Ditolyl ether

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1999

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

GLP compliance:

no

Type of method:

buoyancy method

Type:

relative density

Density:

1 033.8 kg/m³

Temp.:

20 °C

The relative density of the substance was assessed using Mohr-Westphal balance at temperatures ranging from 20 °C to 190 °C. In the following table the experimental measurements of density at different temparatures are given:

Temperature [°C]	Density [kg/m^3]
20.0	1033.8
40.1	1016.9
60.0	1002.1
80.0	986.1
100.1	969.9
130.0	946.9
160.0	922.4
190.0	897.6

The value for the density at 25 °C was calculated according to the Watson equation:

   r  =   A * (T_C– T)^B  + r_C

 

    With constants for ditolylether: A = 54.94115 ; B = 0.4274744

    T_C= critical temperature = 481.1 °C

    r_C= critical density = 275.5 kg/m³

Conclusions:

The density of the test item was measured at 1033.8 kg/m3 at 20 °C.

Executive summary:

The density was determined using Mohr-Westphal balance which is in accordance with the EU method EC A.3 (buoyancy method). The density of the substance was measured at 1033.8 kg/m³ at 20 °C.

Description of key information

The density was determined using Mohr- Westphal balance, which is in accordance with the EU method EC A.3 (buoyancy method). The density of the sunstance was measured at 1033.8 kg/m³ at 20 °C.

Key value for chemical safety assessment

Relative density at 20C:

1.034