Registration Dossier
Registration Dossier
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EC number: 223-725-6 | CAS number: 4039-32-1
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2013-06-26 to 2013-07-11
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP and guideline compliant study.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- CIPAC MT 75 (Determination of pH Values)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Lithiumbis(trimethylsilyl)amide
- EC Number:
- 223-725-6
- EC Name:
- Lithiumbis(trimethylsilyl)amide
- Cas Number:
- 4039-32-1
- Molecular formula:
- C6H19NSi2.Li
- IUPAC Name:
- lithium 1,1,1,3,3,3 hexamethyldisilazan-2-ide
- Reference substance name:
- Lithium hexamethyldisilazide
- IUPAC Name:
- Lithium hexamethyldisilazide
- Details on test material:
- - Name of test material as cited in study report: Lithiumhexamethyldisilazid
- Product No.: 401703999
- Molecular formula: [(CH3)3Si]2NLi
- Batch No.: JAK 13 046
- Content: 95.4 wt% (active base Watson-Eastham)
- Physical state: white to yellowish powder
- Storage conditions: Room temperature (10 - 30 °C), dry and under protective gas
Constituent 1
Constituent 2
Results and discussion
pH valueopen allclose all
- pH value:
- 12.4
- Temp.:
- 23.7
- Concentration:
- 1 vol%
- Remarks on result:
- other: Median of three tests
- pH value:
- 12.3
- Temp.:
- 23 °C
- Concentration:
- 1 vol%
- Remarks on result:
- other: Test 1
- pH value:
- 12.6
- Temp.:
- 23.9 °C
- Concentration:
- 1 vol%
- Remarks on result:
- other: Test 2
- pH value:
- 12.3
- Temp.:
- 24.1 °C
- Concentration:
- 1 vol%
- Remarks on result:
- other: Test 3
Any other information on results incl. tables
Table: pH value of a aqueous solution containing 1 % of the test item
Test |
1 |
2 |
3 |
Weight/g |
0.99 |
1.08 |
1.09 |
Volume of demineralized water/ cm^3 |
100 |
100 |
100 |
pH value |
12.3 |
12.6 |
12.3 |
Temperature/ °C |
23.0 |
23.9 |
24.1 |
Applicant's summary and conclusion
- Conclusions:
- The median pH value of a 1% solution in water was 12.4.
- Executive summary:
The pH value of the test item was measured as 1% solution in water. The test item reacted with water and therefore the pH value was measured from the reaction mixture. The median pH value of a 1% solution in water was 12.4.
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