Calicum nitrate

Author: Amelie Stahlbuhk
back to Nitrate

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Calicum nitrate
Mineralogical name	Calcium nitrate
Chemical name	Calcium nitrate
Trivial name
Chemical formula	Ca(NO3)2
Other forms	Ca(NO3)2•2H2O (Calcium nitrate dihydrate) Ca(NO3)2•3H2O (Calcium nitrate trihydrate) Ca(NO3)2•4H2O (Nitrocalcite)
Crystal system
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³)	2.483 g/cm3
Molar volume	66.09 cm3/mol
Molar weight	164.09 g/mol
Transparency
Cleavage
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices
Birefringence
Optical Orientation
Pleochroism
Dispersion
Used Literature
[Robie.etal:1978]Title: Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar pressure and higher temperatures Author: Robie R.A., Hemingway B.S.; Fisher J.A.

Abstract

In this article the salt calcium nitrate will be presented. The behavior regarding solubility an hygroscopicity will be shown for caclium nitrate and the different hydrate states.

Solubility

Figure 1: Solubility of calcium nitrate in water. The molality m [n(Ca(NO₃)₂•xH₂O)•kg(H₂O)^-1] is plotted against the temperature.

Hygroscopcity

Figure 2: Deliquescence behaviour of calcium nitrate in the temperature range from -30 to 80 °C. The water acitivity a_w is plotted against the temperature.

Literature

[Robie.etal:1978]

Robie R.A., Hemingway B.S.; Fisher J.A. (1978): Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar pressure and higher temperatures. In: U.S. Geol. Surv. Bull, 1452 ()

A phase is a physically distinctive form of matter and is characterized by having relatively uniform chemical and physical properties.

concentration given as amount of substance (mol) of the dissolved substance per kilogram solvent; unit: mol•kg-1.