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- Q2622967 subject Q7215205.
- Q2622967 subject Q8680416.
- Q2622967 subject Q8699942.
- Q2622967 abstract "Nitratine (also nitratite), also known as cubic niter (UK: nitre), soda niter or Chile saltpeter (UK: Chile saltpetre), is a mineral, the naturally occurring form of sodium nitrate, NaNO3. Chemically it is the sodium analogue of saltpeter. Nitratine crystallizes in the trigonal system, but rarely occurs as well formed crystals. It is isostructural with calcite. It is quite soft and light with a Mohs hardness of 1.5 to 2 and a specific gravity of 2.24 to 2.29. Its refractive indices are nω=1.587 and nε=1.336.The typical form is as coatings of white, grey to yellowish brown masses. The rare crystals when found typically have the scalenohedral form of the calcite structure. It is found only as an efflorescence in very dry environments. It is very soluble in water such that it is deliquescent and will absorb water out of the air and turn into a puddle of sodium nitrate solution when exposed to humid air. Nitratine was once an important source of nitrates for fertilizer and other chemical uses including fireworks. It has been known since 1845 from occurrences in the Confidence Hills, Southern Death Valley, California and the Atacama Desert, Chile. It is still used in organic farming (where Haber-Bosch ammonia is forbidden) in the US, but prohibited in international organic agriculture.".
- Q2622967 thumbnail Nitratine-548175.jpg?width=300.
- Q2622967 wikiPageExternalLink nitratin.htm.
- Q2622967 wikiPageExternalLink min-2916.html.
- Q2622967 wikiPageExternalLink Nitratine.shtml.
- Q2622967 wikiPageWikiLink Q10972285.
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- Q2622967 wikiPageWikiLink Q453471.
- Q2622967 wikiPageWikiLink Q47141.
- Q2622967 wikiPageWikiLink Q588274.
- Q2622967 wikiPageWikiLink Q7215205.
- Q2622967 wikiPageWikiLink Q81454.
- Q2622967 wikiPageWikiLink Q8680416.
- Q2622967 wikiPageWikiLink Q8699942.
- Q2622967 wikiPageWikiLink Q99.
- Q2622967 name "Nitratine".
- Q2622967 type ChemicalSubstance.
- Q2622967 type Mineral.
- Q2622967 type ChemicalObject.
- Q2622967 type Thing.
- Q2622967 type Q7946.
- Q2622967 comment "Nitratine (also nitratite), also known as cubic niter (UK: nitre), soda niter or Chile saltpeter (UK: Chile saltpetre), is a mineral, the naturally occurring form of sodium nitrate, NaNO3. Chemically it is the sodium analogue of saltpeter. Nitratine crystallizes in the trigonal system, but rarely occurs as well formed crystals. It is isostructural with calcite. It is quite soft and light with a Mohs hardness of 1.5 to 2 and a specific gravity of 2.24 to 2.29.".
- Q2622967 label "Nitratine".
- Q2622967 depiction Nitratine-548175.jpg.
- Q2622967 name "Nitratine".