Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2018

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The measurement has been carried out by trained experts in a chemical company with experience with the substance.
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Specific details on test material used for the study:
Zinc hexafluorosilicate crystals were obtained from the solution produced and sold by the registrant by evaporation of water.

Reagents

Reagent:
water

Results and discussion

pH valueopen allclose all
Key result
pH value:
1.89
Temp.:
26 °C
Concentration:
ca. 30 vol%
Key result
pH value:
1.58
Temp.:
26 °C
Concentration:
ca. 30 vol%
Key result
pH value:
1.31
Temp.:
26 °C
Concentration:
ca. 30 vol%

Applicant's summary and conclusion

Conclusions:
The substance reacts acidic in a 30% aqueous solution with a pH <2.
Executive summary:

The pH values of the aqueous solution of the dissolved solid remain stable for at least one week (within the measurement inaccuracy). They are each below 2.0, based on the 30% solution.