Standard X-Ray Diffraction Powder Patterns
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Aldrich FT-IR Collection Edition I Library
Aldrich FT-IR Collection Edition I Library Library Listing – 10,505 spectra This library is the original FT-IR spectral collection from Aldrich. It includes a wide variety of pure chemical compounds found in the Aldrich Handbook of Fine Chemicals. The Aldrich Collection of FT-IR Spectra Edition I library contains spectra of 10,505 pure compounds and is a subset of the Aldrich Collection of FT-IR Spectra Edition II library. All spectra were acquired by Sigma-Aldrich Co. and were processed by Thermo Fisher Scientific. Eight smaller Aldrich Material Specific Sub-Libraries are also available. Aldrich FT-IR Collection Edition I Index Compound Name Index Compound Name 3515 ((1R)-(ENDO,ANTI))-(+)-3- 928 (+)-LIMONENE OXIDE, 97%, BROMOCAMPHOR-8- SULFONIC MIXTURE OF CIS AND TRANS ACID, AMMONIUM SALT 209 (+)-LONGIFOLENE, 98+% 1708 ((1R)-ENDO)-(+)-3- 2283 (+)-MURAMIC ACID HYDRATE, BROMOCAMPHOR, 98% 98% 3516 ((1S)-(ENDO,ANTI))-(-)-3- 2966 (+)-N,N'- BROMOCAMPHOR-8- SULFONIC DIALLYLTARTARDIAMIDE, 99+% ACID, AMMONIUM SALT 2976 (+)-N-ACETYLMURAMIC ACID, 644 ((1S)-ENDO)-(-)-BORNEOL, 99% 97% 9587 (+)-11ALPHA-HYDROXY-17ALPHA- 965 (+)-NOE-LACTOL DIMER, 99+% METHYLTESTOSTERONE 5127 (+)-P-BROMOTETRAMISOLE 9590 (+)-11ALPHA- OXALATE, 99% HYDROXYPROGESTERONE, 95% 661 (+)-P-MENTH-1-EN-9-OL, 97%, 9588 (+)-17-METHYLTESTOSTERONE, MIXTURE OF ISOMERS 99% 730 (+)-PERSEITOL 8681 (+)-2'-DEOXYURIDINE, 99+% 7913 (+)-PILOCARPINE 7591 (+)-2,3-O-ISOPROPYLIDENE-2,3- HYDROCHLORIDE, 99% DIHYDROXY- 1,4- 5844 (+)-RUTIN HYDRATE, 95% BIS(DIPHENYLPHOSPHINO)BUT 9571 (+)-STIGMASTANOL -
The Behavior of Molybdenum., Tungsten, and Titanium
The behavior of molybdenum, tungsten, and titanium in the porphyry copper environment Item Type text; Dissertation-Reproduction (electronic) Authors Kuck, Peter Hinckley Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 08/10/2021 00:24:06 Link to Item http://hdl.handle.net/10150/565421 THE BEHAVIOR OF MOLYBDENUM., TUNGSTEN, AND TITANIUM IN THE PORPHYRY COPPER ENVIRONMENT Peter' 'Hinckley Kuck A Dissertation Submitted to the Faculty of the DEPARTMENT OF GEOSCIENCES. In Partial.Fulfillment of the Requirements. ' ■ For the Degree of DOCTOR OF PHILOSOPHY In the Graduate College ■ THE UNIVERSITY OF ARIZONA 1 9 7 8 THE UNIVERSITY OF ARIZONA GRADUATE COLLEGE I hereby recommend that this dissertation prepared under my Peter Hinckley Kuck direction by ___________ , , The Behavior of Molybdenum, Tungsten, and Titanium entitled ________________________________________________________ in the Porphyry Copper Environment be accepted as fulfilling the dissertation requirement for the Doctor of Philosophy degree of _______________________________________________________ Dissertation Director Date As members of the Final Examination Committee, we certify that we have read this dissertation and agree that it may be presented for final defense. \ R A j r i A hi / 7IT 2 / 1 r 7 - Final approval and acceptance of this dissertation is contingent on the candidate's adequate performance and defense thereof at the final oral examination. STATEMENT BY AUTHOR This dissertation has been submitted in partial fulfillment of requirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of. -
Phase Equilibria and Thermodynamic Properties of Minerals in the Beo
American Mineralogist, Volwne 71, pages 277-300, 1986 Phaseequilibria and thermodynamic properties of mineralsin the BeO-AlrO3-SiO2-H2O(BASH) system,with petrologicapplications Mlnx D. B.qnroN Department of Earth and SpaceSciences, University of California, Los Angeles,Los Angeles,California 90024 Ansrru,cr The phase relations and thermodynamic properties of behoite (Be(OH)r), bertrandite (BeoSirOr(OH)J, beryl (BerAlrSiuO,r),bromellite (BeO), chrysoberyl (BeAl,Oo), euclase (BeAlSiOo(OH)),and phenakite (BerSiOo)have been quantitatively evaluatedfrom a com- bination of new phase-equilibrium, solubility, calorimetric, and volumetric measurements and with data from the literature. The resulting thermodynamic model is consistentwith natural low-variance assemblagesand can be used to interpret many beryllium-mineral occurTences. Reversedhigh-pressure solid-media experimentslocated the positions of four reactions: BerAlrSiuO,,: BeAlrOo * BerSiOo+ 5SiO, (dry) 20BeAlSiOo(OH): 3BerAlrsi6or8+ TBeAlrOo+ 2BerSiOn+ l0HrO 4BeAlSiOo(OH)+ 2SiOr: BerAlrSiuO,,+ BeAlrOo+ 2H2O BerAlrSiuO,,+ 2AlrSiOs : 3BeAlrOa + 8SiO, (water saturated). Aqueous silica concentrationswere determined by reversedexperiments at I kbar for the following sevenreactions: 2BeO + H4SiO4: BerSiOo+ 2H2O 4BeO + 2HoSiOo: BeoSirO'(OH),+ 3HrO BeAlrOo* BerSiOo+ 5H4Sio4: Be3AlrSiuOr8+ loHro 3BeAlrOo+ 8H4SiO4: BerAlrSiuOrs+ 2AlrSiO5+ l6HrO 3BerSiOo+ 2AlrSiO5+ 7H4SiO4: 2BerAlrSiuOr8+ l4H2o aBeAlsioloH) + Bersio4 + 7H4sio4:2BerAlrsiuors + 14Hro 2BeAlrOo+ BerSiOo+ 3H4SiOo: 4BeAlSiOr(OH)+ 4HrO. -
Bismuth Antimony Telluride
ci al S ence Mahajan et al., J Material Sci Eng 2018, 7:4 ri s te & a E M n DOI: 10.4172/2169-0022.1000479 f g o i n l e a e n r r i n u g o Journal of Material Sciences & Engineering J ISSN: 2169-0022 Research Article Article OpenOpen Access Access Study and Characterization of Thermoelectric Material (TE) Bismuth Antimony Telluride Aniruddha Mahajan1*, Manik Deosarkar1 and Rajendra Panmand2 1Chemical Engineering Department, Vishwakarma Institute of Technology, Pune, India 2Centre for Materials Electronics and Technology (C-MET), Dr. Homi Bhabha Road, Pune, India Abstract Thermoelectric materials are used to convert the heat to electricity with no moving parts, in the present work an attempt has been made to prepare it for power generation function. Bismuth antimony telluride nanopowders were prepared by using mechanochemical method. Three different materials; Bismuth Telluride, (Bi0.75Sb0.25)2Te 3 and (Bi0.5Sb0.5)2Te 3 were synthesized. XRD and TEM analysis was carried out to confirm the results. The particle size of the material was determined by using FESEM analysis. The two alloys of Bismuth Telluride such prepared were converted in the pellet form using vacuum hydraulic pressure and their Seebeck coefficients were determined to test the material suitability for its use as a thermoelectric device. Their power factor measurement and Hall effect measurements were carried out at room temperature. Keywords: Bismuth telluride; Mechanochemical method; energy in one form into another. Use of TE solid materials Applications Nanoparticals; Seebeck coefficients in heat pump and refrigeration is well known [14] and it is now expanded such as cooled seats in luxury automobiles [15]. -
Standard X-Ray Diffraction Powder Patterns
NBS MONOGRAPH 25 — SECTION 1 Standard X-ray Diffraction U.S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS THE NATIONAL BUREAU OF STANDARDS Functions and Activities The functions of the National Bureau of Standards are set forth in the Act of Congress, March 3, 1901, as amended by Congress in Public Law 619, 1950. These include the development and maintenance of the national standards of measurement and the provision of means and methods for making measurements consistent with these standards; the determination of physical constants and properties of materials; the development of methods and instruments for testing materials, devices, and structures; advisory services to government agencies on scien- tific and technical problems; invention and development of devices to serve special needs of the Government; and the development of standard practices, codes, and specifications. The work includes basic and applied research, development, engineering, instrumentation, testing, evaluation, calibration services, and various consultation and information services. Research projects are also performed for other government agencies when the work relates to and supplements the basic program of the Bureau or when the Bureau's unique competence is required. The scope of activities is suggested by the listing of divisions and sections on the inside of the back cover. Publications The results of the Bureau's research are published either in the Bureau's own series of publications or in the journals of professional and scientific societies. The Bureau itself publishes three periodicals available from the Government Printing Office: The Journal of Research, published in four separate sections, presents complete scientific and technical papers; the Technical News Bulletin presents summary and preliminary reports on work in progress; and Basic Radio Propagation Predictions provides data for determining the best frequencies to use for radio communications throughout the world. -
Metamorphism of Sedimentary Manganese Deposits
Acta Mineralogica-Petrographica, Szeged, XX/2, 325—336, 1972. METAMORPHISM OF SEDIMENTARY MANGANESE DEPOSITS SUPRIYA ROY ABSTRACT: Metamorphosed sedimentary deposits of manganese occur extensively in India, Brazil, U. S. A., Australia, New Zealand, U. S. S. R., West and South West Africa, Madagascar and Japan. Different mineral-assemblages have been recorded from these deposits which may be classi- fied into oxide, carbonate, silicate and silicate-carbonate formations. The oxide formations are represented by lower oxides (braunite, bixbyite, hollandite, hausmannite, jacobsite, vredenburgite •etc.), the carbonate formations by rhodochrosite, kutnahorite, manganoan calcite etc., the silicate formations by spessartite, rhodonite, manganiferous amphiboles and pyroxenes, manganophyllite, piedmontite etc. and the silicate-carbonate formations by rhodochrosite, rhodonite, tephroite, spessartite etc. Pétrographie and phase-equilibia data indicate that the original bulk composition in the sediments, the reactions during metamorphism (contact and regional and the variations and effect of 02, C02, etc. with rise of temperature, control the mineralogy of the metamorphosed manga- nese formations. The general trend of formation and transformation of mineral phases in oxide, carbonate, silicate and silicate-carbonate formations during regional and contact metamorphism has, thus, been established. Sedimentary manganese formations, later modified by regional or contact metamorphism, have been reported from different parts of the world. The most important among such deposits occur in India, Brazil, U.S.A., U.S.S.R., Ghana, South and South West Africa, Madagascar, Australia, New Zealand, Great Britain, Japan etc. An attempt will be made to summarize the pertinent data on these metamorphosed sedimentary formations so as to establish the role of original bulk composition of the sediments, transformation and reaction of phases at ele- vated temperature and varying oxygen and carbon dioxide fugacities in determin- ing the mineral assemblages in these deposits. -
Geochemical Modeling of Iron and Aluminum Precipitation During Mixing and Neutralization of Acid Mine Drainage
minerals Article Geochemical Modeling of Iron and Aluminum Precipitation during Mixing and Neutralization of Acid Mine Drainage Darrell Kirk Nordstrom U.S. Geological Survey, Boulder, CO 80303, USA; [email protected] Received: 21 May 2020; Accepted: 14 June 2020; Published: 17 June 2020 Abstract: Geochemical modeling of precipitation reactions in the complex matrix of acid mine drainage is fundamental to understanding natural attenuation, lime treatment, and treatment procedures that separate constituents for potential reuse or recycling. The three main dissolved constituents in acid mine drainage are iron, aluminum, and sulfate. During the neutralization of acid mine drainage (AMD) by mixing with clean tributaries or by titration with a base such as sodium hydroxide or slaked lime, Ca(OH)2, iron precipitates at pH values of 2–3 if oxidized and aluminum precipitates at pH values of 4–5 and both processes buffer the pH during precipitation. Mixing processes were simulated using the ion-association model in the PHREEQC code. The results are sensitive to the solubility product constant (Ksp) used for the precipitating phases. A field example with data on discharge and water composition of AMD before and after mixing along with massive precipitation of an aluminum phase is simulated and shows that there is an optimal Ksp to give the best fit to the measured data. Best fit is defined when the predicted water composition after mixing and precipitation matches most closely the measured water chemistry. Slight adjustment to the proportion of stream discharges does not give a better fit. Keywords: geochemical modeling; acid mine drainage; iron and aluminum precipitation; schwertmannite; basaluminite 1. -
Washington State Minerals Checklist
Division of Geology and Earth Resources MS 47007; Olympia, WA 98504-7007 Washington State 360-902-1450; 360-902-1785 fax E-mail: [email protected] Website: http://www.dnr.wa.gov/geology Minerals Checklist Note: Mineral names in parentheses are the preferred species names. Compiled by Raymond Lasmanis o Acanthite o Arsenopalladinite o Bustamite o Clinohumite o Enstatite o Harmotome o Actinolite o Arsenopyrite o Bytownite o Clinoptilolite o Epidesmine (Stilbite) o Hastingsite o Adularia o Arsenosulvanite (Plagioclase) o Clinozoisite o Epidote o Hausmannite (Orthoclase) o Arsenpolybasite o Cairngorm (Quartz) o Cobaltite o Epistilbite o Hedenbergite o Aegirine o Astrophyllite o Calamine o Cochromite o Epsomite o Hedleyite o Aenigmatite o Atacamite (Hemimorphite) o Coffinite o Erionite o Hematite o Aeschynite o Atokite o Calaverite o Columbite o Erythrite o Hemimorphite o Agardite-Y o Augite o Calciohilairite (Ferrocolumbite) o Euchroite o Hercynite o Agate (Quartz) o Aurostibite o Calcite, see also o Conichalcite o Euxenite o Hessite o Aguilarite o Austinite Manganocalcite o Connellite o Euxenite-Y o Heulandite o Aktashite o Onyx o Copiapite o o Autunite o Fairchildite Hexahydrite o Alabandite o Caledonite o Copper o o Awaruite o Famatinite Hibschite o Albite o Cancrinite o Copper-zinc o o Axinite group o Fayalite Hillebrandite o Algodonite o Carnelian (Quartz) o Coquandite o o Azurite o Feldspar group Hisingerite o Allanite o Cassiterite o Cordierite o o Barite o Ferberite Hongshiite o Allanite-Ce o Catapleiite o Corrensite o o Bastnäsite -
RFC: IRIS Barium and Compounds Substance File
October 29, 2002 Information Quality Guidelines Staff Mail Code 28221T U.S. EPA 1200 Pennsylvania Ave., N.W. Washington, DC, 20460 Subject: Request for Correction of the IRIS Barium and Compounds substance file - Information disseminated by EPA that does not comply with EPA or OMB Information Quality Guidelines Dear Madam or Sir; Chemical Products Corporation (CPC), a Georgia corporation which produces Barium and Strontium chemicals at its Cartersville, Georgia facility, hereby submits this Request for Correction (RFC) concerning EPA’s Integrated Risk Information System Barium and Compounds Substance File (IRIS Ba File). The influential information contained in this file fails to comply with the OMB “Guidelines for Ensuring and Maximizing the Quality, Objectivity, Utility, and Integrity of Information Disseminated by Federal Agencies”. The information disseminated in EPA’s IRIS Barium and Compounds file directly contradicts the information published by EPA in the January 3, 1997 Federal Register and, therefore, cannot represent an EPA consensus position. The IRIS Ba File was revised in 1998 and 1999, yet it contains no mention of the toxicological evaluation conducted by EPA’s Office of Pollution, Pesticides, and Toxic Substances reported in 62 FR 366-372 (No. 2, January 3, 1997). There is no explanation of how a radically different interpretation of the same data could be justified. The NOAEL employed to calculate the Oral Reference Dose in the IRIS Ba File is 0.21 mg/kg/day; there is no LOAEL associated with this NOAEL. The NOAEL reported in 62 FR 366-372 is 70 mg/kg/day in rats and 165 mg/kg/day in mice; these values are taken from a National Toxicology Program technical report and are associated with a LOAEL of 180 mg/kg/day. -
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American Mineralogist, Volume 59, pages 906-918, 1974 Domainsin Minerals Rosnnr E. NpwNnarvr Materials ResearchLaboratory, The PennsylaaniaState Uniuersity, Uniuersity Park, Pennsyluania16802 Abstract Mimetic twinning in minerals is reviewed in terms of the tensor properties of the orientation states, showing which forces are eftective in moving domain walls. Following the Aizu method, various types of ferroic species are developed frorn the free energy function. Examples of ferroelectric, ferromagnetic, ferroelastic, ferrobielectric, ferrobimagnetic, ferrobielastic, ferro- elastoelectric, ferromagnetoelastic, and ferromagnetoelectric minerals are described. Introduction and ferromagnetoelectric.As explained later, each Twinning is widely used in mineral identification type of domain reorientationarises from a particular and in elucidating the formation conditions of rocks. term in the free energy function. The distribution of transformation twins in rock- A ferroic crystal contains two or more possible forming minerals enables one to establish the orientationstates or domains;under a suitably chosen thermal processes that have occurred in the rock. driving force the domain walls move, switching the Mechanical twinning is studied by petrologists in crystal from one orientation stateto another. Switch- the analysis of flow effects. In rock magnetism, it ing may be accomplishedby mechanicalstress (a), is the arrangement of ferromagnetic domains which electricfield (E), magneticfield (I/), or somecombina- determines remanent magnetization. These are but tion of the three. Ferroelectric, ferroelastic, and a few examples of twin phenomena in minerals. ferromagneticmaterials are well known examplesof In the past twinned crystals have been classified primary ferroic crystals in which the orientation according to twin-laws and morphology, or accord- statesdiffer respectivelyin spontaneouspolarization ing to their mode of origin, or on a structural basis, P,",, spontaneousstrain 6r"r and spontaneous but there is another classification scheme which magnetizatiorrMr"t. -
Modern Mineralogy of Gold: Overview and New Data Minéralogie Moderne De L’Or : Bilan Et Nouvelles Données
ArcheoSciences Revue d'archéométrie 33 | 2009 Authentication and analysis of goldwork Modern mineralogy of gold: overview and new data Minéralogie moderne de l’or : bilan et nouvelles données Ernst Spiridonov and Denka Yanakieva Electronic version URL: http://journals.openedition.org/archeosciences/2034 DOI: 10.4000/archeosciences.2034 ISBN: 978-2-7535-1598-7 ISSN: 2104-3728 Publisher Presses universitaires de Rennes Printed version Date of publication: 31 December 2009 Number of pages: 67-73 ISBN: 978-2-7535-1181-1 ISSN: 1960-1360 Electronic reference Ernst Spiridonov and Denka Yanakieva, « Modern mineralogy of gold: overview and new data », ArcheoSciences [Online], 33 | 2009, Online since 09 December 2012, connection on 19 April 2019. URL : http://journals.openedition.org/archeosciences/2034 ; DOI : 10.4000/archeosciences.2034 Article L.111-1 du Code de la propriété intellectuelle. Modern mineralogy of gold: overview and new data Minéralogie moderne de l’or : bilan et nouvelles données Ernst Spiridonov* and Denka Yanakieva** Abstract: We suppose that it should be useful for archaeologists to have an overview on gold mineralogy, because 1) in ancient times, part of the golden objects were made directly from natural golden nuggets; 2) most of the Au in ores exists as its own minerals. he major part of the Au in the planets and meteorites of our Solar system is found in high temperature solid solutions: metallic Fe-Ni and monosulides Fe-Ni and Fe-Cu. Au leaves them under luid or some other reworking. As a result, Au minerals are formed. hey are mainly developed in hydrothermal deposits of the upper part of Earth’s continental crust. -
Gsaüiiveiwibte
'C or GSAÜIIVEIWIBTE CUflIIITIIIi MïtiTHI AJIAlfïïf ,7 -' y/ . •'• .'7. 's -i, . \ STELLINGEN BEHORENDE BIJ HEJ FROEFSCHRIffT VAN R. FURLER 1. De episoomtheorie over het ontstaan van het mitochon- drion is weinig plausibel. R.A, Ratt and H.R. Mahler, Science 221 O972),575 2, Doordat S. Cirendini et al. de dragergassnelheid aan 'aet einde van een chromatografische kolom gebruiken, ontstaat een geflatteerd beeld van de weergegeven re- sultaten. Tevens is het niet mogelijk een dragergas- snelheid te berekenen zonder dat men de interstitiële porositeit kent» S, Cirendini, J. Vermont, J.C. Gressin and CL. Guilleain , J. Chromat. 84 (1973),24 3. De in de mode zijnde bepaling van RNA-moleculair ge- wichten door metingen aan formaldehyde behandelde RNA's berust op dubieuze aannamen. J.M. Kaper and M.E. v/aterworth,Virology 51 (1973),183 T.O. Diener and D.R. Smith, Virology *£ (^973), 359 M.M. El Manna and G. Bruening, Virology 56 (1973),198 4, Op grond van de zeer grote verschillen in stralingska- rakteristiek van de isotopen 1-131 en 1-123 is het streven van isotopenproducenten om een zo 'schoon' mogelijk 1-123 voor diagnostische doeleinden te leve- ren in strijd met de volksgezondheid, doordat de ver- tragingen#die dit oplevert onnodige stralingsbelasting voor patiënten veroorzaakt. H. ïlishiyama et al. J.Nucl.Med. 1£ (1974),261 5« De analogie die Gilbert et al. opmerken tussen de "exchange peak" in de kolom vloaistofchromatografie met behulp van ionenwisselaar en de luchtpi.ek bij gaschromatografie is twijfelachtig. T.W. Gilbert and R.A, Dobbs, Analyt.Chem. 45 (1>73), 1390.