Nitrate: Difference between revisions

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== The Nitrates ==
== Nitrate salts ==


Author: [[user:Hschwarz|Hans-Jürgen Schwarz]]  
Author: [[user:Hschwarz|Hans-Jürgen Schwarz]]  
Line 5: Line 5:
<br>  
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In this overview the most frequently occurring salts with nitrate as the anion are listed. The various salt phases are discussed in detail on separate pages, their occurrence and their damage potential is explained and the damage szmptoms are illustrated in an documentation.  
The nitrate salts most frequently found in buildings and monuments are listed. The various salt phases are discussed in detail on separate pages, their occurrence and their deterioration potential is discussed and the weathering patterns are illustrated on separate pages.  




<dpl>
<dpl>
category = Nitrate&Salt
category = Nitrate&Salt
include ={Infobox_Salt}:Formula:Solubility:Deliqueszenz-humidity:Light refraction:Notes
include ={Infobox_Salt}:chemical_Formula:Solubility:Deliqueszenzhumidity:Refractive_Indices:Birefringence:Comments
table=class="wikitable sortable",Salt,Formula,Solubility,Deliqueszenz-humidity,Light refraction,Doppelbrechung,Notes
table=class="wikitable sortable",Salt,Formula,Solubility at 20°C,Deliqueszenz RH at 20°C,Light refraction,Birefringence,Notes
tablerow=bgcolor=lightyellow align=center|%%,bgcolor=lightyellow align=center|%%,bgcolor=lightyellow align=center|%%,bgcolor=lightyellow align=center|%%,bgcolor=lightyellow align=center|%%,bgcolor=lightyellow |%%
tablerow=bgcolor=lightyellow align=center|%%,bgcolor=lightyellow align=center|%%,bgcolor=lightyellow align=center|%%,bgcolor=lightyellow align=center|%%,bgcolor=lightyellow align=center|%%,bgcolor=lightyellow |%%


</dpl>
</dpl>


{| width="100%" cellspacing="0" cellpadding="4" border="2" class="wikitable sortable"
|-
| <font size="2">'''Name'''</font>
| <font size="2">'''Formula'''</font>
| <font size="2">'''Solubility'''</font><br><font size="2">[g/l] 20°C</font>
| <font size="2">'''Deliqueszenz-humidity'''</font>
| <font size="2">'''Light refraction'''/</font><br><font size="2">Birefringence</font>
| <font size="2">'''Notes'''</font>
|-
| [[Nitrocalcite]]
| Ca(NO<sub>3</sub>)<sub>2</sub>•4H<sub>2</sub>O
| 2660
| 50,5(25), 53,6(20), 56,5(10)
| n<sub>x</sub> = 1,465<br>n<sub>y</sub> = 1,498<br><u>n<sub>z</sub> = 1,504</u><br>Δ = 0,039
| &nbsp;
|-
| [[Nitromagnesite]]
| Mg(NO<sub>3</sub>)<sub>2</sub>•6H<sub>2</sub>O
| 420<br>705 (20)
| 51,4(30), 54,4(20), 57,4(10)
| n<sub>x</sub> = 1,34<br>n<sub>y</sub> = 1,506<br><u>n<sub>z</sub> = 1,506</u><br>Δ = 0,166
| &nbsp;
|-
| [[Nitronatrite]]
| NaNO<sub>3</sub>
| 880
| 74,3(25), 75,4(20), 77,5(10)
| n<sub>o</sub> = 1,587<br><u>n<sub>e</sub> = 1,336</u><br>Δ = 0,251
| &nbsp;
|-
| [[Niter]]
| KNO<sub>3</sub>
| 315
| 93,6(25), 94,6(20)
| n<sub>x</sub> = 1,335<br>n<sub>y</sub> = 1,505<br><u>n<sub>z</sub> = 1,506</u><br>Δ = 0,171
| &nbsp;
|-
| [[Nitrammite]]
| NH<sub>4</sub>NO<sub>3</sub>
| 1277<br>1778(20)
| 61,8(25)<br>65 (20)
| n<sub>x</sub> = 1,411-1,416<br>n<sub>y</sub> = 1,605-1,623<br><u>n<sub>z</sub> = 1,630-1,649</u><br>Δ = 0,219-0,233
| <!--stabil zwischen -18 und 32°C, die stabile Phase zwischen 32 und 84 °C ist auch orthorhombisch, ab 50°C wandelt sie sich in eine tetragonale Phase um, die von 84-125°C stabil ist.<br>pH ca. 5-->
|}


[[Category:Nitrate]] [[Category:Hschwarz]] [[Category:R-MSteiger]] [[Category:InReview]]
 
[[Category:Nitrate]] [[Category:Schwarz,Hans-Jürgen]] [[Category:R-MSteiger]] [[Category:approved]]

Latest revision as of 15:50, 28 January 2015

Nitrate salts[edit]

Author: Hans-Jürgen Schwarz
back to SaltWiki:Portal

The nitrate salts most frequently found in buildings and monuments are listed. The various salt phases are discussed in detail on separate pages, their occurrence and their deterioration potential is discussed and the weathering patterns are illustrated on separate pages.


Salt Formula Solubility at 20°C Deliqueszenz RH at 20°C Light refraction Birefringence Notes
Niter KNO3 3.108 mol/kg 93.7 % α = 1.335
β = 1.505
γ = 1.506
Δ = 0.171
Nitrocalcite Ca(NO3)2•4H2O 7.726 mol/kg 53.06% nx = 1.465
ny = 1.498
nz = 1.504
Δ = 0.039
Nitromagnesite Mg(NO3)2•6H2O 4.73 mol/kg 55.7% nx = 1.34
ny = 1.506
nz = 1.506
Δ = 0.166
Nitronatrite NaNO3 10.347 mol/kg 75.3% no = 1.587
ne = 1.336
Δ = 0.251
Calicum nitrate Ca(NO3)2
Calcium nitrate dihydrate Ca(NO3)2•2H2O
Calcium nitrate trihydrate Ca(NO3)2•3H2O
Nitrammite NH4NO3 1787 g/l 65% (20°C), 61.8% (25°C) nx = 1.411-1.416
ny = 1.605-1.623
nz = 1.630-1.649
Δ = 0.219-0.233
Calcium nitrate Ca(NO3)2