Reaction mass of potassium trifluoroacetate and potassium trifluoromethanesulphinate

Density

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

29 Jul 2016 - 16 Sept 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

2012

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

28 Jul 2015

Type of method:

buoyancy method

Remarks:

stereopycnometer principle

Key result

Type:

relative density

Density:

2.068

Temp.:

20.6 °C

Assay No.1

Test item sample weight (ME) 7.3066g; Reference volume (VA) 79.250cm3; Volume of sample cellholder (VC) 27.636cm3; Temperature during the assay 20.9°C

 

Data	P2 (PSIG)	P3 (PSIG)	VP (cm3)	Density (g/cm3)	Relativedensity	Mean relative density
Run No. 3	17.129	3.992	3.5539	2.0559	2.0560	2.057 ± 0.001
Run No. 4	17.274	4.026	3.5523	2.0568	2.0569
Run No. 5	17.089	3.983	3.5514	2.0574	2.0574

Remark: The runs No. 1 and 2 were not taken into account; they did not comply with the quality criterion.

Assay No.2

Test item sample weight (ME) 7.5668g; Reference volume (VA) 79.250cm3; Volume of sample cellholder (VC) 27.636cm3; Temperature during the assay 20.3°C

  

Data	P2 (PSIG)	P3 (PSIG)	VP (cm3)	Density (g/cm3)	Relativedensity	Mean relative density
Run No. 2	17.060	3.965	3.6401	2.0787	2.0788	2.079 ± 0.001
Run No. 3	17.113	3.977	3.6426	2.0773	2.0774
Run No. 4	17.059	3.965	3.6383	2.0798	2.0798

 Remark: The run No. 1 was not taken into account; it did not comply with the quality criterion.

Conclusions:

The mean relative density of the test item was D20/4 = 2.068 ± 0.012 at 20.6 °C

Executive summary:

The objective of the study was to determine the relative density of the test item, using the stereopycnometer principle, according to the OECD 109 guideline and EC A3 method and under GLP conditions.

The mean relative density of the test item was D20/4 = 2.068 ± 0.012 at 20.6 °C

Reference 2

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

From 12 Oct 2012 to 07 Dec 2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Not GLP study but following the recognized standard guidelines, and well described.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

GLP compliance:

no

Type of method:

oscillating densitimeter

Key result

Type:

relative density

Density:

ca. 1.248

Temp.:

20 °C

Key result

Type:

relative density

Density:

ca. 1.237

Temp.:

41 °C

The measured values are listed in the following Table 1 and Table 2.

 

Table 1 :Results of density of the test item at 20°C

Assay n°	Density [kg/m^3]	Relative density	Temperature [°C]
1	1247.5	1.2475	20.1
2	1247.5	1.2475	20.0
3	1247.4	1.2474	20.0
Mean ± Standard deviation	1247.5 ± 0.2	1.2475 ± 0.0001	20.0 ± 0.1

 

Table 2 :Results of density of the test item at 40°C

Assay n°	Density [kg/m^3]	Relative density	Temperature [°C]
1	1237.1	1.2371	41.0
2	1237.1	1.2371	41.0
3	1237.1	1.2371	41.0
Mean ± Standarddeviation	1237.1 ± 0.1	1.2371 ± 0.0001	41.0 ± 0.0

Relative density = density [kg/m³] / 999.975 [kg/m³] (density of water at 4°C)

 

The average density at 20°C of the test item was 1247.5 kg/m³ ± 0.1 kg/m³.

The average density at 41°C of the test item was 1237.1 kg/m³ ± 0.1 kg/m³.

 

The relative density at 20°C of the test item is 1.2475 ± 0.0001.

Conclusions:

The relative density at 20°C of test item was 1.2475 +/- 0.0002.
The relative density at 41°C of test item was 1.2371 +/- 0.0001.

Executive summary:

In this study (2012), the determination of the relative density of the test item was performed according to the Regulation (EC) n°440/2008, A.3: “Relative density”, May 2008 and to the OECD Guideline n° 109: “Density of liquids and solids”, adopted July, 27, 1995, using the oscillating densimeter. The results were the following:

The relative density at 20°C of test item is 1.2475 +/- 0.0002.

The relative density at 41°C of test item is 1.2371 +/- 0.0001.

Description of key information

The relative density of the reaction mass in solution in water (approximately at 36%) is 1.2475 at ca. 20°C.

The relative density of the dry reaction mass (as a powder form) is 2.068 at ca. 20°C.

Additional information

Two reliable experimental key studies are available on the reaction mass of potassium trifluoromethanesulphinate and potassium trifluoroacetate as a powder form (pure) and in solution in water (approximately 36%). 

The studies were performed according to the OECD Testing Guideline 109 and under GLP.

The pure reaction mass of potassium trifluoromethanesulphinate and potassium trifluoroacetate (as a powder form) has a relative density of 2.068 at approximately 20°C.

The reaction mass of potassium trifluoromethanesulphinate and potassium trifluoroacetate in solution in water (at approximately 36%) has a relative density of 1.2475 at 20°C.