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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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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/m3]

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 * (TC– T)B  + rC

 

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

    TC= critical temperature = 481.1 °C

    rC= 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

Additional information