Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
melting point/freezing point
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Thermogravimetric analysis or thermal gravimetric analysis (TGA)
GLP compliance:
yes
Type of method:
thermal analysis
Remarks:
thermal gravimetric analysis (TGA)

Test material

Specific details on test material used for the study:
Name magnesium hexafluorosilicon hexahydrate
Batch no. msk 16949658
Appearance white powder
Composition mono constituent

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
124 °C
Decomposition:
yes
Remarks:
melting at 124°C, followed by two decomposition reactions at 136°C and 138°C.
Decomp. temp.:
ca. 136 °C

Applicant's summary and conclusion

Conclusions:
The thermal stability of the test item was screened, by conducting a TGA in a temperature range between 40°C and 950°C.
The analysis of the data and the corresponding curve show, that the sample of the test item is melting at 124°C, followed by two decomposition reactions at 136°C and 138°C.