(4-chloro-2-methylphenoxy)propionic acid
- Cas Number:
- 16484-77-8
- Molecular formula:
- C10H11ClO3
- IUPAC Name:
- (R)-2-(4-chloro-2-methylphenoxy)propionic acid
- Test material form:
- solid: flakes
- Remarks:
- Pale brown flakes
- Details on test material:
- - Storage conditions: Ambient, protected from light.
- Expiry date: 5 November 2000
Constituent 1
Reagents
- Reagent:
- buffer solutions
Results and discussion
pH value
- Key result
- pH value:
- 2.9
- Concentration:
- 1 vol%
- Remarks on result:
- other: Temperature not specified.
Acidity or alkalinity
- Key result
- Acidity or alkalinity:
- acidity
- Value:
- 2.9
Any other information on results incl. tables
Results
Sample |
Weight of Test Material (Technical Grade) (g) |
pH |
A |
0.991 |
2.91 |
B |
0.999 |
2.86 |
Applicant's summary and conclusion
- Conclusions:
- Under the conditions of the study the pH of a 1 % w/v suspension of the test material was found to be 2.9.
- Executive summary:
The pH of the test material was assessed according to EPA OPPTS Guideline 830.7000 and CIPAC MT 75.2 and in compliance with GLP.
The pH electrode was calibrated using pH 4.0 and pH 10.0 buffer solutions. The calibration was then checked by measurement of the pH 7.0 buffer solution. The procedure was conducted in duplicate.
Under the conditions of the study the pH of a 1 % w/v suspension of the test material was found to be 2.9.
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