hydrated copper oxide
51Dinitrogen tetroxide — IUPAC name Dinitrogen tetraoxide …
52boron — boronic /boh ron ik, baw , beuh /, adj. /bawr on, bohr /, n. Chem. a nonmetallic element occurring naturally only in combination, as in borax or boric acid, and obtained in either an amorphous or a crystalline form when reduced from its compounds …
53petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …
54Rust — For other uses, see Rust (disambiguation). Colors of rust …
55Pyrotechnic colorant — A Pyrotechnic colorant is a chemical compound which causes a flame to burn with a particular color. These are used to create the colors in fireworks. Some common examples are:ColourCompound nameChemical formulaRedStrontium… …
56Sulfur — This article is about the chemical element. For other uses, see Sulfur (disambiguation). phosphorus ← sulfur → chlorine …
57Thermometric titration — titration systems have pre dominated in this area since the 1970 s. With the advent of cheap computers able to handle the powerful thermometric titration software, development has now reached the stage where easy to use automated thermometric… …
58Cobalt(II) iodide — IUPAC name Cobalt(II) iodide Other names cobaltous iodide …
59Nickel(II) iodide — Nickel(II) iodide …
60hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …
