Decanoic acid, monoester with glycerol

Density

Administrative data

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

11 - 14 Jul 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

02 October 2012

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

31 May 2008

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht, Mainz, Germany

Type of method:

pycnometer method

Test material

Test material information

Constituent 1

Reference substance name:

Esterification product of glycerol and C8-C12 (even numbered) fatty acids

Molecular formula:

not applicable, substance is UVCB

IUPAC Name:

Esterification product of glycerol and C8-C12 (even numbered) fatty acids

Results and discussion

Density

Density 1

Key result

Type:

relative density

Density:

1.052 other: relative density is dimensionless

Temp.:

20 °C

Density 2

Type:

density

Density:

1.052 g/cm³

Temp.:

20 °C

Remarks on result:

other: result as reporterted in the study report.

Any other information on results incl. tables

All measured values and the corresponding calculation results are given in the following table:

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	38.0045	88.3652	88.3686	44.9454	88.7321
Temperature in °C	20.0	20.0	20.0	20.0	20.0
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	38.0041	88.3702	88.3713	44.2192	88.6839
Temperature in °C	19.6	19.6	19.8	20.0	20.0

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

 

 

The following values were calculated:

First Determination				Error rel.	Error abs.
Temperature	20.0	°C			0.1
Density of water	0.998203	g/cm³		2.00%	0.0002
Volume of Pycnometer	50.4514	cm³
Density of Replacement Liquid	0.9983	g/cm³
Density of Test Item	1.0534	g/cm³		0.0293%	0.0003
Second Determination				Error rel.	Error abs.
Temperature	19.6	°C			0.1
Density of water	0.998305	g/cm³		2.00%	0.0002
Volume of Pycnometer	50.4516	cm³
Density of Replacement Liquid	0.9983	g/cm³
Density of Test Item	1.0512	g/cm³		0.0324%	0.0003

 

 

The final results (mean values) are given in the following table:

Parameter	Value	Unit	Standard Deviation	Relative Standard Deviation
Volume of Pycnometer	50.45	cm³	0.0002	0.00%
Density of Test Item	1.0523	g/cm³	0.0016	0.15%
Density of Test Item	1052.3	kg/m³	1.6	0.15%
Relative Density of Test Item	1.0523		0.0016	0.15%

 

Discussion

The density of the test item was calculated as 1.0523 ± 0.0003 g/cm³ at 20 ± 0.4 °C. This value is the mean of two independent determinations with the maximum error of a single determination.

Standard deviation was 0.0016 g/cm³, showing good correlation of the two determinations.