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Zinc acetate is a salt with the formula Zn (CH 3 CO 2) 2, which commonly occurs as the dihydrate Zn (CH 3 CO 2) 2 ·2H 2 O. Both the hydrate and the anhydrous forms are colorless solids that are used as dietary supplements. When used as a food additive, it has the E number E650.
Zinc acetylacetonate is an acetylacetonate complex of zinc, with the chemical formula of Zn (C5H7O2)2. The compound is in fact a trimer, Zn 3 (acac) 6, in which each Zn ion is coordinated by five oxygen atoms in a distorted trigonal bipyramidal structure. [5]
Zinc is a chemical element with the symbol Zn and atomic number 30. It is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table .
Metal acetylacetonates are coordination complexes derived from the acetylacetonate anion (CH. 3COCHCOCH−. 3) and metal ions, usually transition metals. The bidentate ligand acetylacetonate is often abbreviated acac. Typically both oxygen atoms bind to the metal to form a six-membered chelate ring. The simplest complexes have the formula M ...
Zinc bromide (Zn Br 2) is an inorganic compound with the chemical formula Zn Br 2. It is a colourless salt that shares many properties with zinc chloride (ZnCl 2), namely a high solubility in water forming acidic solutions, and good solubility in organic solvents. It is hygroscopic and forms a dihydrate ZnBr 2 ·2H 2 O. [2]
Zinc chloride is an inorganic chemical compound with the formula ZnCl 2 · n H 2 O, with n ranging from 0 to 4.5, forming hydrates. Zinc chloride, anhydrous and its hydrates, are colorless or white crystalline solids, and are highly soluble in water. Five hydrates of zinc chloride are known, as well as four forms of anhydrous zinc chloride.
The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1 × 10 −3 kg/mol = 1 g/mol. For normal samples from earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [2] or the conventional atomic weight.
The heptahydrate is isostructural with ferrous sulfate heptahydrate. The solid consists of [Zn(H 2 O) 6] 2+ ions interacting with sulfate and one water of crystallization by hydrogen bonds. Anhydrous zinc sulfate is isomorphous with anhydrous copper(II) sulfate. It exists as the mineral zincosite. [15] A monohydrate is known. [16]