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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
density
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Determination in-house at PFW (non-GLP).
Qualifier:
no guideline followed
Principles of method if other than guideline:
The density of the substance has been determined in its molten form. Therefore measuring-cylinders of 100 and 50 ml were weighted and subsequently filled with the molten substance (of 70 degrees Celsius) exactly to 100 or 50 ml. The measuring-cylinders with the substance were weighted again and the differences in weight were determined. This was done at room temperature without additional shaking of the measuring-cylinders. From the differences in weight and the volumes of the measuring-cylinders the average density of the molten substance was determined.
GLP compliance:
no
Type of method:
other: measuring-cylinders
Remarks:
measuring differences in weight and the volumes of measuring-cylinders with and without test item.
Key result
Type:
density
Density:
960 kg/m³
Temp.:
70 °C
Conclusions:
The relative density will be between the bulk density and its density in molten form: 600 < D < 960 kg/m3.
Executive summary:

The density of the substance has been determined in its molten form. Therefore measuring-cylinders of 100 and 50 ml were weighted and subsequently filled with the molten substance (of 70 degrees Celsius) exactly to 100 or 50 ml. The measuring-cylinders with the substance were weighted again and the differences in weight were determined. This was done at room temperature without additional shaking of the measuring-cylinders. From the differences in weight and the volumes of the measuring-cylinders the average density of the molten substance was determined: 960 kg/m3.

The relative density of the substance will be between its bulk density (see the other study record) and its density in molten form: 600 < D < 960 kg/m3.

Description of key information

The density of the substance has been determined by measuring the differences in weight and the volumes of measuring-cylinders when empty and when filled with the test item in its molten form, based on an in-house method. The relative density and the bulk density are 960 and 600 g/L respectively.

Key value for chemical safety assessment

Relative density at 20C:
0.96

Additional information

The difference in bulk and relative density differ considerable and is due to the production process of the test item. Since the test item melts around 54 °C, the relative density can be determined by melting the test item prior to the determination. Strictly speaking, the relative density should be between 600 and 960 g/L, but it should be closer to the molten density than to the bulk density. Hence the 960 g/L has been taken forward in the registration as the relative density. The relative density is less than one and the water-solubility of the test item is very low. Consequently, the substance is likely to float, which is relevant information for the risk assessment.