Registration Dossier

Diss Factsheets

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:
2015
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

Constituent 1
Chemical structure
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

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