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The oxide obtained from the basic carbonate is often most useful for catalysis. Basic nickel carbonate can be made by treating solutions of nickel sulfate with sodium carbonate: 4 Ni 2+ + CO 2− 3 + 6 OH − + 4 H 2 O → Ni 4 CO 3 (OH) 6 (H 2 O) 4. The hydrated carbonate has been prepared by electrolytic oxidation of nickel in the presence of ...
Metals have been used in treatments since ancient times. The Ebers Papyrus from 1500BC is the first written account of the use of metals for treatment and describes the use of Copper to reduce inflammation and the use of iron to treat anemia. Sodium vanadate has been used since the early 20th century to treat rheumatoid arthritis.
Zaratite is a bright emerald green nickel carbonate mineral with formula Ni 3 CO 3 (OH) 4 ·4H 2 O. Zaratite crystallizes in the isometric crystal system as massive to mammillary encrustations and vein fillings. It has a specific gravity of 2.6 and a Mohs hardness of 3 to 3.5.
Gaspéite from Widgiemooltha is associated with talc carbonated komatiite-associated nickel sulfide gossans and is probably formed by substitution of nickel into carbonates such as magnesite which are formed by oxidation of the talc-carbonate lithology, and of primary and supergene nickel sulfide minerals.
Nickel hydroxides are used in nickel–cadmium and Nickel–metal hydride batteries. Nickel(II) hydroxide Ni(OH) 2, the main hydroxide of nickel is coloured apple green. It is known as the mineral theophrastite. β-NiO(OH) is a black powder with nickel in the +3 oxidation state.
Magnesium carbonate – MgCO 3; Magnesium chloride – MgCl 2; Magnesium citrate – C 6 H 6 MgO 7; Magnesium oxide – MgO; Magnesium perchlorate – Mg(ClO 4) 2; Magnesium phosphate – Mg 3 (PO 4) 2; Magnesium sulfate – MgSO 4; Magnesium bicarbonate – Mg(HCO 3) 2; Magnesium boride – MgB 6; Magnesium bromide – MgBr 2; Magnesium ...
Nickel fumarate prepared from fumaric acid and nickel carbonate is pale green as a tetrahydrate, and mustard coloured as an anhydride. It decomposes when heated to 300° to 340° in vacuum. Decomposition mostly produces nickel carbide, carbon dioxide, carbon monoxide and methane. But also produced were butanes, benzene, toluene, and organic ...
One of the best-known applications of the pure elements is the use of rubidium and caesium in atomic clocks, of which caesium atomic clocks form the basis of the second. A common application of the compounds of sodium is the sodium-vapour lamp, which emits light very efficiently. Table salt, or sodium chloride, has been used since antiquity.