Registration Dossier

Physical & Chemical properties

Density

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
density, other
Remarks:
density
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
Remarks:
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.
Guideline:
other: not mentioned
Principles of method if other than guideline:
Method followed unknown; data from handbook
GLP compliance:
not specified
Key result
Type:
density
Density:
ca. 2.3 g/cm³
Remarks on result:
other: Anhydrous form. Near room temperature.
Key result
Type:
density
Density:
1.45 g/cm³
Remarks on result:
other: Dihydrate. Near room temperature.
Key result
Type:
density
Density:
1.46 g/cm³
Remarks on result:
other: Hexahydrate. Near room temperature.
Conclusions:
The following densities at approx. room temperature were taken from the CRC Handbook of Chemistry and Physics (80th ed.):
Magnesium nitrate anhydrous: ~2.3 g/cm3
Magnesium nitrate dihydrate: 1.45 g/cm3
Magnesium nitrate hexahydrate: 1.46 g/cm3
Endpoint:
relative density
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
Remarks:
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.
Guideline:
other: not mentioned
Principles of method if other than guideline:
Method followed unknown; data from handbook.
GLP compliance:
not specified
Key result
Type:
relative density
Density:
1.464 g/cm³
Remarks on result:
other: Hexahydrate
Conclusions:
The Merck Index (12th ed.) mentions a relative density of 1.46 for magnesium nitrate hexahydrate.
Endpoint:
relative density
Type of information:
other: handbook
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Guideline:
other: not mentioned
Principles of method if other than guideline:
Method followed unknown; data from handbook.
GLP compliance:
not specified
Key result
Type:
relative density
Density:
2.03 g/cm³
Temp.:
25 °C
Remarks on result:
other: Dihydrate
Key result
Type:
relative density
Density:
1.46 g/cm³
Remarks on result:
other: Hexahydrate

No temperature of measurement for the hexahydrate was given.

Conclusions:
The following densities were taken from Sax's Dangerous Properties of Industrial Materials (9th. ed.):
Density of magnesium dihydrate at 25°C: 2.03 g/cm3
Density of magnesium hexahydrate: 1.46 g/cm3

Description of key information

Combining three handbook results, the relative density of magnesium nitrate (anhydrous) is 2.3.

Key value for chemical safety assessment

Relative density at 20C:
2.3

Additional information

Three different handbooks gave the following results for the (relative) densities of the different form of magnesium nitrate:

-CRC Handbook of Chemistry and Physics (80th ed.): ~2.3 g/cm3 (anhydrous), 1.45 g/cm3 (dihydrate) and 1.46 g/cm3 (hexahydrate)

at approx. room temperature

-The Merck Index (12th ed.): 1.46 (hexahydrate)

-Sax's Dangerous Properties of Industrial Materials (9th. ed.): 2.03 g/cm at 25°C dihydrate and 1.46 g/cm3 for hexahydrate