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Zinc phosphate is an inorganic compound with the formula Zn 3 (PO 4) 2. This white powder is widely used as a corrosion resistant coating on metal surfaces either as part of an electroplating process or applied as a primer pigment (see also red lead ).
A phosphate coating is usually obtained by applying to the steel part a dilute solution of phosphoric acid, possibly with soluble iron, zinc, and/or manganese salts. The solution may be applied by sponging, spraying, or immersion. [6] Phosphate conversion coatings can also be used on aluminium, zinc, cadmium, silver and tin. [7] [8]
Phosphate is an inorganic anion of phosphoric acid OP(OH) 3. There are also organophosphorus compounds with the formula OP ... Zinc phosphate; Zirconium phosphate;
It can also be obtained from the reaction between sodium carbonate, zinc oxide, and ammonium dihydrogen phosphate. [3] Na 2 CO 3 + 2 ZnO + 2 (NH 4)H 2 PO 4 → Zn 2 P 2 O 7 + 2 NaOH + 2 NH 3 + 2 H 2 O + CO 2. It is also produced when a strongly acidic solution of zinc sulfate is heated with sodium pyrophosphate. [4] 2 ZnSO 4 + Na 4 P 2 O 7 → ...
Zinc polycarboxylate was the first cement to bind to tooth structure. [9] It is generally made up of the same powder as zinc phosphate (zinc oxide and up to 10% magnesium oxide) but uses a different liquid – aqueous copolymer of polyacrylic acid (30–40%).
That means, “Whether it’s safe to take zinc every day as a supplement depends on how much zinc is in the supplement and how much you get from your diet,” says Haggans.
Zinc compounds are chemical compounds containing the element zinc which is a member of the group 12 of the periodic table. The oxidation state of zinc in most compounds is the group oxidation state of +2. Zinc may be classified as a post-transition main group element with zinc(II). Zinc compounds are noteworthy for their nondescript appearance ...
Oligonucleotide phosphorothioates (OPS) are modified oligonucleotides where one of the oxygen atoms in the phosphate moiety is replaced by sulfur. They are the basis of antisense therapy , e.g., the drugs fomivirsen (Vitravene), oblimersen , alicaforsen , and mipomersen (Kynamro).
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