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Antimony metal is oxidized to antimony(III) oxide in furnaces. The reaction is exothermic. Antimony(III) oxide is formed through sublimation and recovered in bag filters. The size of the formed particles is controlled by process conditions in furnace and gas flow. The reaction can be schematically described by: 4 Sb + 3 O 2 → 2 Sb 2 O 3
Antimony also forms a mixed-valence oxide, antimony tetroxide (Sb 2 O 4), which features both Sb(III) and Sb(V). [26] Unlike oxides of phosphorus and arsenic, these oxides are amphoteric, do not form well-defined oxoacids, and react with acids to form antimony salts. Antimonous acid Sb(OH) 3 is unknown, but the conjugate base sodium antimonite ...
The hydrated oxide is insoluble in nitric acid, but dissolves in a concentrated potassium hydroxide solution to give potassium hexahydroxoantimonate(V), or KSb(OH) 6. [6] When heated to 700 °C (1,290 °F), the yellow hydrated pentoxide converts to an anhydrous white solid with the formula Sb 6 O 13, containing both antimony(III) and antimony(V).
Antimony(III) acetate is the ... It can be prepared by the reaction of antimony(III) oxide with acetic anhydride: Sb 2 O 3 + 3 C 4 H 6 O 3 → 2 Sb(CH 3 CO 2) 3 ...
Antimony oxide may refer to any of the following: Diantimony tetroxide, Sb 2 O 4; Antimony trioxide, Sb 2 O 3; Antimony pentoxide, Sb 2 O 5; Antimony ...
It is one of the very few nitrates of antimony. No evidence for a simple trinitrate has been reported. According to X-ray crystallography, its structure consists of cationic layers of antimony oxide/hydroxide with intercalated nitrate anions. This compound is produced by the reaction of antimony(III) oxide and nitric acid at 110 °C. [1]
Antimony(III) sulfate was first produced in 1827 by the reaction of antimony(III) oxide and 18 molar sulfuric acid at 200 °C: [1]. Sb 2 O 3 + 3 H 2 SO 4 → Sb 2 (SO 4) 3 + 3 H 2 O. 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.
Antimony trichloride reacts with organolithium or Grignard reagents to give compounds of the form R 3 Sb: SbCl 3 + 3 RLi (or RMgCl) → R 3 Sb. Stibines are weak Lewis acids and do not form ate complexes. As soft Lewis donors, they see wide use in coordination chemistry [3]: 348 and typically react through oxidative addition: R 3 Sb + Br 2 → ...