ZN or Zn may stand for Air Bourbon IATA airline designator Azimuth , a mathematical concept defined as the angle between a reference plane and a point Zenith , the direction pointing directly above a particular location Zettanewton , an SI unit of force Ziehl Neelsen stain , a special bacteriological stain used to identify acid fast organisms ZiffNet , a small, diverse set of online forums and information services, now called ZDNet Zinc , a metal Zombie Nation band , an elektro artist from Germany Zontanoi Nekroi , a battle rap group from Greece Z sub n sub cyclic group sub n sub integers modulo n Modular arithmetic disambig Category Initialisms de ZN fa ZN fr ZN ko ZN it ZN nds Zn pl Zn ro ZN sl ZN sr Zn fi Zn zh ZN ... more details
Alsakharovite Zn is an extremely rare alkaline strontium zinc titanium silicate mineral from the cyclosilicate s class, with formula written as NaSrKZn Ti,Nb sub 4 sub Si sub 4 sub O sub 12 sub sub 2 sub O,OH sub 4 sub 7H sub 2 sub O, from alkaline pegmatite s. It belongs to the labuntsovite group . ref Pekov I. V., Chukanov N. V., Zadov A. E., Rozenberg K. A. and Rastsveateva R. K. 2003 Alsakharovite Zn, NaSrKZn Ti,Nb sub 4 sub Si sub 4 sub O sub 12 sub sub 2 sub O,OH sub 4 sub sup . sup 7H sub 2 sub O, a new mineral of the labuntsovite group from Lovozero Massif, Kola Peninsula. Zapiski Vserossiyskogo mineralogicheskogo obshchestva, 132 1 , pp. 52 58 in Russian http cat.inist.fr ?aModele afficheN&cpsidt 15628765 ref ref http www.mindat.org min 26417.html Mindat ref References references Category Cyclosilicates Category Titanium minerals Category Strontium minerals Category Zinc minerals Category Potassium minerals Category Sodium minerals silicate mineral stub ... more details
Mg Zn Ca metallic glass is a type of amorphous metal . History First produced by vapour deposition techniques, thin films of Metallic bond metallically bonded amorphous solids were initially characterised by X ray diffraction . Despite the significant ramifications to longstanding solidification theory, it was not until 1960 that the first production of amorphous metal from the melt was demonstrated, with splat quenching of near eutectic Au75Si25at. producing fully wikt Special Search vitreous vitreous samples of 10 m thickness. Mg Zn Ca based metallic glasses are a relatively new group of amorphous metals, possessing commercial and technical advantages over early compositions. Gu and co workers produced the first Mg Zn Ca BMG in 2005, reporting high glass forming ability, high strength and most importantly exceptional plasticity physics plasticity . This lanthanide free, Mg based glass attracted immediate interest due to its low density and cost, and particularly because of its uncharacteristically high ductility . This property was unexpected for such compositions, as the constituent elements are found to be of relatively low Poisson ratio , and hence contribute little to the inherent plasticity of the glass. This unlikely asset was seized upon by Li in 2008 who, making use of the Poisson ratio principle, increased Mg content at the expense of Zn to further enhance plasticity. Further improvements were achieved by incremental addition of Ca to the Mg72Zn28 binary composition, producing numerous ternary alloy s along the 350oC isotherm dn date December 2011 of the Mg Zn Ca system. Sources BUCKEL, W. & HILSCH, R. 1954 Influence of the condensation at low temperatures ... Alloys. Nature, 187, 869 870. GU, X., SHIFLET, G. J., GUO, F. Q. & POON, S. J. 2005 Mg Ca Zn bulk ... and mechanical properties of bulk Mg Zn Ca amorphous alloys and amorphous matrix composites. Materials Science and Engineering A, 487, 301 308. See also Materials science DEFAULTSORT Mg Zn Ca metallic ... more details
Zinc arsenide Zn sub 3 sub As sub 2 sub is a binary compound of zinc with arsenic which forms gray tetragonal crystals. Zinc compounds Category Zinc compounds Category Arsenides inorganic compound stub simple Zinc arsenide ... more details
A sacrificial metal is a metal used as a sacrificial anode in cathodic protection that corrodes to prevent a primary metal from corrosion, galvanization or rust ing. Equation When two metals touch each other and water is present, electrolysis occurs. One well known example is the reaction between zinc Zn and iron Fe . Zn atom s ionization ionize as it is more electropositive and is redox oxidized and corrodes. Zn s chem Zn 2 aq 2e oxidation Uses Sacrificial metals are widely used to prevent other metals from rusting, for example food cans. Most of the food can is coated with a layer of metal that is more electropositive than the metal mostly iron inside the food can, preventing the iron contaminating the food with chem Fe 2 ion s. See also multicol Electrolysis Metal in electrochemical series References Reflist Unreferenced date September 2011 Category Electrochemistry Category Corrosion prevention Chemistry stub ... more details
Simplified equations for these complex processes are ZnO H sub 2 sub O 2 NaOH Na sub 2 sub Zn OH sub 4 sub Zn 2 H sub 2 sub O 2 NaOH Na sub 2 sub Zn OH sub 4 sub H sub 2 sub From such solutions, one can crystallize salts of containing the anions Zn OH sub 4 sub sup 2 sup , Zn sub 2 sub OH sub 6 sub sup 2 sup , and Zn OH sub 6 sub sup 4 sup . Na sub 2 sub Zn OH sub 4 sub consists of tetrahedral zincate ion and octahedral sodium cations. ref Synthese und Kristallstruktur von Na sub 2 sub Zn OH sub ... sub 2 sub Zn OH sub 6 sub features zinc in an octahedral coordination sphere. Oxozincates Related oxides ..., M. Jansen Na sub 2 sub ZnO2, Z. Naturforschung 51b 1996 711 4 ref Na sub 2 sub Zn sub 2 sub O sub 3 sub , ref Eine neue Modifikation von Na sub 2 sub Zn sub 2 sub O sub 3 sub , D. Trinschek, M. Jansen , Z. Naturforschung 51b, 1996 , 917 21 ref , Na sub 10 sub Zn sub 4 sub O sub 9 sub . ref Ein neues Oxozinkat mit trigonal planar koordiniertem Zink, D. Trinschek, M. Jansen Na sub 10 sub Zn sub 4 sub ... more details
morefootnotes date February 2011 Naturally occurring zinc Zn is composed of the 5 stable isotope s sup 64 sup Zn, sup 66 sup Zn, sup 67 sup Zn, sup 68 sup Zn, and sup 70 sup Zn with sup 64 sup Zn being ... abundant and stable being sup 65 sup Zn with a half life of 244.26 days, and sup 72 sup Zn ... enriched sup 64 sup Zn, irradiated by the intense high energy neutron flux from an exploding thermonuclear weapon, would transmute into the radioactive isotope sup 65 sup Zn with a half life of 244 days ... variation br mole fraction colspan 3 excitation energy sup 54 sup Zn style text align right 30 style text align right 24 53.99295 43 proton emission 2p sup 52 sup Ni 0 rowspan 2 sup 55 sup Zn rowspan ... 56 sup Zn style text align right 30 style text align right 26 55.97238 28 36 10 ms sup sup sup 56 sup Cu 0 rowspan 2 sup 57 sup Zn rowspan 2 style text align right 30 rowspan 2 style text align right ... rowspan 2 sup sup 35 sup 57 sup Cu rowspan 2 sup 58 sup Zn rowspan 2 style text align right 30 rowspan ... Ni rowspan 2 0 rowspan 2 rowspan 2 sup sup 40 sup 58 sup Cu rowspan 2 sup 59 sup Zn rowspan 2 style ... Zn style text align right 30 style text align right 30 59.941827 11 2.38 5 min sup sup sup 60 sup Cu 0 sup 61 sup Zn style text align right 30 style text align right 31 60.939511 17 89.1 2 s sup sup sup 61 sup Cu 3 2 style text indent 1em sup 61m1 sup Zn colspan 3 style text indent 2em 88.4 1 keV 430 ms 1 2 style text indent 1em sup 61m2 sup Zn colspan 3 style text indent 2em 418.10 15 keV 140 70 ms 3 2 style text indent 1em sup 61m3 sup Zn colspan 3 style text indent 2em 756.02 18 keV 130 ms 5 2 sup 62 sup Zn style text align right 30 style text align right 32 61.934330 11 9.186 13 h sup sup sup 62 sup Cu 0 sup 63 sup Zn style text align right 30 style text align right 33 62.9332116 17 38.47 5 min sup sup sup 63 sup Cu 3 2 sup 64 sup Zn style text align right 30 style text align ... 321 sup 65 sup Zn style text align right 30 style text align right 35 64.9292410 7 243.66 9 d sup ... more details
chembox verifiedrevid 333718296 Name Zinc antimonide Reference ref name hand Citation last Lide first David R. year 1998 title Handbook of Chemistry and Physics edition 87 publication place Boca Raton, FL publisher CRC Press isbn 0 8493 0594 2 pages 4 95 ref ImageFile ZnSbstructure.jpg IUPACName Zinc antimonide OtherNames Section1 Chembox Identifiers CASNo 12039 35 9 Section2 Chembox Properties Formula ZnSb, Zn sub 3 sub Sb sub 2 sub , Zn sub 4 sub Sb sub 3 sub MolarMass 434.06 g mol Appearance silver white orthorhombic crystals Density 6.33 g cm sup 3 sup MeltingPt 565 C BoilingPt BandGap 0.56 eV ZnSb , 1.2eV Zn sub 4 sub Sb sub 3 sub Solubility reacts Section3 Chembox Structure CrystalStruct Orthorhombic , Pearson symbol oP16 SpaceGroup Pbca, No. 61 Section7 Chembox Hazards EUClass not listed Zinc antimonide Zinc Zn Antimony Sb , Zinc Zn sub 3 sub Antimony Sb sub 2 sub , Zinc Zn sub 4 sub Antimony Sb sub 3 sub is an inorganic chemical compound . Like indium antimonide , aluminium antimonide , and gallium antimonide , it is a semiconductor semiconducting intermetallic compound. It is used in transistors , infrared detectors and thermal imagers, as well as magnetoresistive devices. References Refimprove date May 2009 reflist Zinc compounds Category Antimonides Category Zinc compounds inorganic compound stub fa simple Zinc antimonide ... more details
Unreferenced date October 2006 Chembox verifiedrevid 399906783 ImageFile Diisopropylzinc.png ImageSize 120px IUPACName OtherNames Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 11347073 InChI 1 2C3H7.Zn c2 1 3 2 h2 3H,1 2H3 rC6H14Zn c1 5 2 7 6 3 4 h5 6H,1 4H3 InChIKey KDUNMLRPPVCIGP LSPCJBSIAV SMILES1 CC C Zn C C C StdInChI Ref stdinchicite correct chemspider StdInChI 1S 2C3H7.Zn c2 1 3 2 h2 3H,1 2H3 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey KDUNMLRPPVCIGP UHFFFAOYSA N CASNo 625 81 0 PubChem 5207587 SMILES C CH C.C CH C. Zn 2 Section2 Chembox Properties Formula C sub 6 sub H sub 14 sub Zn MolarMass 151.58 g mol Appearance Density MeltingPt BoilingPt Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Diisopropylzinc is an organozinc compound with the chemical formula ZnC sub 6 sub H sub 14 sub . Zinc compounds Category Organozinc compounds Organic compound stub fa ... more details
Kalininite zinc Zn chromium Cr sub 2 sub sulfur S sub 4 sub is a thiospinel mineral found in Russia . References http www.mindat.org min 2138.html Mindat http www.webmineral.com data Kalininite.shtml Webmineral Category Chromium minerals Category Zinc minerals Category Thiospinel group Category Geology of Russia sulfide mineral stub ar it Kalininite ... more details
MedAbbrev Y 0 9 class wikitable sortable scope col Abbreviation scope col Meaning ZD zinc deficiency ZDV zidovudine ZES Zollinger Ellison syndrome ZIFT zygote intrafallopian transfer Zn zinc MedAbbrev Y 0 9 Category Lists of medical abbreviations ... more details
Fe , iodine I , manganese Mn , molybdenum Mo , selenium Se and zinc Zn . Initially, such supplementation ... of dairy cattle highlights that organic forms of Zn are retained better than inorganic sources and so ... a reduction in permitted feed concentrations of several trace metal s Co, Cu, Fe, Mn and Zn ref Commission ... and absence of elemental Zn or Fe. The data suggest that, unlike inorganic Cu, organic ... also achieved higher liver Zn, suggesting less interference at gut absorption sites in comparison .... 81 161 171. ref compared a Zn chelate, a Zn polysaccharide complex and ZnO inorganic zinc oxide in bull .... Compared the bioavailability of Cu and Zn chelates in sheep with the inorganic sulfate forms, at low and high supplementation rates. Copper and Zn chelates at the lower rates caused significantly greater increases in blood plasma concentrations than the corresponding treatments with Zn sulfate ... greater hoof horn Zn content than did Zn sulfate p 0.05 . At the low supplementation rate Zinc chelate achieved better hoof quality than Zn sulfate p 0.05 . The data suggest that Cu and Zn chelates ... Zn forms ref J. P. Ryan, P. Kearns and T. Quinn 2002 Bioavailability of dietary copper and zinc ... Zn in the form of a chelate or as a polysaccharide complex and compared these with ZnO ,zinc oxide, at 2,000 ppm. Feeding lower concentrations of organic Zn greatly decreased the amount of Zn excreted in comparison with inorganic Zn, without loss of growth performance ref M.S. Carlson, C.A. Boren ... A Zn chelate supplement was compared with Zn sulfate in broiler chickens.Weight gain and feed intake increased quadratically p 0.05 with increasing Zn concentrations from the chelate and linearly with Zn sulfate. The relative bioavailability of the Zn chelate was 183 and 157 of Zn sulfate for weight gain and tibia Zn, respectively. The authors concluded that the supplemental concentration of Zn required in corn soy diets for broilers from 1 21 days of age would be 9.8 mg kg diet as Zn chelate ... more details
Generalize date September 2011 Image Zinc zinc oxide thermochemical cycle.jpg 350 px right The Zn ZnO cycle The zinc zinc oxide cycle or Zn ZnO cycle is a two step thermochemical cycle based on zinc and zinc oxide ref http www.solarpaces.org Tasks Task2 SHP.HTM Solar Hydrogen Production from a ZnO Zn Thermo chemical Cycle ref for hydrogen production ref http www.hydrogen.energy.gov pdfs review06 pd 10 weimer.pdf Project PD10 ref with a typical efficiency around 40 . ref http www.switt.ch files technologien Solar 20Hydrogen 20Production 04 014.pdf Novel Method for solar hydrogen generation ref Process description The thermochemical two step water splitting process uses redox systems ref http solar.web.psi.ch data research zno roca Solar thermal ZnO decomposition ref Dissociation chemistry Dissociation Zinc oxide ZnO Zinc Zn 1 2 O sub 2 sub Hydrolysis Zinc Zn Water molecule H sub 2 sub O Zinc oxide ZnO Hydrogen H sub 2 sub For the first endothermic step concentrating solar power is used in which zinc oxide is Thermal decomposition thermally dissociated at convert 1900 C F into zinc and oxygen. In the second non solar exothermic step zinc reacts at convert 427 C F with water and produces hydrogen and zinc oxide. The temperature level is realized by using a solar power tower and a set of heliostat s to collect the solar thermal energy . See also Cerium IV oxide cerium III oxide cycle Copper chlorine cycle Hydrosol 2 Hybrid sulfur cycle Iron oxide cycle Sulfur iodine cycle References reflist External links http www.ltnt.ethz.ch people bburg MRS05 Burg.pdf H2 formation by zinc hydrolysis in a hot wall aerosol flow reactor Category Chemical reactions Category Hydrogen production de Solzinc Verfahren nl Zink zinkoxidecyclus ... more details
PubChem SMILES Section2 Chembox Properties Formula Zn sub 5 sub OH sub 8 sub Cl sub 2 sub H sub 2 sub ... formula Zn sub 5 sub OH sub 8 sub Cl sub 2 sub H sub 2 sub O. It is often referred to as tetrabasic ... is frequently found as a corrosion product of Zn bearing metals. ref name handbookMin http ... simonkolleite.shtml ref ref name Hawthorne Hawthorne, F. C. Sokolova, E. SIMONKOLLEITE, Zn sub 5 sub ... occupied by zinc. The Zn 1 site is coordinated by six hydroxyl OH groups in an octahedral geometry Zn OH sub 6 sub . The Zn 2 site is coordinated by three OH groups, and one Cl atom in a tetrahedral geometry Zn OH sub 3 sub Cl . The Zn OH sub 6 sub octahedra form an edge sharing dioctahedral sheet similar to that observed in dioctahedral micas. On each site of the vacant octahedron, a Zn OH sub ... H sub 2 sub O groups. The Zn OH sub 6 sub octahedra have four long equatorial bonds at 2.157 ... OH groups O 1 H are coordinated by two Zn 1 cations and one Zn 2 cation, whereas the apical OH groups O 2 H are coordinated by three Zn 1 cations. As Zn 1 is six coordinated and Zn 2 is four coordinated, the local bond valence requirements require the Zn 1 O 1 bonds to be considerably longer than the Zn 1 O 2 bonds. The Zn OH sub 3 sub Cl tetrahedron has three short Zn 2 O 1 bonds at 1.950 and one long Zn 2 Cl bond 2.312 Figure 1 . ref name handbookMin http www.handbookofmineralogy.org pdfs ... Hawthorne Hawthorne, F. C. Sokolova, E. SIMONKOLLEITE, Zn sub 5 sub OH sub 8 sub Cl sub 2 sub H sub ..., 40, 939. ref File TBZC1.png center thumb 400px Figure 1. Zn coordination and bonding in Simonkolleite ... II hydroxide chlorides Zn5 OH 8Cl2 H2O and beta Zn OH Cl. J. Mat. Sci. 1994, 29, 5429 ref ref ... of zinc derivatives e Zn OH 2, Zn5 OH 8Cl2 H2O , beta ZnOHCl, and ZnOHF. Can. J. Chem. 1967, 45, 579 ... at 165 210 C produces a mixture of ZnO and an intermediate Zn OH Cl. At 210 300 C, the intermediate Zn OH Cl decomposes to ZnO and ZnCl sub 2 sub . At higher temperature, volatilization of zinc ... more details
sp sup 3 sup d sup 2 sup hybrid orbitals. The ion Zn H sub 2 sub O sub 6 sub sup 2 sup , which is present ... salts of magnesium II which results from the fact that Zn sup 2 sup and Mg sup 2 sup have almost identical ... there is an incomplete d shell, Zn sup 2 sup is best considered to be an ion of a post transition main ..., H. Fritz Schaefer, III, and Gregory H. Robinson year 2005 month title On the Chemistry of ZnZn Bonds, RZn ZnR R 2,6 Pr sup i sup sub 2 sub C sub 6 sub H sub 3 sub N Me C sub 2 sub CH Synthesis ... a Zn &mdash Zn bond analogous to the metal metal bond in mercury I ion, Hg sub 2 sub sup 2 sup ..., Zn sub 5 sub OH sub 6 sub CO sub 3 sub . ref cite book publisher CRC Press year 1994 edition issue ... 3018 X chapter Element 30 Zinc pages 123 124 ref CITEREFHeiserman1992 year 1992 ref Zn s 2H sup sup aq Zn sup 2 sup aq H sub 2 sub The hydrogen ion is reduced by accepting an electron from the reducing ... Zn and S atoms Image Sphalerite unit cell depth fade 3D balls.png thumb 180 px a unit cell of zinc ... , dissolving in acids to give the aqueous Zn sup 2 sup ion and in alkali to give the tetrahedral hydroxo complex, Zn OH sub 4 sub sup 2 sup . Zinc hydroxide, Zn OH sub 2 sub is also amphoteric. Zinc sulfide ... of compounds with the formula MA. Both Zn and S are tetrahedrally coordinated by the other ion. A useful ... Zinc nitride chem Zn 3 N 2 notable for its high melting point ref cite book author Grolier Incorporated ... isbn 0717220532 page 202 ref , zinc phosphide chem Zn 3 P 2 , zinc arsenide chem Zn 3 As 2 and zinc antimonide chem Zn 3 Sb 2 , have various applications. ref cite web url http www.americanelements.com ... 9 issue 2 year 2000 title Peculiarities of interaction in the Zn C system under high pressures ... Zinc nitrate chem Zn NO 3 2 used as oxidizing agent , the chlorate Zinc chlorate chem Zn ClO 3 ... Zn 3 PO 4 2 used as primer paint primer pigment , the molybdate Zinc molybdate chem ZnMoO 4 used as white ... Zn AsO sub 2 sub sub 2 sub colorless powder and the arsenate octahydrate chem Zn AsO 4 2 ... more details
Bearing modulus is a wikt modulus modulus used in Plain bearing journal bearing design. It is a Dimensionless quantity dimensionless number . ref name 2002 A Text Book of Machine Design Firewall Media p 526 cite book last Karwa first Rajendra title A Text Book of Machine Design publisher Firewall Media date 2002 isbn 978 81 7008 833 2 url http books.google.com.au books?id 08FkBSjG2bMC&pg PA526&lpg PA526&dq 22Bearing modulus 22&source bl&ots MaIzaSYAss&sig ydfLBoJEcPlbpsZlVCh1NKwgFJ8&hl en&sa X&ei 4sBT7agLcuQiQeh3Y2WAg&ved 0CNMBEOgBMB4 v onepage&q 22Bearing 20modulus 22&f false accessdate 2 January 2012 ref Formula Bearing Modulus C is C Zn p where Z oil viscosity n speed of rotation rpm p bearing pressure For any given bearing, there is a value for indicated by C, for which the coefficient of friction is at a minimum. The bearing should not be operated at this value of bearing modulus, since a slight decrease in speed or a slight increase in pressure will make the wikt journal Noun part of a shaft or axle that rests on bearings operate in partial lubrication state resulting in high friction, heating and wear. To prevent this, the average value of Bearing modulus should be Zn p 3C or for large fluctuations and heavy impact loads Zn p 15C approx References reflist Category Bearings ... more details
chembox verifiedrevid 402890942 Name Zinc pyrophosphate Reference ref name hand Citation last Lide first David R. author link last2 first2 author2 link publication date date year 1998 title Handbook of Chemistry and Physics edition 87 volume series publication place Boca Raton, FL place publisher CRC Press id isbn 0 8493 0594 2 doi oclc pages 4 96 url accessdate ref ImageFile Zinc pyrophosphate.png ImageSize ImageName Zinc pyrophosphate OtherNames Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 56393 PubChem 62641 InChI 1 H4O7P2.2Zn c1 8 2,3 7 9 4,5 6 h H2,1,2,3 H2,4,5,6 q 2 2 p 4 InChIKey OMSYGYSPFZQFFP XBHQNQODAA SMILES Zn 2 . Zn 2 . O P O O OP O O O StdInChI Ref stdinchicite correct chemspider StdInChI 1S H4O7P2.2Zn c1 8 2,3 7 9 4,5 6 h H2,1,2,3 H2,4,5,6 q 2 2 p 4 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey OMSYGYSPFZQFFP UHFFFAOYSA J CASNo 7446 26 6 Section2 Chembox Properties Formula Zn sub 2 sub P sub 2 sub O sub 7 sub MolarMass 304.72 g mol Appearance white crystalline powder Density 3.75 g cm sup 3 sup MeltingPt BoilingPt Solubility insoluble SolubleOther soluble in dilute acid s Section3 Chembox Structure CrystalStruct Section7 Chembox Hazards EUClass Zinc pyrophospate Zn sub 2 sub P sub 2 sub O sub 7 sub is an inorganic chemical compound . It is useful in gravimetric analysis of zinc. Zinc pyrophosphate is obtained by precipitating zinc as a phosphate, then heating over 1123 K. Fact date May 2009 References Reflist Zinc compounds Category Pyrophosphates Category Zinc compounds inorganic compound stub el fa ... more details
Orphan date February 2009 Depleted zinc oxide DZO is a zinc oxide depleted in the isotopes of zinc zinc isotope with the atomic mass 64, and used in corrosion inhibitor corrosion prevention in nuclear pressurized water reactor s. The depletion of sup 64 sup Zn is necessary, because this isotope is neutron activation transformed into sup 65 sup Zn by neutron capture . sup 65 sup Zn with a half life of 244.26 days emits Gamma ray gamma radiation with 1.115 MeV . ref cite journal last1 Roost first1 E. last2 Funck first2 E. last3 Spernol first3 A. last4 Vaninbroukx first4 R. title The decay of 65Zn journal Zeitschrift f r Physik volume 250 pages 395 year 1972 doi 10.1007 BF01379752 bibcode 1972ZPhy..250..395D issue 5 ref sup 64 sup Zn has a natural abundance of 48.6 , but in DZO it is reduced below 1 . The addition of zinc oxide to the primary water loop of a pressurized water nuclear reactor reduces the corrosion and therefore minimizes the amount of dissolved materials, especially the amount of Cobalt 60 sup 60 sup Co . The isotope separation of zinc is done by gas centrifuge gas centrifugation of diethylzinc . References cite journal title BWR water chemistry a delicate balance doi 10.1680 nuen.40.4.245.39338 first R. L. last Cowan journal Nuclear Energy year 2001 volume 40 issue 4 pages 245&ndash 252 Reflist External links cite web url http www.tracesciences.com depletedzincisotopes.html title Depleted Zinc Isotopes publisher tracesciences.com accessdate 2008 12 13 cite web url http www.nukem.de fileadmin pdf english DepletedZinc.pdf title Depleted Zinc for the Nuclear Industry publisher Nukem accessdate 2008 12 13 Category Nuclear materials Category Zinc compounds Category Oxides Category Corrosion inhibitors de Depleted Zinc Oxide fr DZO ... more details
Generalize date September 2011 File Iron Oxide Cycle.svg thumb Simplified diagram of the iron oxide cycle The iron oxide cycle Fe sub 3 sub O sub 4 sub FeO is a two step thermochemical cycle proposed for use for hydrogen production . ref http www.hydrogen.energy.gov pdfs review06 pd 10 weimer.pdf Project PD10 ref Process description The thermochemical two step water splitting process uses redox systems. The two iron oxide cycles under research ref http www.stobbe.com library hydrogen ASME SOL 05 1052 1.pdf Solar hydrogen production by a two step cycle based on mixed iron oxides ref are Mn sub 0.5 sub Zn sub 0.5 sub Fe sub 2 sub O sub 4 sub yH sub 2 sub O Mn sub 0.5 sub Zn sub 0.5 sub Fe sub 2 sub O sub 4 y sub yH sub 2 sub Mn sub 0.5 sub Zn sub 0.5 sub Fe sub 2 sub O sub 4 y sub Mn sub 0.5 sub Zn sub 0.5 sub Fe sub 2 sub O sub 4 sub y 2O sub 2 sub The temperature level is realized by using a solar power tower and a set of heliostat s to collect the solar thermal energy . See also Cerium IV oxide cerium III oxide cycle Copper chlorine cycle Hybrid sulfur cycle Hydrosol 2 Sulfur iodine cycle Zinc zinc oxide cycle References reflist External links http solar.web.psi.ch data closedProjects Solar hydrogen from iron oxide based thermochemical cycles DEFAULTSORT Iron Oxide Cycle Category Chemical reactions Category Hydrogen production ... more details
Gomberg reaction may refer to Gomberg Bachmann reaction , an aryl aryl coupling reaction via a diazonium salt . Gomberg Free radical reaction , a reaction in which triphenylmethyl radical is prepared by treating triphenylmethyl chloride with a metal like Silver Ag or Zinc Zn in presence of diethyl ether or benzene . See also Moses Gomberg , the scientist whom the reaction names honor. disambig ... more details
Distinguish zincite In chemistry the term zincate may refer to a salt containing Zn OH sub 4 sub sup 2 sup ,also called the tetrahydroxozincate ion. It is an ore of Zinc. Examples include calcium zincate CaZn OH sub 4 sub .2H sub 2 sub O ref cite journal doi 10.1149 1.2108376 title Physico Chemical Properties of Calcium Zincate year 1986 author Sharma, Ram A. journal Journal of the Electrochemical Society volume 133 pages 2215 issue 11 ref or Na sub 2 sub Zn OH sub 4 sub ref cite journal doi 10.1002 SICI 1521 3749 199901 625 1 48 AID ZAAC48 3.0.CO 2 L title Synthese und Kristallstruktur von Na2Zn OH 4 year 1999 author Stahl, R. journal Zeitschrift f r anorganische und allgemeine Chemie volume 625 pages 48 last2 Niewa first2 R. last3 Jacobs first3 H. ref or the polymeric anion Zn OH sub 3 sub sup sup in for example NaZn OH sub 3 sub H sub 2 sub O ref cite journal title Synthese und Kristallstruktur von NaZn OH sub 3 sub H sub 2 sub O und NaZn OH sub 3 sub author R. Stahl, H. Jacobs journal Zeitschrift f r anorganische und allgemeine Chemie volume 624 issue 1 pages 25 29 doi 10.1002 SICI 1521 3749 199801 624 1 25 AID ZAAC25 3.0.CO 2 8 year 1998 ref an alkali solution prepared from dissolving zinc metal, zinc hydroxide or zinc oxide which contains various anionic species such as Zn OH sub 4 sub sup 2 sup . Such solutions are used in the plating industry. an oxide containing zinc and a less electronegative element e.g. Na sub 2 sub ZnO sub 2 sub , ref cite journal author D. Trinschek ... and Surface Finishers Society, , William Andrew Inc., ISBN 0936569077 ref 3 Zn OH sub 4 sub sup 2 sup 2 Al 3 Zn 2 Al OH sub 4 sub sup sup 4 OH sup sup It can also refer to alkaline solutions ..., Zn OH sub 4 sub sup 2 sup and tetranitratozincate, Zn NO sub 3 sub sub 4 sub sup 2 sup . More ... of zinc oxide ZnO or zinc hydroxide Zn OH sub 2 sub contain Zn OH sub 4 sub sup 2 sup . ref cite journal doi 10.1021 j100031a026 title EXAFS Investigations of Zn II in Concentrated Aqueous Hydroxide ... more details
Pinchbeck is a form of brass , an alloy of copper and zinc , mixed in proportions so that it closely resembles gold in appearance. It was invented in the 18th century by Christopher Pinchbeck , a London clockmaker. Since gold was only sold in 18 carat quality at that time, the development of pinchbeck allowed ordinary people to buy gold effect jewelry on a budget. The inventor allegedly made pinchbeck jewellery clearly labelled as such. Pinchbeck jewellery was used in places like stagecoach es where there was a risk of Highwayman theft . Later dishonest jewellers passed pinchbeck off as gold over the years it came to mean a cheap and tawdry imitation of gold. ref http www.worldwidewords.org weirdwords ww pin1.htm World Wide Words, Pinchbeck ref Pinchbeck typically comprises copper and zinc in ratios between 89 Cu, 11 Zn and 93 Cu, 7 Zn. Citation needed date April 2010 See also Prince s metal References Reflist Wiktionary pinchbeck DEFAULTSORT Pinchbeck Alloy Category Copper alloys alloy stub io Krizokalko it Princisbecco ro Pinchbeck ... more details
phosphate include minerals hopeite and parahopeite , Zn sub 3 sub PO sub 4 sub sub 2 sub 4H sub 2 sub O. A somewhat similar mineral is natural hydrous zinc phosphate called tarbuttite , Zn sub 2 sub PO sub 4 sub OH . Both are known from oxidation zones of Zn ore beds and were formed through oxidation ... more details
, a Stable Compound of Zn I with a ZnZn Bond journal Science journal Science doi 10.1126 ... between decamethylzincocene Zn C sub 5 sub Me sub 5 sub sub 2 sub and diethylzinc ZnEt sub 2 sub . ref name ResaCarmona The analogous reaction of zincocene Zn C sub 5 sub H sub 5 sub sub 2 sub with diethylzinc ..., CH3 Zn C5H5 , determined by gas phase electron diffraction issue 2 ref Therefore, the stabilizing .... The organozinc precursor is important. Diphenylzinc Zn C sub 6 sub H sub 5 sub sub 2 sub , despite ... 5 sub ZnEt and decamethyldizincocene are produced from the reaction between Zn sup 5 sup C sub 5 sub ..., if the reaction is conducted in diethyl ether at 10 C, Zn sub 2 sub sup 5 sup C sub 5 sub ... sup 5 sup C sub 5 sub Me sub 5 sub ZnEt and Zn sub 2 sub sup 5 sup C sub 5 sub Me sub 5 sub sub ... radical reaction involving the combination of two sup 5 sup C sub 5 sub Me sub 5 sub Zn radicals ... between each Zn atom and the center of the cyclopentadienyl ring attached to it is approximately 2.04 and the Zn C ring distances range from 2.27 to 2.30 . ref name GrirraneResa The ZnZn bond distance is 2.035 , which indicates considerably strong bonding between the two zinc atoms ... is essentially linear with ZnZn bond angles of approximately 177 ref name GrirraneResa Absence ... in the ZnZn bonding with approximately 88 bonding character concentrated between the Zn ... more details
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