Английская Википедия:Antimony(III) sulfate
Шаблон:Chembox Antimony sulfate, Sb2(SO4)3, is a hygroscopic salt formed by reacting antimony or its compounds with hot sulfuric acid. It is used in doping of semiconductors and in the production of explosives and fireworks.[1]
Structure
Antimony(III) sulfate consists of interconnected SbO6 octahedra, which the corners are bonded to the sulfate ion.[2]
Production
Antimony(III) sulfate was first produced in 1827 by the reaction of antimony(III) oxide and 18 molar sulfuric acid at 200 °C:[2]
- Sb2O3 + 3 H2SO4 → Sb2(SO4)3 + 3 H2O
The concentration of the sulfuric acid is important, as a lower concentration will produce basic antimony oxides, while a higher concentration will produce antimony(III) pyrosulfate. The reaction of elemental antimony and 18 M sulfuric acid will also produce antimony(III) sulfate:[1]
- 2 Sb + 6 H2SO4 → Sb2(SO4)3 + 3 SO2 + 6 H2O
Chemical properties
Antimony sulfate is deliquescent, hydrolyzing in moist air and water, producing various basic antimony oxides and antimony(III) oxide. It is soluble in acids.[2][1][3]
Uses
Owing to its solubility, antimony sulfate has uses in the doping of semiconductors.[4] It is also used for coating anodes in electrolysis and in the production of explosives and fireworks.[1]
Safety
Antimony(III) sulfate causes irritation to the skin and mucous membranes.[5]
Natural occurrence
Natural analogue of the exact compound is yet unknown. However, basic hydrated Sb sulfates are known as the minerals klebelsbergite[6][7] and coquandite.[8][7]
References
Шаблон:Antimony compounds Шаблон:Sulfates
- ↑ 1,0 1,1 1,2 1,3 Herbst, Karl Albert et al. (1985) Antimony and antimony compounds in Ullmann's Encyclopedia of Industrial Chemistry 5th ed., vol. A3, p. 70. Шаблон:ISBN.
- ↑ 2,0 2,1 2,2 Шаблон:Cite journal
- ↑ Шаблон:Cite book
- ↑ Method of forming phase change layer, method of manufacturing a storage node using the same, and method of manufacturing phase change memory device using the same – Samsung Electronics Co., Ltd. Freepatentsonline.com (2007-01-02). Retrieved on 2011-12-23.
- ↑ Antimony(III) Sulfate Material Safety Data Sheet Шаблон:Webarchive. Prochemonline.
- ↑ Шаблон:Cite web
- ↑ 7,0 7,1 Шаблон:Cite web
- ↑ Шаблон:Cite web
