oxide catalyst
111Phase Boundary Catalysis — (PBC) in chemistry is a type of heterogeneous catalytic system which facilitates the chemical reaction of a particular chemical component in immiscible phase react on a catalytic active site located at phase boundary. The chemical component is… …
112Cerium — lanthanum ← cerium → praseodymium ↑ Ce ↓ Th …
113aluminum processing — Introduction preparation of the ore for use in various products. Aluminum, or aluminium (Al), is a silvery white metal with a melting point of 660° C (1,220° F) and a density of 2.7 grams per cubic centimetre. The most abundant… …
114chemical industry — Introduction complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives. Although the chemical industry may be described simply as the industry that uses chemistry and… …
115nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …
116platinum group — ▪ chemical element group Introduction six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and …
117Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare …
118Perrhenic acid — Chembox new ImageFile = ChemicalStructureOfPerrhenicAcid.png ImageSize = 150px ImageName = Perrhenic acid ImageFile1 = Perrhenic acid 3D balls.png ImageSize1 = 150px ImageName1 = Ball and stick model of the perrhenic acid molecule IUPACName =… …
119titanium — /tuy tay nee euhm/, n. Chem. a dark gray or silvery, lustrous, very hard, light, corrosion resistant, metallic element, occurring combined in various minerals: used in metallurgy to remove oxygen and nitrogen from steel and to toughen it. Symbol …
120Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …
