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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data taken from a published chemistry handbook
Qualifier:
according to guideline
Guideline:
other: not reported
Principles of method if other than guideline:
Not reported
GLP compliance:
no
Type of method:
other: not stated in handbook
Type:
relative density
Density:
1.041 g/cm³
Temp.:
17.5 °C
Remarks on result:
other: 5% solution
Key result
Type:
relative density
Density:
1.274 g/cm³
Temp.:
17.5 °C

The relative density at 17.5 ⁰C is reported to be:

1.0407 g/cm3 for a 5% solution

1.0834 g/cm3 for a 10% solution

1.1281 g/cm3 for a 15% solution

1.174 g/cm3 for a 20% solution

1.2235 g/cm3 for a 25% solution

1.2742 g/cm3 for a 30% solution

Conclusions:
The relative density at 17.5 ⁰C ranges from 1.0407 -1.2742 g/cm3 for solutions of 5 -30%
Executive summary:

The relative density at 17.5 ⁰C is reported to be:

1.0407 g/cm3 for a 5% solution

1.0834 g/cm3 for a 10% solution

1.1281 g/cm3 for a 15% solution

1.1740 g/cm3 for a 20% solution

1.2235 g/cm3 for a 25% solution

1.2742 g/cm3 for a 30% solution.

Description of key information

Published handbook data report the relative density at 17.5 ⁰C  to range from 1.0407 -1.2742 g/cm3 for solutions of 5 -30%

Key value for chemical safety assessment

Relative density at 20C:
1.274

Additional information

The relative density at 17.5 ⁰C is reported to be (Merck Index, 2001):

1.0407 g/cm3for a 5% solution

1.0834 g/cm3 for a 10% solution

1.1281 g/cm3 for a 15% solution

1.174 g/cm3 for a 20% solution

1.2235 g/cm3 for a 25% solution

1.2742 g/cm3 for a 30% solution.

The density of a 60.97% aqueous solution of hexafluorosilicic acid is reported to be 1.4634 at 25 degrees Celsius (Hollemann et al, 1995). Since the solutions above 30 -35% are not stable, the result of the 60.97% solution is considered to be not relevant for the assessment.