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Phosphogypsum is a by-product from the production of phosphoric acid by treating phosphate ore with sulfuric acid according to the following reaction: . Ca 5 (PO 4) 3 X + 5 H 2 SO 4 + 10 H 2 O → 3 H 3 PO 4 + 5 (CaSO 4 · 2 H 2 O) + HX
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Another synthetic process uses Cl 3 PNSiMe 3 as a precursor: [7] n Cl 3 PNSiMe 3--> [Cl 2 PN] n + ClSiMe 3. Because the process is a living cationic polymerization, block copolymers or comb, star, or dendritic architectures are possible. [8] [9] Other synthetic methods include the condensation reactions of organic-substituted phosphoranimines ...
Very fine powder can be combustible. [2] Ferrophosphorus is used in metallurgy as a source of phosphorus for alloying, for deoxidizing the melt and for removal of unwanted compounds into slag. Ferrophosphorus is a byproduct of phosphorus production in submerged-arc furnaces from apatites, by their reduction with carbon. It is formed from the ...
The phosphor coating on monochrome and color CRTs may have an aluminum coating on its rear side used to reflect light forward, provide protection against ions to prevent ion burn by negative ions on the phosphor, manage heat generated by electrons colliding against the phosphor, [324] prevent static build up that could repel electrons from the ...
Spoilers ahead! We've warned you. We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT ...
Kim Appelt, a personal and celebrity stylist, told BI that tailored, relaxed blazers are easy to throw on and wear effortlessly. "This is the ultimate 'power casual' piece, delivering ...
Iron phosphate coatings are commonly used in preparation for painting or powder coating, in order to increase adhesion to the iron or steel substrate, and prevent corrosion, which can cause premature failure of subsequent coating processes. It can also be used for bonding fabrics, wood, and other materials to iron or steel surfaces. [citation ...