Neptunium silicide: Difference between revisions
Content deleted Content added
m +{{Silicides}} Tag: Disambiguation links added |
removed Category:Neptunium compounds; added Category:Neptunium(III) compounds using HotCat |
||
| (2 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
{{Chembox |
{{Chembox |
||
| ImageFile = |
| ImageFile = |
||
| ImageSize = |
| ImageSize = |
||
| ImageAlt = |
| ImageAlt = |
||
| PIN = |
| PIN = |
||
| OtherNames = Neptunium disilicide |
| OtherNames = Neptunium disilicide |
||
|Section1={{Chembox Identifiers |
|Section1={{Chembox Identifiers |
||
| index1_label = |
| index1_label = |
||
| index4_label = |
| index4_label = |
||
| CASNo = |
| CASNo = 60862-56-8 |
||
| CASNo_Ref = {{cascite|correct|CAS}} |
| CASNo_Ref = {{cascite|correct|CAS}} |
||
| ChemSpiderID = |
| ChemSpiderID = |
||
| DTXSID = |
| DTXSID = |
||
| UNII_Ref = {{fdacite|changed|FDA}} |
| UNII_Ref = {{fdacite|changed|FDA}} |
||
| UNII = |
| UNII = |
||
| EINECS = |
| EINECS = |
||
| PubChem = |
| PubChem = |
||
| SMILES = [Np].[Si].[Si] |
| SMILES = [Np].[Si].[Si] |
||
| StdInChI = 1S/Np.2Si |
| StdInChI = 1S/Np.2Si |
||
| Line 21: | Line 21: | ||
}} |
}} |
||
|Section2={{Chembox Properties |
|Section2={{Chembox Properties |
||
| Formula = NpSi<sub>2</sub> |
|||
| Np=|Si=2 |
|||
| Appearance = Crystals |
| Appearance = Crystals |
||
| Density = 9.03 |
| Density = 9.03 |
||
| MeltingPtC = |
| MeltingPtC = |
||
| BoilingPtC = |
| BoilingPtC = |
||
| Solubility = insoluble}} |
| Solubility = insoluble}} |
||
|Section3={{Chembox Hazards |
|Section3={{Chembox Hazards |
||
| MainHazards = |
| MainHazards = |
||
| GHSPictograms = |
| GHSPictograms = |
||
| GHSSignalWord = |
| GHSSignalWord = |
||
| HPhrases = |
| HPhrases = |
||
| PPhrases = |
| PPhrases = |
||
| FlashPtC = |
| FlashPtC = |
||
| AutoignitionPt = }} |
| AutoignitionPt = }} |
||
|Section6={{Chembox Related |
|Section6={{Chembox Related |
||
| Line 61: | Line 61: | ||
{{Silicides}} |
{{Silicides}} |
||
[[Category:Neptunium compounds]] |
[[Category:Neptunium(III) compounds]] |
||
[[Category:Silicon compounds]] |
[[Category:Silicon compounds]] |
||
[[Category:Inorganic compounds]] |
[[Category:Inorganic compounds]] |
||
Latest revision as of 11:39, 5 January 2024
| Names | |
|---|---|
| Other names
Neptunium disilicide
| |
| Identifiers | |
3D model (JSmol)
|
|
| |
| |
| Properties | |
| NpSi2 | |
| Appearance | Crystals |
| Density | 9.03 |
| insoluble | |
| Related compounds | |
Related compounds
|
Plutonium silicide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Neptunium silicide is a binary inorganic compound of neptunium and silicon with the chemical formula NpSi
2.[1] The compound forms crystals and does not dissolve in water.[2]
Synthesis[edit]
Heating neptunium trifluoride with powdered silicon in vacuum:[3]
Physical properties[edit]
Neptunium silicide forms crystals[4] of tetragonal crystal system, space group I41/amd, cell parameters: a = 0.396 nm, c = 1.367 nm, Z = 4.[5]
Neptunium disilicide does not dissolve in water.
Chemical properties[edit]
Neptunium disilicide reacts with HCl:[3]
References[edit]
- ^ Donnay, J. D. H.; Nowacki, Werner (1954). Crystal Data: Classification of Substances by Space Groups and their Identification from Cell Dimensions. Geological Society of America. p. 383. ISBN 978-0-8137-1060-0. Retrieved 16 August 2021.
- ^ Koch, Günter (5 October 2013). Transurane: Teil C: Die Verbindungen (in German). Springer-Verlag. p. 245. ISBN 978-3-662-11547-3. Retrieved 16 August 2021.
- ^ a b Sheft, Irving; Fried, Sherman (1950). New Neptunium Compounds. U.S. Atomic Energy Commission, Technical Information Division. p. 4. Retrieved 16 August 2021.
- ^ Zachariasen, William Houlder (1949). The Crystal Structure of Uranium Silicides and of CeSi2, NpSi2, and PuSi2. U.S. Atomic Energy Commission, Technical Information Branch. p. 3. Retrieved 16 August 2021.
- ^ "mp-21298: NpSi2 (tetragonal, I4_1/amd, 141)". materialsproject.org. Retrieved 16 August 2021.