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Density

Link to relevant study record(s)

Reference

Endpoint:

density, other

Type of information:

experimental study

Adequacy of study:

key study

Study period:

03/AUG/04 - 12/OCT/04

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)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

GLP compliance:

yes

Type of method:

pycnometer method

Specific details on test material used for the study:

Asahiklin AE-3000, molecular weight 200.07
CAS 406-78-0
Clear colourless liquid
Batch 50407070
Purity: 99.985%
The test substance was stored in a refrigerator in the dark under stable conditions
The test substance expiry date was the 07 July 2005

Key result

Type:

density

Density:

1.483 g/cm³

Temp.:

20 °C

Key result

Type:

density

Density:

1.484 g/cm³

Temp.:

20 °C

Key result

Type:

relative density

Density:

1.48 other: RD

Temp.:

20 °C

The density of a substance is the quotient of the mass and the volume of the substance at a specific temperature. The mass of the test substance used for the experiment was calculated from the difference in weight between the empty pycnometer and the pycnometer filled with test substance. The volume of test substance used for the experiment was the same as the volume of the pycnometer.

The density of the test substance was thus calculated as the quotient of its mass and volume, from the following formula:

D = (B - A) / E

(C - A_mean) / D_mean = Density of the test substance (g/cm³)

Where:

A = weight of empty pycnometer (g)

B = weight of pycnometer filled with Milli-Q water (g)

C = weight of the pycnometer filled with test substance (g)

D = volume of pycnometer (g/cm³)

E = density of water at the test temperature (20°C); 0.9882 g/cm³

^{The relative density of the test substance was also reported as 1.48.}

Table 1, below, summaries the densities reported for 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether from the two tests performed:

Test	Density (g/cm^3)	Mean density (g/cm^3)
1	1.483	1.48
2	1.484

Appendix 1, below, shows the individual test data:

	Test 1	Test 2	Mean
Mass empty pycnometer (A)	26.3291g	26.3281g	26.3286g
Temperature Milli-Q water	20.0°C	20.0°C
Mass pycnometer with Milli-Q water (B)	36.1240g	36.1187g
Volume pycnometer (C)	9.8126cm^3	9.8083cm^3	9.8105cm^3
Temperature test substance	20.0°C	20.0°C
Mass pycnometer with test substance (C)	40.8822g	40.8870g

Conclusions:

The density of 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether is 1.48g/cm3. The relative density if 1.48.

Executive summary:

An experiment was carried out to determine the density and relative density of 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether. The test was perfomed using a pycnometer (of nominal volume 10ml) and all handlings were carried out at 20 ± 0.5°C. Two tests were performed and then mean density for 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether was determined as 1.48g/cm3. The relative density was reported as 1.48.

Key value for chemical safety assessment

Relative density at 20C:

1.484