Absolute of Dipteryx odorata (Fabaceae) obtained from beans by organic solvents treatment and subsequent ethanol extraction

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2019-2020

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)

Version / remarks:

2012

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

2008

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

Inspected on 15-16/11/2017, Signed on 15/05/2018

Type of method:

pycnometer method

Key result

Type:

relative density

Density:

1.141 other: no units

Temp.:

20 °C

Findings

All measured values are given in the following table:

Measured Values

First Determination
Weighing #	m1	m2	m3	m4	m5
Item	Pycn. empty	Pycn.+ H2O	Pycn. + repl.liq.	Pycn. + test item	Pycn. + test item + repl. liq.
Mass in g	38.0060	88.3806	88.3982	68.0943	92.0477
Temperature in °C	20.0	20.0	20.2	20.2	20.2
Second Determination
Weighing #	m1	m2	m3	m4	m5
Item	Pycn. empty	Pycn.+ H2O	Pycn. + repl.liq.	Pycn. + test item	Pycn. + test item + repl. liq.
Mass in g	38.0072	88.3770	88.3986	67.7984	92.2292
Temperature in °C	20.2	20.2	20.2	20.2	19.8

Pycn. = Pycnometer;repl. liq.= replacement liquid

 

For the first determination the test item was in the heating chamber from 10.00h – 13.00h, for the second determination from 7.00h - 10:30h.

Calculated Values

First Determination			Error rel.	Error abs.
Temperature	20.0	°C		0.1
Density of water	0.9982067	g/cm^3	2.00%	0.0002
Volume of Pycnometer	50.4651	cm^3
Density of Replacement Liquid	0.9986	g/cm^3
Density of Test Item	1.1364	g/cm^3	0.0089%	0.0001
Second Determination			Error rel.	Error abs.
Temperature	20.2	°C		0.1
Density of water	0.9981652	g/cm^3	2.00%	0.0002
Volume of Pycnometer	50.4624	cm^3
Density of Replacement Liquid	0.9986	g/cm^3		.
Density of Test Item	1.1459	g/cm^3	0.0090%	0.0001

rel. = relative; abs. = absolute

Presentation of Results

Results of the single determinations with the respective error as well as the mean value and its standard deviation are presented in the following tables:

Results of Single Determinations

Determination	Density in g/cm^3	Error of Determ. in g/cm^3
1	1.1364	0.0001
2	1.1459	0.0001

 

Results – Mean Values

Parameter	Value	Unit	Standard Deviation	Relative Standard Deviation
Volume of Pycnometer	50.46	cm^3	0.0019	0.00%
Density of Test Item	1.1412	g/cm^3	0.0068	0.59%
Density of Test Item	1141.2	kg/m^3	6.8	0.59%
Relative Density of Test Item	1.1412		0.0068	0.59%

Note: All calculations are performed with unrounded values. Therefore. re-calculation with rounded values may lead to slightly different results.

Discussion

The density of the test item was calculated as 1.1412 ± 0.0068 g/cm³at 20.0 ± 0.2°C.

This value is the mean of two independent determinations ± the standard deviation, showing acceptable correlation of the two determinations.

Conclusions:

The density of the test item was calculated as 1.1412 ± 0.0068 g/cm3 at 20.0 ± 0.2°C

Executive summary:

An experimental study, conducted in accordance with conditions recommended in OECD guideline and under GLP, was performed. The density of the test item was calculated as 1.1412 ± 0.0068 g/cm³ at 20.0 ± 0.2°C.

This value is the mean of two independent determinations ± the standard deviation, showing acceptable correlation of the two determinations.

Description of key information

The density of the test item was calculated as 1.1412 ± 0.0068 g/cm3 at 20.0 ± 0.2°C.

Key value for chemical safety assessment

Relative density at 20C:

1.141

Additional information

An experimental study, conducted in accordance with conditions recommended in OECD guideline and under GLP, is performed. It should be considered as a key study. The result should be retained as key data.