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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
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Handbook data are considered from a trusted source. Data have been taken from many sources, including both compilations and the primary literature - where conflicts were found, the value deemed most reliable was chosen. The reference was peer-reviewed. In addition, the reference sources are indicated although not leading to sufficient information on the material & method used.
Qualifier:
no guideline required
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
solid
Form:
other: cubic crystals
Colour:
white
Odour:
other: no data
Substance type:
inorganic
Conclusions:
The CRC Handbook of Chemistry and Physics (80th ed.) describes calcium nitrate (anhydrous) as white cubic hygroscopic crystals.
Endpoint:
appearance / physical state / colour
Type of information:
other: handbook
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Handbook data are considered from a trusted source. Data have been taken from many sources, including both compilations and the primary literature - where conflicts were found, the value deemed most reliable was chosen. The reference was peer-reviewed. In addition, the reference sources are indicated although not leading to sufficient information on the material & method used.
Qualifier:
no guideline required
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
solid
Form:
other: deliquesc granules
Colour:
not mentioned in the handbook.
Odour:
other: no data
Substance type:
inorganic
Conclusions:
The Merck Index (12th ed.) describes calcium nitrate tetrahydrate as deliquesc granules.
Endpoint:
appearance / physical state / colour
Type of information:
other: handbook
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: The preface and introduction to this book (9th Edition) provide no indication that the physico-chemical data has been ‘peer reviewed’. The reference source is not indicated leading to insufficient information on the material & method used.
Qualifier:
no guideline required
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
solid
Form:
other: cubic crystals
Colour:
Colourless
Odour:
other: Not mentioned in the handbook
Substance type:
inorganic
Conclusions:
Sax's Dangerous Properties of Industrial Materials (9th. ed.) describes calcium nitrate (anhydrous) as colorless, cubic hygroscopic crystals.

Description of key information

Combining three handbook results, calcium nitrate could be described as white to colourless cubic hygroscopic crystals (anhydrous form) or deliquescent granules (tetrahydrate form).

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

Handbooks used:

-The CRC Handbook of Chemistry and Physics (80th ed.) describes calcium nitrate (anhydrous) as white cubic hygroscopic crystals.

-The Merck Index (12th ed.) describes calcium nitrate tetrahydrate as deliquesc granules.

-Sax's Dangerous Properties of Industrial Materials (9th. ed.) describes calcium nitrate (anhydrous) as colourless cubic hygroscopic crystals.