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| Formula: |
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| System: | Orthorhombic | |||||||||||
| Name: | In allusion to its composition, being an AMMONIum NITrate. | |||||||||||
Classification of Ammonia-niter | ||||||||||
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Crystallography of Ammonia-niter | ||||||||||
| Crystal System: | Orthorhombic | |||||||||
| Class (H-M): | mmm (2/m 2/m 2/m) - Dipyramidal | |||||||||
| Space Group: | Pmmn {P21/m 21/m 2/n} | |||||||||
| Cell Parameters: | a = 4.93Å, b = 5.44Å, c = 5.73Å | |||||||||
| Ratio: | a:b:c = 0.906 : 1 : 1.053 | |||||||||
| Unit Cell Volume: | V 153.67 ų (Calculated from Unit Cell) | |||||||||
Optical Data of Ammonia-niter | ||||||||||
| Type: | Biaxial (-) | |||||||||
Chemical Properties of Ammonia-niter | ||||||||||
| Formula: |
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| All elements listed in formula: | H, N, O | |||||||||
Other Names for Ammonia-niter | ||||||||||
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Other Information | ||||||||||
| Other Information: | Very soluble in water. Stable form in the range of -18° to 32.2°C. There are 1 high-pressure and 5 low-pressure polymorphs. | |||||||||
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. | |||||||||
References for Ammonia-niter | ||||||||||
| Reference List: | Shepard (1857) American Journal of Science: 24: 124 (as Nitrammite). Winchell, A. (1931) The Microscopic Characters of Artificial Inorganic Solid Substances or Artificial Minerals. Second edition, 403 pp., New York and London: 209. Hendricks, Posnjak, and Merwin (1932) Journal of the American Chemical Society: 54: 2766. West (1932) Journal of the American Chemical Soceiety: 54: 2256. Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 305. | |||||||||
Internet Links for Ammonia-niter | ||||||||||
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