(bromine)
41Br — • bromine …
42Herbert Henry Dow — (February 26, 1866 Belleville, Ontario, Canada – October 15, 1930) was a Canadian born, American chemical industrialist. He attended the Case Institute of Technology in Cleveland, Ohio, where he became a member of the Phi Kappa Psi fraternity.… …
43Organobromine compound — Organobromine compounds are organic compounds that contain carbon bonded to bromine. The most pervasive is the naturally produced bromomethane. One prominent application is the use of polybrominated diphenyl ethers as fire retardants. A variety… …
44chemical 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… …
45halogen element — ▪ chemical element group Introduction any of the five nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic (periodic law) table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine… …
46Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …
47Halogen addition reaction — A halogen addition reaction is a simple organic reaction where a halogen molecule is added to the carbon–carbon double bond of an alkene functional group.[1] The general chemical formula of the halogen addition reaction is: C=C + X2 → X−C−C−X (X… …
48Interhalogen — The halogens react with each other to form interhalogen compounds.The general formula of most interhalogen compounds is XYn, where n = 1, 3, 5 or 7 (X is the less electronegative of the two halogens). They are all prone to hydrolysis, and ionise… …
49Menachem Lewin — Prof. Menachem Lewin Born 26 March 1918(1918 03 26) Sokoly, Poland Died 18 February 2011( …
50Chlorine — This article is about the chemical element. For the bleach, see Sodium hypochlorite. For the upcoming film, see Chlorine (film). sulfur ← chlorine → argon F ↑ Cl ↓ Br …
