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Physical & Chemical properties

Appearance / physical state / colour

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Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15 Nov 2018 - 20 Dec 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EPA OPPTS 830.6302 (Color)
Deviations:
not specified
Qualifier:
according to
Guideline:
EPA OPPTS 830.6303 (Physical State)
Deviations:
not specified
Qualifier:
according to
Guideline:
EPA OPPTS 830.6304 (Odor)
Deviations:
not specified
GLP compliance:
yes
Specific details on test material used for the study:
Chemical name: Magnesium potassium fluoride silicate (Mg2.7K0.7Si4O10F2)
Previously known as: magnesium potassium silicon fluoride hydroxide oxide, and referenced as CAS number 273730-58-8
Trade name: MICROMICA
Composition formula: K₀.₇Mg₂.₇Si₄O₁₀F₂
Molecular weight: 403.33 g/mol
Purity of test item: ≥95%
Impurity: <5% water
Lot number: 776A
Physical state at 20°C and 1013 hPa:
solid
Key result
Form:
solid: particulate/powder
Colour:
White (Munsell value: N9.5)
Odour:
odourless
Substance type:
inorganic
Conclusions:
The test item was observed to be a white odourless powder with a Munsell colour of N9.5 at 20 °C and atmospheric pressure.
Executive summary:

The colour, physical state and odour of the test item was assessed in a GLP study performed using test methods US EPA OPPTS 830.6302, 830.6303, 830.6304 respectively. The test item was observed to be a white odourless powder with a Munsell colour of N9.5 at 20 °C and atmospheric pressure.

Description of key information

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid
Form:
solid

Additional information