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A traditional method for the manufacture of KBr is the reaction of potassium carbonate with an iron(III, II) bromide, Fe 3 Br 8, made by treating scrap iron under water with excess bromine: [4] 4 K 2 CO 3 + Fe 3 Br 8 8 KBr + Fe 3 O 4 + 4 CO 2 {\displaystyle {\ce {4 K2CO3 + Fe3Br8 -> 8 KBr + Fe3O4 + 4 CO2}}}
Bond energies to bromine tend to be lower than those to chlorine but higher than those to iodine, and bromine is a weaker oxidising agent than chlorine but a stronger one than iodine. This can be seen from the standard electrode potentials of the X 2 /X − couples (F, +2.866 V; Cl, +1.395 V; Br, +1.087 V; I, +0.615 V; At, approximately +0.3 V).
Edwin Wiley Grove (December 27, 1850 – January 27, 1927), commonly known as E. W. Grove, was an American business magnate, entrepreneur, and self-made millionaire.He founded the Paris Medicine Company, creating and producing its most well-known patent medicine products, Grove's Tasteless Chill Tonic and Laxative Bromo Quinine tablets.
Industrially, it is mainly produced by the reaction of hydrogen gas with bromine gas at 200–400 °C with a platinum catalyst. However, reduction of bromine with red phosphorus is a more practical way to produce hydrogen bromide in the laboratory: [2] 2 P + 6 H 2 O + 3 Br 2 → 6 HBr + 2 H 3 PO 3 H 3 PO 3 + H 2 O + Br 2 → 2 HBr + H 3 PO 4
A bromide ion is the negatively charged form (Br −) of the element bromine, a member of the halogens group on the periodic table.Most bromides are colorless. Bromides have many practical roles, being found in anticonvulsants, flame-retardant materials, and cell stains. [3]
Other tablets around the same price point can serve up better video and photos. The rest of its specs are pretty lackluster as well: An Octa-Core Qualcomm MSM8953-3-AB, a paltry two-gigabytes of ...