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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Link to relevant study record(s)

Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
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)
GLP compliance:
not specified
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.273 other: relative density is dimensionless
Temp.:
20 °C
Type:
density
Density:
1.273 g/cm³
Temp.:
20 °C

Calibration

Pycnometer empty: 39.3390 g

Pycnometer filled with water (20 °C): 89.2495 g

Weight of water: 49.9105 g

 

Calculated pycnometer volume: 49.9105 g / 0.9982 g/mL = 50.0005 mL

 

Density measurement of the test item

 

First measurement

W0 = 39.3390 g

WP = 51.0989 g

Test item weight = 51.0989 g - 39.3390 g = 11.7599 g

WT = 86.4568 g

Toluene weight = 86.4568 g - 51.0989 g = 35.3579 g

Toluene volume = 35.3579 g / 0.8668 g/mL = 40.79130 mL

Test item volume = 50.0005 mL - 40.79130 mL = 9.20920 mL

Test item density = 11.7599 g / 9.20920 mL =1.2770 g/mL

 

Second measurement

W0 = 39.3390 g

WP = 49.4570 g

Test item weight = 49.4570 g - 39.3390 g = 10.1180 g

WT = 85.8846 g

Toluene weight = 85.8846 g - 49.4570 g = 36.4276 g

Toluene volume = 36.4276 g / 0.8668 g/mL = 42.02538 mL

Test item volume = 50.0005 mL - 42.02538 mL = 7.97512 mL

Test item density = 10.1180 g / 7.97512 mL =1.2687 g/mL

 

Third measurement

W0 = 39.3390 g

WP = 48.7331 g

Test item weight = 48.7331 g - 39.3390 g = 9.3941 g

WT = 85.6785 g

Toluene weight = 85.6785 g - 48.7331 g = 36.9454 g

Toluene volume = 36.9454 g / 0.8668 g/mL = 42.62275 mL

Test item volume = 50.0005 mL - 42.62275mL = 7.37775 mL

Test item density = 9.3941 g / 7.37775 mL =1.2733 g/mL

 

Mean density: 1.2730 g/mL

Standard deviation: 4.16E-3 g/mL

Relative standard deviation: 0.33%

 

The relative density of the substance at 20 °C compared to water at 4 °C was not reported, but can be calculated according to EU Test guideline A.3 for relative density Regulation (EC) No 440/2008 and ECHA Guidance on Information Requirements and Chemical Safety Assessment, Chapter R.7a: Endpoint specific guidance.

The density of water at 4 °C (at which temperature, water has its maximum density) is 999.975 kg/m³ (0.999975 g/cm³).

The relative density of the test substance is obtained as follows:

D420 = density of test item at 20 °C / density of water at 4 °C = 1.2730 g/cm³ / 0.999975 g/cm³ = 1.2730

Description of key information

Relative density: 1.273 at 20 °C (OECD Guideline 109, pycnometer method)

Key value for chemical safety assessment

Relative density at 20C:
1.273

Additional information