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Revision as of 13:51, 4 November 2011
The Nitrates[edit]
Author: Hans-Jürgen Schwarz
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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.
Salt | Formula | Solubility at 20°C | Deliqueszenz-humidity | 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 |