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Physical & Chemical properties

Appearance / physical state / colour

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Endpoint:
appearance / physical state / colour
Type of information:
other: Handbook data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
Handbook data - no method specified
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Form:
crystalline
Odour:
odourless
Substance type:
inorganic
Conclusions:
Calcium carbonate is an odourless powder or crystals.
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Company statement
Qualifier:
no guideline followed
Principles of method if other than guideline:
Company data describing the colour of calcium carbonate.
GLP compliance:
no
Colour:
Calcium carbonate, in addition to be being a white powder, can also be green and grey in colour.
Conclusions:
The colour of calcium carbonate can be white, green or grey.
Endpoint:
appearance / physical state / colour
Type of information:
other: Handbook data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
Handbook data - no method specified
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Form:
crystalline
Colour:
White (if powder) or colourless (if crystals)
Odour:
odourless
Substance type:
inorganic
Conclusions:
Calcium carbonate is a white powder or colourless crystals.
Endpoint:
appearance / physical state / colour
Type of information:
other: Handbook data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
Handbook data - no method specified
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
crystalline
Form:
powder
Colour:
White
Odour:
odourless
Substance type:
inorganic
Conclusions:
Calcium carbonate is a either an odourless white powder or crystals.
Endpoint:
appearance / physical state / colour
Type of information:
other: Handbook data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
Handbook data - no method specified
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
crystalline
Colour:
White
Odour:
odourless
Substance type:
inorganic
Conclusions:
Calcium carbonate is a white crystalline solid.
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
26 January 2010 to 04 March 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
no guideline required
Principles of method if other than guideline:
The appearance of the test material was determined by visual assessment.
An aliquot of the test material was transferred to a clear glass vessel, equilibrated to 20 ± 0.5 °C and visually inspected under natural light on a white background.
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
Bulk CaCO3
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
White
Substance type:
inorganic
Conclusions:
The appearance of the test material has been visually assessed as a fine white powder which tends to form clumps, at 20 ± 0.5 °C.

Description of key information

Bulk calcium carbonate is a fine white powder which tends to form clumps, at 20 ± 0.5 °C.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

The appearance of bulk calcium carbonate is based on a GLP study (Walker and White, 2010). This result is supported by data from several peer reviewed handbooks.