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EC number: 234-919-5 | CAS number: 12040-43-6
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:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- CIPAC MT 75 (Determination of pH Values)
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 122, adopted 26.Jul.2013: Determination of pH, Acidity and Alkanity
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Landesamt für Umwelt-, Wasserwirtschaft und Gewerbeaufsicht, Rheinland-Pfalz
Test material
- Reference substance name:
- Silicic acid, aluminum magnesium sodium salt
- EC Number:
- 234-919-5
- EC Name:
- Silicic acid, aluminum magnesium sodium salt
- Cas Number:
- 12040-43-6
- Molecular formula:
- Na(0.017-1.739)Mg(0.008-0.823)Al(0.002-0.2473)SiO(2.018-3.837)
- IUPAC Name:
- aluminium(3+) magnesium(2+) sodium tris(oxosilanebis(olate))
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Name: Silicic acid Aluminium Magnesium Sodium Salt
Batch no. code # 1107274003
Appearance: white powder
Composition: Silicic acid Aluminium Magnesium Sodium Salt
CAS No. 12040-43-6
EINECS-No. 234-919-5
Purity > 99 %
Homogeneity homogeneous
Vapour pressure: not volatile
Stability: stable at room temperature
Solubility: poorly soluble
Production date: not stated
Expiry date O1. Nov. 2018
Storage: room temperature 20 +/- 5 °C, dry
Constituent 1
Reagents
- Reagent:
- water
Results and discussion
pH value
- Key result
- pH value:
- 11.08
- Temp.:
- 25 °C
- Concentration:
- 10 g/L
Any other information on results incl. tables
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 at 25.0 +/- 0.3 °C was determined as 11.08
This value is the mean of two independent determinations.
Applicant's summary and conclusion
- Conclusions:
- A solution of 10g/l test item shows a pH value of 11.08
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