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Devarda's alloy (CAS # 8049-11-4) is an alloy of aluminium (44% – 46%), copper (49% – 51%) and zinc (4% – 6%).. Devarda's alloy is used as reducing agent in analytical chemistry for the determination of nitrates after their reduction to ammonia under alkaline conditions.
80 milligrams of the dietary mineral zinc, in the form of zinc oxide; and; two milligrams of copper as cupric oxide, added to prevent copper deficiency anemia, a condition associated with high levels of zinc intake. Bausch & Lomb was a collaborator in the study. [2]
For example, comparing the potentials for zinc (-0.75 V) with those of iron (Fe(II) -0.47 V, Fe(III) -0.06 V) it is seen that iron ions are more easily reduced than zinc ions. This is the basis for using zinc to provide anodic protection for large structures made of iron or to protect small structures by galvanization.
Philosophers' wool/nix alba (white snow)/Zinc White – zinc oxide, formed by burning zinc in air, used as a pigment; Plumbago – a mineral, graphite; not discovered in pure form until 1564; Powder of Algaroth – antimony oxychloride, formed by precipitation when a solution of butter of antimony and spirit of salt is poured into water.
Copper(I) fluoride – CuF; Copper(I) oxide – Cu 2 O; Copper(I) sulfate – CuSO 4; Copper(I) sulfide – Cu 2 S; Copper(II) azide – Cu(N 3) 2; Copper(II) borate – Cu 3 (BO 3) 2; Copper(II) carbonate – CuCO 3; Copper(II) chloride – CuCl 2; Copper(II) hydroxide – Cu(OH) 2; Copper(II) nitrate – Cu(NO 3) 2; Copper(II) oxide – CuO ...
An alarming study that had Americans tossing out their black plastic kitchen utensils, toys and to-go packages earlier this month overstated the concern, the researchers admit.
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Catalytic hydrogenation using platinum(IV) oxide (PtO 2) [23] or Raney nickel [24] Iron metal in refluxing acetic acid [25] Samarium diiodide [26] Raney nickel, platinum on carbon, or zinc dust and formic acid or ammonium formate [6] α,β-Unsaturated nitro compounds can be reduced to saturated amines by: Catalytic hydrogenation over palladium ...
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