Nitronatrite: Difference between revisions
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[[file:NaNO3_a.jpg|thumb|400px|center|Figure2: Deliqueszenz humidity of NaNO<sub>3</sub> (Diagram: Michael Steiger)]] | [[file:NaNO3_a.jpg|thumb|400px|center|Figure2: Deliqueszenz humidity of NaNO<sub>3</sub> (Diagram: Michael Steiger)]] | ||
<br clear=all> | |||
{|border="2" cellspacing="0" cellpadding="4" width="52%" align="left" class="wikitable" | |||
|+''Table 1: Deliquescence himdities of sodium nitrate at different round temperatures <bib id="Steiger etal: 2014"/>'' | |||
|- | |||
|bgcolor = "#F0F0F0" align=center| 0°C | |||
|bgcolor = "#F0F0F0" align=center| 10°C | |||
|bgcolor = "#F0F0F0" align=center| 20°C | |||
|bgcolor = "#F0F0F0" align=center| 30°C | |||
|bgcolor = "#F0F0F0" align=center| 40°C | |||
|bgcolor = "#F0F0F0" align=center| 50°C | |||
|- | |||
|bgcolor = "#FFFFEO" align=center| 80,1%r.F. | |||
|bgcolor = "#FFFFEO" align=center| 77,7%r.F. | |||
|bgcolor = "#FFFFEO" align=center| 75,3%r.F. | |||
|bgcolor = "#FFFFEO" align=center| 72,8%r.F. | |||
|bgcolor = "#FFFFEO" align=center| 70,4%r.F. | |||
|bgcolor = "#FFFFEO" align=center| 68,0%r.F. | |||
|} | |||
<br clear=all> | |||
== Under the polarising microscope == | == Under the polarising microscope == | ||
Revision as of 14:43, 28 January 2015
| Nitronatrite[1][2] | |
.JPG)
| |
| Mineralogical name | Sodium Nitrate |
| Chemical name | Natriumnitrat |
| Trivial name | Nitratine, Nitratite, Soda Niter, Cubic Niter |
| Chemical formula | NaNO3 |
| Other forms | |
| Crystal system | trigonal |
| Crystal structure | |
| Deliquescence humidity 20°C | 75,3% |
| Solubility (g/l) at 20°C | 880 g/l |
| Density (g/cm³) | 2.24-2.29 g/cm3 |
| Molar volume | 37.6 cm3/mol |
| Molar weight | 85 g/mol |
| Transparency | transparent |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | |
| Crystal Optics | |
| Refractive Indices | no = 1.587 ne = 1.336 |
| Birefringence | Δ = 0.251 |
| Optical Orientation | |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
Authtor: Hans-Jürgen schwarz
back to Nitrate
Solubility properties[edit]
Hygroscopicity[edit]
| 0°C | 10°C | 20°C | 30°C | 40°C | 50°C |
| 80,1%r.F. | 77,7%r.F. | 75,3%r.F. | 72,8%r.F. | 70,4%r.F. | 68,0%r.F. |
Under the polarising microscope[edit]
- crystallized on a glass slide
elemination
Nitronatrit, crystallized from aqueous solution on a glass slide
.JPG)
Weblinks
[edit]
- ↑ http://webmineral.com/data/Nitratine.shtml seen on 29.07.2010
- ↑ http://www.mindat.org/min-2916.html seen on 29.07.2010