barium organic compounds
51Resorcinol — IUPAC name …
52Timeline of chemistry — lists important works, discoveries, ideas, inventions, and experiments that significantly changed mankind s understanding of the composition of matter and of the interactions thereof, the modern science known as chemistry. The history of… …
53contrast medium — Med. a radiopaque substance injected into a part of the body, as the stomach or duodenum, to provide a contrasting background for the tissues in an x ray or fluoroscopic examination. [1950 55] * * * Substance comparatively opaque to X rays, which …
54Peroxide — A peroxide is a compound containing an oxygen oxygen single bond. The simplest stable peroxide is hydrogen peroxide. Superoxides, dioxygenyls, ozones and ozonides compound are considered separately. NOTOC Organic chemistry In organic chemistry,… …
55Radiocontrast — agents (also simply contrast agents or contrast materials) are compounds used to improve the visibility of internal bodily structures in an X ray image.Contrast agents are also used in MRI (Magnetic Resonance Imaging). Although MRI is usually… …
56Ames Laboratory — Infobox Laboratory name = Ames Laboratory established = 1947 director = Alexander King city = Ames, IA budget = $30 million type = Unclassified staff = 420 students = 84 operating agency = Iowa State University website = [http://www.ameslab.gov… …
57lubrication — See lubricate. * * * Introduction of any of various substances between sliding surfaces to reduce wear and friction. Lubricants may secondarily control corrosion, regulate temperature, electrically insulate, remove contaminants, or damp shock.… …
58high-pressure phenomena — ▪ physics Introduction changes in physical, chemical, and structural characteristics that matter undergoes when subjected to high pressure. pressure thus serves as a versatile tool in materials research, and it is especially important in… …
59Benzoyl peroxide — Benzoyl peroxide …
60series — 1. A succession of similar objects following one another in space or time. 2. In chemistry, a group of substances, either elements or compounds, having similar properties or differing from each other in composition by a constant ratio. [L. fr.… …
