Pyrolysis Reaction Product of Pinane

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 2018-08-29 to 2018-10-10

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

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

pycnometer method

Type:

density

Density:

0.778 g/cm³

Temp.:

20 °C

Key result

Type:

relative density

Density:

0.778 other: dimensionless

Temp.:

20 °C

Type:

density

Density:

0.768 g/cm³

Temp.:

40 °C

Type:

relative density

Density:

0.768 other: dimensionless

Temp.:

40 °C

The pycnometer was calibrated at 20 and 40 °C. The density of the test item was determined from five replicates at 20 °C and at 40 °C with the determined volume of the pycnometers (24.2441 cm3 and 24.6833 cm3, respectively).

Table 1. Density of the test item at 20 °C

Empty pycnometer, g	Pycnometer with test item, g	Test item in the pycnometer, g	Density of the test item, g/cm3
31.68317	50.53832	18.85515	0.7777
31.68316	50.53767	18.85451	0.7777
31.68315	50.53945	18.85630	0.7778
31.68310	50.53834	18.85524	0.7777
31.68313	50.53743	18.85430	0.7777
Mean:		0.7777
Confidence int. (95 %):		0.00004
RSD (CV %):		0.004

 

Table 2. Density of the test item at 40 °C

Empty pycnometer, g	Pycnometer with test item, g	Test item in the pycnometer, g	Density of the test item, g/cm3
31.68351	50.65550	18.97199	0.7686
31.68451	50.59180	18.90729	0.7660
31.68343	50.63203	18.94860	0.7677
31.68357	50.65309	18.96952	0.7685
31.68349	50.65185	18.96836	0.7685
Mean:		0.7679
Confidence int. (95 %):		0.00137
RSD (CV %):		0.144

 

Conclusions:

The relative density of the test item was determined to be 0.7777 ± 0.00004 at 20 °C and 0.7679 ± 0.00137 at 40 °C.

Executive summary:

A study was conducted according to OECD TG 109, Regulation (EC) No 440/2008 method A.3 and OPPTS 830.7300 to determine the relative density of the test item. The density was determined in five independent determinations at 20 and 40 °C. Using the pycnometer method the density was determined to be 0.7777 ± 0.00004 g/cm3 at 20 °C and the relative density 0.7777 with respect to water at 4 °C, respectively. The density at 40 °C was determined to be 0.7679 ± 0.00137 g/cm3 and the relative density 0.7679 with respect to water at 4 °C, respectively.

Description of key information

The relative density of the test item was determined to be 0.7777 ± 0.00004 at 20 °C and 0.7679 ± 0.00137 at 40 °C.

Key value for chemical safety assessment

Relative density at 20C:

0.778

Additional information

A study was conducted according to OECD TG 109, Regulation (EC) No 440/2008 method A.3 and OPPTS 830.7300 to determine the relative density of the test item. The density was determined in five independent determinations at 20 and 40 °C. Using the pycnometer method the density was determined to be 0.7777 ± 0.00004 g/cm3 at 20 °C and the relative density 0.7777 with respect to water at 4 °C, respectively. The density at 40 °C was determined to be 0.7679 ± 0.00137 g/cm3 and the relative density 0.7679 with respect to water at 4 °C, respectively.