Registration Dossier
Registration Dossier
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EC number: 951-962-1 | CAS number: -
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 25 Nov 2019 - 26 Nov 2019
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- CIPAC MT 75 (Determination of pH Values)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Lead sulphate
- EC Number:
- 231-198-9
- EC Name:
- Lead sulphate
- Cas Number:
- 7446-14-2
- Molecular formula:
- PbSO4
- IUPAC Name:
- lead(4+) disulfate
- Test material form:
- solid: granular
- Details on test material:
- lead sulphate 87.5% (w/w)
zinc sulphate 2.5% (w/w)
Tin sulphate 5.5% (w/w)
Unidentified minerals 2.5% (w/w)
Constituent 1
- Specific details on test material used for the study:
- Name Lead Sulphate
Batch no. 20170505
Appearance grey granules of different sizes
Composition 1.2 % Cu; 4.2 % Zn; 0.8 % Fe; 59.5 % Pb; 0.1 % Cd; 1.7 % As; 0.2 % Sb; 4.0 % Sn; 0.5 % Bi; 0.1 % Br; 0.7 % Cl; 0.3 % F
CAS No. unknown
EC-No. 951-962-1
Molecular formula not stated
Molecular weight not stated
Purity 100 % (UVCB)
Homogeneity homogeneous
Vapour pressure not stated
Stability in solvents H2O: not stated; EtOH: not stated; acetone: not stated; CH3CN: not stated; DMSO: not stated
Solubility in solvents H2O: not stated; EtOH: not stated; acetone: not stated; CH3CN: not stated; DMSO: not stated
Production date not stated
Expiry date 31. Dec. 2025
Storage room temperature (20 ± 5 °C)
Stability stable under storage conditions
Results and discussion
pH value
- Key result
- pH value:
- 4.87
- Temp.:
- 25 °C
- Concentration:
- 1 vol%
Applicant's summary and conclusion
- Conclusions:
- The pH-value of the 1% test item solution at 25.0 ± 0.3 °C was determined as 4.87.
- Executive summary:
This study was performed in order to determine the pH (following CIPAC MT 75) of Lead sulphate. A calibrated pH meter with glass electrode was used. The determination was performed in duplicate.
Calibration of the pH-meter was performed using three buffer solutions of pH 4.006, 6.865, and 9.180, respectively.
In the control measurement, the pH-value of the standard buffer solution, pH 9.180 lay within the accepted range.
The pH-value of the 1% test item solution at 25.0 ± 0.3 °C was determined as 4.87.
This value is the mean of two independent determinations.
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