Zinc methacrylate

Density

Link to relevant study record(s)

Reference

Endpoint:

density, other

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 11 to 21 June 2012

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:

not specified

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

not specified

GLP compliance:

yes (incl. QA statement)

Type of method:

pycnometer method

Key result

Type:

density

Density:

ca. 1.464 g/cm³

Temp.:

20 °C

Key result

Type:

density

Density:

ca. 1.459 g/cm³

Temp.:

20 °C

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	1.4643	0.0009
2	1.4590	0.0010

Results – Mean Values

Parameter	Value	Unit	Standard Deviation	Relative Standard Deviation
Volume of Pycnometer	24.92	cm^3	0.0042	0.02%
Density of Test Item	1.4617	g/cm^3	0.0038	0.26%
Density of Test Item	1461.7	kg/m^3	3.8	0.26%
Relative Density of Test Item	1.4617		0.0038	0.26%

The density was measured as 1.4617 ± 0.0010 g/cm³at 20 ± 0.5 °C

 This value is the mean of two independent determinations with the maximum error of a single determination.

Standard deviation was 0.0038 g/cm³, showing good correlation of the two determinations.

Conclusions:

The density of the test item zinc methacrylate was calculated as 1.4617 ± 0.0010 g/cm3 at 20.0 ± 0.5 °C, which is the mean of two values. Precision of the value is given as maximal error of a single determination.

Executive summary:

This study was performed in order to determine the density of zinc methacrylate by pycnometer method according to the OECD 109 and EU method A.3. The density is calculated from the difference in weight between a full and empty pycnometer and its known volume. The density of the test item was calculated as 1.4617 ± 0.0010 g/cm³ at 20.0 ± 0.5 °C, which is the mean of two values. Precision of the value is given as maximal error of a single determination. The standard deviation of the two values is only slightly higher than the maximal error of a single determination. One deviation was occured during the study: in the preparation of the replacement liquid the test item was shaken in petroleum for 28 instead of 24 h. The deviation was not deviation from the guideline and assessed as uncritical (Henke, 2013).

Description of key information

The density of the test item zinc methacrylate was calculated as 1.4617 ± 0.0010 g/cm3 at 20.0 ± 0.5°C, which is the mean of two values. Precision of the value is given as maximal error of a single determination.

Key value for chemical safety assessment

Relative density at 20C:

1.462

Additional information

A study was performed in order to determine the density of zinc methacrylate by pycnometer method according to the OECD 109 and EU method A.9. The density is calculated from the difference in the weights of a full and empty pycnometer and its known volume. The density of the test item was calculated as 1.4617 ± 0.0010 g/cm3 at 20.0 ± 0.5°C, which is the mean of two values. Precision of the value is given as maximal error of a single determination. The standard deviation of the two values is only slightly higher than the maximal error of a single determination (Henke, 2013).