1,1-dimethylurea

Density

Link to relevant study record(s)

Reference

Endpoint:

bulk density

Type of information:

experimental study

Adequacy of study:

key study

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)

GLP compliance:

not specified

Type of method:

pycnometer method

Specific details on test material used for the study:

- Name of test material (as cited in study report): 1,1-Dimethylurea
- Physical state: solid
- Analytical purity: 99.9 %
- Lot/batch No.: 301601
- Storage condition of test material: dry, at room temperature

Key result

Type:

bulk density

Density:

1 241 kg/m³

Temp.:

20 °C

The Determination results of the density of 1,1 -Dimethylurea are shown in the following table:

No.	1	2
Mass of the test item,m[g]	1.7952	1.7927
Mass of thepycnometer with then-hexanestandardat 20℃,m1[g]	46.2437	46.2437
Mass of the pycnometer with the test item and then-hexane standard at 20℃,m2[g]	47.0846	47.0837
Density of the test item,ρ[g/cm^3]	1.2399	1.2420
Average density of the test item [g/cm^3]	1.241

Conclusions:

Using the pycnometer method, a density of 1.241 g/cm3 = 1241 kg/m3 (20°C) was measured. This value is the mean of two independent determinations.

Executive summary:

The density of 1,1 -Dimethylurea was determined according to the method Pycnometer (liquids and solids)” in OECD Guidelines for the Testing of chemicals 109 - “Density of Liquids and Solids”. The density of the test item was calculated based on the following values:

- mass ofthe pycnometer withn-hexanestandard;

- mass of the pycnometer with the test item andn-hexanestandard;

- mass of the test item added in the pycnometer.

Using this method, a density of 1.241 g/cm³= 1241 kg/m3 (20°C) was measured. This value is the mean of two independent determinations.

Description of key information

Using the pycnometer method, a density of 1.241 g/cm^3 = 1241 kg/m^3 (20°C) was measured. This value is the mean of two independent determinations.