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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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