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Antimony is stable in air at room temperature but, if heated, it reacts with oxygen to produce antimony trioxide, Sb 2 O 3. [12] Antimony is a silvery, lustrous gray metalloid with a Mohs scale hardness of 3, which is too soft to mark hard objects.
aluminothermic reaction: Iron Fe Fe 2+ smelting with coke: Cadmium Cd Cd 2+ Cobalt Co Co 2+ Nickel Ni Ni 2+ Tin Sn Sn 2+ Lead Pb Pb 2+ Antimony Sb Sb 3+ may react with some strong oxidizing acids: heat or physical extraction Bismuth Bi Bi 3+ Copper Cu Cu 2+ reacts slowly with air Tungsten W W 3+ [citation needed] may react with some strong ...
It burns in air with a blue flame. It reacts with incandescence with cadmium, magnesium and zinc chlorates. Mixtures of Sb 2 S 3 and chlorates may explode. [11] In the extraction of antimony from antimony ores the alkaline sulfide process is employed where Sb 2 S 3 reacts to form thioantimonate(III) salts (also called thioantimonite): [12]
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
(Reuters) - China will impose export controls on some antimony products from Sept. 15, it said on Thursday, citing national security, adding to measures imposed by Beijing since last year to curb ...
Fluoroantimonic acid is a mixture of hydrogen fluoride and antimony pentafluoride, containing various cations and anions (the simplest being H 2 F + and Sb F − 6).This mixture is a superacid that, in terms of corrosiveness, is trillions of times stronger than pure sulfuric acid when measured by its Hammett acidity function.
Prices of antimony trioxide in Rotterdam had soared by 228% since the beginning of the year to $39,000 a metric ton on Nov. 28, data from information provider Argus showed. "Everyone will dig in ...
China is a major producer of antimony, and some U.S. policymakers have worried about being overly dependent on China as a source. The mineral's uses include flame retardants, batteries, night ...