Nitromagnesite

Nitromagnesite
Mineralogical name	Nitromagnesite
Chemical name	Magnesium Nitrate Hexahydrate
Trivial name
Chemical formula	Mg(NO3)2•6H2O
Other forms
Crystal system	monoclinic
Crystal structure
Deliquescence humidity 20°C	55.7%
Solubility (g/l) at 20°C	705 g/l
Density (g/cm³)	1.63 g/cm3
Molar volume	157.7 cm3/mol
Molar weight	256.41 g/mol
Transparency	transparent
Cleavage	perfect
Crystal habit
Twinning
Phase transition
Chemical behavior	soluble in alcohol
Comments
Crystal Optics
Refractive Indices	nx = 1.34 ny = 1.506 nz = 1.506
Birefringence	Δ = 0.166
Optical Orientation	negative
Pleochroism
Dispersion
Used Literature
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Hygroscopicity

Table 1: Deliquescence humidities of nitromagnesite at different round temperatures [Steiger.etal:2014]Title: Weathering and Deterioration
Author: Steiger, Michael; Charola A. Elena; Sterflinger, Katja

0°C	10°C	20°C	30°C	40°C	50°C
61.3%r.h.	58.6%r.h.	55.7%r.h.	52.5%r.h.	49.2%r.h.	45.7%r.h.

Literature

[Broul.etal:1981]	Elsevier (eds.) Broul M., Nyvlt J.; Soehnel O. (1981): Solubility in organic two component systems, Elsevier
[Steiger.etal:2014]	Steiger, Michael; Charola A. Elena; Sterflinger, Katja (2014): Weathering and Deterioration. In: Siegesmund S.; Snethlage R. (eds.): Stone in Architecture, Springer Verlag Berlin Heidelberg, 223-316, 10.1007/978-3-642-45155-3_4.

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