Registration Dossier
Registration Dossier
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EC number: 233-116-7 | CAS number: 10038-98-9
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: An experimental study combined theoretical calculations according to state of the art chemical principles
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: pH measurements with radiometer Copenhagen PHM83 Autocal; Solutions prepared by volumetric dilutions with micro-syringes under inert atmosphere
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Germanium tetrachloride
- EC Number:
- 233-116-7
- EC Name:
- Germanium tetrachloride
- Cas Number:
- 10038-98-9
- Molecular formula:
- Cl4Ge
- IUPAC Name:
- germanium tetrachloride
- Test material form:
- other: liquid
- Details on test material:
- - Name of test material (as cited in study report): GeCl4
- Physical state: liquid
- Analytical purity: ultra pure
Constituent 1
Results and discussion
pH valueopen allclose all
- pH value:
- 2.8
- Concentration:
- 100 mg/L
- Remarks on result:
- other: pH of 100 mgGeCl4/L water was measured
- pH value:
- 3.7
- Concentration:
- 10 mg/L
- Remarks on result:
- other: pH of 10mg GeCl4/L water was measured
- pH value:
- 4.7
- Concentration:
- 1 mg/L
- Remarks on result:
- other: pH of 1mg GeCl4/L water was measured
- pH value:
- 2.73
- Concentration:
- 100 mg/L
- Remarks on result:
- other: theoretical pH calculation of 100 mgGeCl4/L water
- pH value:
- 3.73
- Concentration:
- 10 mg/L
- Remarks on result:
- other: theoretical pH calculation of 10mg GeCl4/L water
- pH value:
- 4.73
- Concentration:
- 1 mg/L
- Remarks on result:
- other: theoretical pH calculation of 1mg GeCl4/L water
Applicant's summary and conclusion
- Conclusions:
- An experimental study combined theoretical calculations according to state of the art chemical principles. Good correlation was found between experimental data and theoretical calculated values.
- Executive summary:
This experiment shows that the hydrolysis of GeCl4 to GeO2 and HCl triggers acidic conditions
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