Registration Dossier

Diss Factsheets

Physical & Chemical properties

Appearance / physical state / colour

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
March 23, 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: OECD Guideline 102 (Melting point / Melting Range); EU Method A.1 (Melting / Freezing Temperature)
Qualifier:
according to guideline
Guideline:
other: OECD Guideline 103 (Boiling point/boiling range); EU Method A.2 (Boiling Temperature)
Principles of method if other than guideline:
SOP - STR 028
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
Blue
Conclusions:
The test item is a solid at 1013 hPa in a range of 25 °C and 160 °C.
Executive summary:

Method

Differential Scanning Calorimetry (DSC) according to the OECD Test Guidelines 102 and 103.

Results

Between 25 and 160 °C there is a release of imbibition/crystallisation water. Between 244-423 °C is registered an exothermic effect (onset = 282.3 °C, enthalpy = 1673 J/g).

Conclusion

The test item is a solid at 1013 hPa in a range of 25 °C and 160 °C.

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
March 17, 2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Principles of method if other than guideline:
Laser light scattering. The test was performed according to the SOP 071 Ed.03 (Hydro 2000S-A) protocol.
The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Conclusions:
The test substance is a solid at 20 °C and 101325 Pa (MMD= 59.509 µm).
Executive summary:

Methods

The substance has been tested for granulometry by the volumetric distribution.

The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.

Results

MD10 = 9.455 µm

MD50 = 59.509 µm

MD90 = 209.972 µm

Endpoint:
appearance / physical state / colour
Type of information:
other: Qualitative assessment
Adequacy of study:
weight of evidence
Study period:
January 25, 2016
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: All evaluations are based on information about specification (technical standard), experience in dealing with the substance and visual evaluation of several different batches.
Principles of method if other than guideline:
Qualitative assessment
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
Blue
Conclusions:
The substance is a blue powder at 20 °C and 101325 Pa.
Executive summary:

The substance has been evaluated for its appearance. It is a blue powder at 20 °C and 101325 Pa.

Description of key information

Blue powder at 20°C and 1013 hPa.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

The evaluation of physical state and appearance was based on a visual assessment, analytical characterization and DSC analysis.