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Physical & Chemical properties

Appearance / physical state / colour

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Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Remarks:
well documented study
Qualifier:
no guideline followed
Principles of method if other than guideline:
visual inspection
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
pink
Odour:
odourless
Substance type:
inorganic
Conclusions:
The test substance is a pink, odourless powder.
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1991-07-08 to 1991-07-17
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Qualifier:
no guideline followed
Principles of method if other than guideline:
Methods/Investigations:
- Visual inspection
- Characterization by OES with spark source
- Loss on drying: Sample amount approx. 2 g
- Quantitative element determination by atom-spectrometry: Sodium and potassium determination by atomic absorption spectrometer; Al and Mn by ICP-OES
GLP compliance:
yes
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
pink
Odour:
odourless
Substance type:
inorganic
Conclusions:
The test substance is a coloured ceramic powder containing the following metal oxides: Mn3O4 11.4 %, Al2O3 85.0 %, Na2O 2.4 % and K2O 0.12 %
Appearance: pink solid
Homogeneity: The test substance is homogeneous by visual inspection
Main components: Al, Mn, Na
Weight loss on drying: 3.3 mg/g
Sodium and potassium determination by atomic absorption spectrometer: Na-content is 18 mg/g and K-content is 1 mg/g
Al and Mn by ICP-OES: Al-content is 450 mg/g and Mn-content is 82 mg/g

Description of key information

The test substance is a pink, odourless powder.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information