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Physical & Chemical properties

Appearance / physical state / colour

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Link to relevant study record(s)

Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
November 19, 2015 - December 9, 2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
no guideline followed
Principles of method if other than guideline:
Appearance was determined by visual observation, direct and under a microscope. No guideline was followed but sufficient details were given in the study report.
GLP compliance:
yes (incl. certificate)
Physical state at 20°C and 1013 hPa:
solid
Key result
Form:
powder
Colour:
white
Odour:
other: not determined
Substance type:
inorganic

- Standard (direct) visual observation: a test substance sample was observed to be a medium and fine white powder with clusters.

- Optical microscope analysis with 100x magnification: the particles appeared to be irregular shaped crystals.

- Optical microscope analysis with 400x magnification: the sample was observed to be made up of single crystalline particles.

Conclusions:
The substance is a white powder.

Description of key information

The substance is a white powder.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

Determined in a GLP-compliant study by visual observation.