Benzene-1,3,5-tricarbonyl trichloride

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15-03-2022 to 28-04-2022

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Guideline study performed under GLP. All relevant validity criteria were met.

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

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

inspected: February 2022 ; signed: April 2022

Type of method:

air comparison pycnometer (for solids)

Key result

Type:

relative density

Density:

1.66 other: dimensionless

Temp.:

20 °C

Remarks on result:

other: mean relative density (n=2)

Key result

Type:

density

Density:

1.66 g/cm³

Temp.:

20 °C

Remarks on result:

other: mean density (n=2)

Relative Density:

Replicate 1 = 1.659

Replicate 2 = 1.657

Mean Relative Density (n = 2) = 1.66

Conclusions:

The mean (n=2) relative density of the test item has been determined to be 1.66 at 20.0 ± 0.5°C.

Executive summary:

The relative density was determined using the gas comparison stereopycnometer method within OECD TG 109 and EU Method A.3 under GLP. The test item was dried in a desiccator under vacuum using silica gel as the drying agent at 21.8 ± 0.4°C for 43 hours. With the gas comparison Stereopycnometer method the volume of the test item is measured in helium gas in a calibrated cylinder. On the day of measurement the validity of the gas comparison pycnometer was verified using a calibration ball with a known volume of 6.372350 cm^3. Thereafter, The reference volume, sample chamber volume and vessel volume of the system were determined. The sample cell was filled with test item, weighed and placed in the gas comparison pycnometer. The mean volume of the test item sample was determined (n=5). Thereafter the sample cell was weighed again. The density of the test item was calculated, using sample weight before measurement and mean volume performed in duplicate at 20.0 ± 0.5°C. The relative density of replicate 1: 1.659 and replicate 2: 1.657. The mean relative density of the test item has been determined to be 1.66 at 20.0 ± 0.5°C. The density is 1.66 g/cm3 (or 1.66 x10^3 kg/m^3).

Description of key information

Density: 1.66 g/cm^3 at 20 ± 0.5 °C, OECD TG 109 - gas-comparison pycnometer method, 2022

Key value for chemical safety assessment

Relative density at 20C:

1.66

Additional information

Key study : OECD TG 109, 2022 : The relative density was determined using the gas comparison stereopycnometer method within OECD TG 109 and EU Method A.3 under GLP. The test item was dried in a desiccator under vacuum using silica gel as the drying agent at 21.8 ± 0.4°C for 43 hours. With the gas comparison Stereopycnometer method the volume of the test item is measured in helium gas in a calibrated cylinder. On the day of measurement the validity of the gas comparison pycnometer was verified using a calibration ball with a known volume of 6.372350 cm^3. Thereafter, The reference volume, sample chamber volume and vessel volume of the system were determined. The sample cell was filled with test item, weighed and placed in the gas comparison pycnometer. The mean volume of the test item sample was determined (n=5). Thereafter the sample cell was weighed again. The density of the test item was calculated, using sample weight before measurement and mean volume performed in duplicate at 20.0 ± 0.5°C. The relative density of replicate 1: 1.659 and replicate 2: 1.657. The mean relative density of the test item has been determined to be 1.66 at 20.0 ± 0.5°C. The density is 1.66 g/cm3 (or 1.66 x10^3 kg/m^3).