Ammonium magnesium sulfate
| Names | |
|---|---|
| IUPAC name magnesium;azane;hydrogen sulfate | |
| Other names Diammonium magnesium bis(sulfate) | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.035.242 |
| EC Number |
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PubChem CID | |
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| Properties | |
| H8MgN2O8S2 | |
| Molar mass | 252.50 g·mol−1 |
| Appearance | crystals |
| Density | 1,723 g/cm3 (hexahydrate) |
| soluble | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Ammonium magnesium sulfate is a chemical compound with the chemical formula (NH4)2Mg(SO4)2. It forms hydrates.[1]
Synthesis
The compound is prepared by reduction of ammonium persulfate with magnesium metal.[2]
Physical properties
Ammonium magnesium sulfate forms crystals, soluble in water.
The compound forms a crystallohydrate containing Mg(NH4)2(SO4)2 · 6H2O[3][4]—colorless crystals of monoclinic system, space group P21/c, coordinate parameters a = 0.928 nm, b = 1.257 nm, c = 0.620 nm, β = 107.1°, Z = 4.[5]
Natural occurrence
Ammonium magnesium sulfate hexahydrate naturally occurs as Boussingaultite, a rare mineral of picromerite group, originally described from geothermal fields in Tuscany, Italy, where it occurs together with its iron analogue mohrite.[6]
See also
References
- ^ Specifications and Drawings of Patents Issued from the United States Patent Office. U.S. Government Printing Office. 1902. p. 2755. Retrieved 25 February 2025.
- ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3456. ISBN 978-0-412-30120-9. Retrieved 25 February 2025.
- ^ Armarego, W. L. F.; Chai, Christina Li Lin (2013). Purification of Laboratory Chemicals. Butterworth-Heinemann. p. 559. ISBN 978-0-12-382161-4. Retrieved 25 February 2025.
- ^ "CAS 7785-18-4 Ammonium magnesium sulfate - Alfa Chemistry". alfa-chemistry.com. Retrieved 25 February 2025.
- ^ Kosova, Daria A.; Druzhinina, Anna I.; Tiflova, Lyudmila A.; Monayenkova, Alla S.; Uspenskaya, Irina A. (1 March 2018). "Thermodynamic properties of ammonium magnesium sulfate hexahydrate (NH4)2Mg(SO4)2·6H2O". The Journal of Chemical Thermodynamics. 118: 206–214. doi:10.1016/j.jct.2017.11.016. ISSN 0021-9614. Retrieved 25 February 2025.
- ^ Zhitova, Elena S.; Sheveleva, Rezeda M.; Zolotarev, Andrey A.; Shendrik, Roman Yu; Pankrushina, Elizaveta A.; Turovsky, Konstantin A.; Avdontceva, Margarita S.; Krzhizhanovskaya, Maria G.; Vlasenko, Natalia S.; Zolotarev, Anatoly A.; Rassomakhin, Mikhail A.; Krivovichev, Sergey V. (October 2024). "The Crystal Chemistry of Boussingaultite, (NH4)2Mg(SO4)2·6H2O, and Its Derivatives in a Wide Temperature Range". Minerals. 14 (10): 1052. doi:10.3390/min14101052. ISSN 2075-163X.