Magnetic Susceptibility of the Elements and Inorganic Compounds
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Magnetism, Magnetic Properties, Magnetochemistry
Magnetism, Magnetic Properties, Magnetochemistry 1 Magnetism All matter is electronic Positive/negative charges - bound by Coulombic forces Result of electric field E between charges, electric dipole Electric and magnetic fields = the electromagnetic interaction (Oersted, Maxwell) Electric field = electric +/ charges, electric dipole Magnetic field ??No source?? No magnetic charges, N-S No magnetic monopole Magnetic field = motion of electric charges (electric current, atomic motions) Magnetic dipole – magnetic moment = i A [A m2] 2 Electromagnetic Fields 3 Magnetism Magnetic field = motion of electric charges • Macro - electric current • Micro - spin + orbital momentum Ampère 1822 Poisson model Magnetic dipole – magnetic (dipole) moment [A m2] i A 4 Ampere model Magnetism Microscopic explanation of source of magnetism = Fundamental quantum magnets Unpaired electrons = spins (Bohr 1913) Atomic building blocks (protons, neutrons and electrons = fermions) possess an intrinsic magnetic moment Relativistic quantum theory (P. Dirac 1928) SPIN (quantum property ~ rotation of charged particles) Spin (½ for all fermions) gives rise to a magnetic moment 5 Atomic Motions of Electric Charges The origins for the magnetic moment of a free atom Motions of Electric Charges: 1) The spins of the electrons S. Unpaired spins give a paramagnetic contribution. Paired spins give a diamagnetic contribution. 2) The orbital angular momentum L of the electrons about the nucleus, degenerate orbitals, paramagnetic contribution. The change in the orbital moment -
(12) United States Patent (10) Patent N0.: US 8,304,580 B2 Nanmyo Et A]
US008304580B2 (12) United States Patent (10) Patent N0.: US 8,304,580 B2 Nanmyo et a]. (45) Date of Patent: Nov. 6, 2012 (54) METHOD FOR PRODUCING TRIS(PER FOREIGN PATENT DOCUMENTS FLUORO-ALKANESULFONYL)METHIDE EP 0813521 B1 * 9/2000 ACID SALT JP 2000-226392 A 8/2000 JP 2000-256348 A 9/2000 (75) Inventors: Tsutomu Nanmyo, Ube (JP); Shintaro JP 2000-256348 A * 9/2000 Sasaki, Ube (JP); Takashi Kume, OTHER PUBLICATIONS KaWagoe (JP) English translation of JP-2000-256348-A; “machine translation” (73) Assignee: Central Glass Company, Limited, from JPO link at: http://WWW4.ipd1.inpit.go.jp/Tokujitu/ Ube-shi (JP) tj sogodbenkipdl accessed Oct. 25, 201 1; relevant part of document.* European Search Report dated Jun. 8, 2011 (four (4) pages). ( * ) Notice: Subject to any disclaimer, the term of this Waller et al., “Tris (tri?uoromethanesulfonyl) methide (“Tri?ide”) patent is extended or adjusted under 35 Anion: Convenient Preparation, X-ray Crystal Structures, and U.S.C. 154(b) by 528 days. Exceptional Catalytic Activity as a Counterion With Ytterbium (III) and Scandium (111)”, Journal of Organic Chemistry, vol. 64, 1999, pp. (21) Appl. N0.: 12/520,17s 2910-2913, XP-002636992. Turowsky et al., “Tris ((tri?uoromethyl) sulfonyl) methane, HC (22) PCT Filed: Dec. 18, 2007 (SO2CF3)3”, Journal of Inorganic Chemistry, vol. 27, 1988, pp. 2135-2137, XP-002636993. (86) PCT No.: PCT/JP2007/074296 International Search Report and PCT/ISN237 W/translation dated Feb. 12, 2008 (Seven (7) pages). § 371 (0X1)’ LutZ Turowsky et al., “Tris((tri?uoromethyl)sulfonyl)methane, (2), (4) Date: Jun. -
Safety Data Sheet 1
Safety Data Sheet 1. Waters Corporation EU: Waters Chromatography Europe B.V. FOR CHEMICAL EMERGENCY 34 Maple Street Mon Plaisir 12, Postbus 215 24 Hours per Day, 7 Days per Week Milford, MA 01757 U.S.A. 4870 AE Etten-Leur N B, The Netherlands Call CHEMTREC 1-800-424-9300 Tel: +1 508 478-2000 Tel: +31 76 508 1800 Outside USA & Canada (collect calls accepted) FAX: +1 508 872-1990 Waters Technologies Ireland Ltd +1 703-741-5970 www.waters.com Drinagh, Wexford, Ireland MSDS email inquiries: Tel: +353 53 91 60400 [email protected] 1. IDENTIFICATION Product: MassPREP™ Calibration Mix - DIOS Low Mass, PN 186002820 MSDS #: 715001038 Product Use: For laboratory use only. Date: Rev B, December 1, 2014 2. HAZARDS IDENTIFICATION: The calibration kit mixtures are not classified as hazardous per GHS and OSHA. Not dangerous according to the criteria set by the European Union (EU); not listed in Table 3.1 Annex VI of regulation 1272/2008/EU, as amended. The mixtures are not hazardous in the form in which they are placed on the market and under the normal and recommended conditions of storage and use. The small quantities supplied in our products are unlikely to cause severe or immediate health effects. However idodide compounds can be irritating to eyes and skin. Use only as directed and in accordance with safe laboratory practices. 3. COMPOSITION/INFORMATION ON INGREDIENTS: EXPOSURE LIMITS CAS EC % by OSHA ACGIH EU CHEMICAL INGREDIENT NAME NUMBER NUMBER Weight IOELV Polyethylene Glycol (PEG) 25322-68-3 203-989-9 100 NA NE NA Sodium Iodide 7681-82-5 231-679-3 99.9 NA 0.01 ppm NA (iodides) Cesium Iodide 7789-17-5 232-145-2 99.9 NA 0.01 ppm NA (iodides) Rubidium Iodide 7790-29-6 232-198-1 99.9 NA 0.01 ppm NA (iodides) Notes: Kit contains dried calibration mixtures: Polyethylene Glycol in a range of molecular weights (MW 200, 600, 1000); 50 ug of Sodium Iodide; 50 ug Rubidium Iodide; and 12.5 ug Cesium Iodide. -
Zinc Fluoride Product Stewardship Summary February 2011
Zinc Fluoride Product Stewardship Summary February 2011 ZnF2 Chemical Name: Zinc Fluoride Chemical Category (if applicable): Metal Halide Synonyms: Zinc difluoride; ZnF2 CAS Number: 7783-49-5 CAS Name: Zinc fluoride EC (EINECS) Number: 232-001-9 Document Number: GPS0041 V1.0 Zinc fluoride (ZnF2) is used in the manufacture of metals, in fluxes, chemical synthesis, and in the manufacture of special glasses.. Exposure can occur at either a ZnF2 manufacturing facility or at other manufacturing, packaging or storage facilities that handle ZnF2. Persons involved in maintenance, sampling and testing activities, or in the loading and unloading of ZnF2 packages are at risk of exposure, but worker exposure can be controlled with the use of proper general mechanical ventilation and personal protective equipment. Workplace exposure limits for fluoride ion have been established for use in worksite safety programs. When ZnF2 is a component of consumer products, users should follow manufacturer’s use and/or label instructions. ZnF2 dusts released to the atmosphere and deposited in soil or surface water in the vicinity of production sites have negligible impact on the environment. Please see the MSDS for additional information. ZnF2 s a nonflammable solid that is stable under normal conditions. Contact of ZnF2 with water or extended skin contact under moist conditions can produce hydrofluoric acid (HF), a very dangerous acid. Breathing ZnF2 dust can irritate the nose, throat, and lungs. Short-term exposure to high concentrations of ZnF2 may cause nausea, vomiting, loss of appetite and weakness. Long-term exposure to ZnF2 may cause deposits of fluorides in bones and teeth, a condition called fluorosis, which may result in pain, disability and discoloration or mottling of teeth. -
WO 2015/084416 Al 11 June 2015 (11.06.2015) P O P C T
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2015/084416 Al 11 June 2015 (11.06.2015) P O P C T (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every C09K 8/05 (2006.01) C07C 51/42 (2006.01) kind of national protection available): AE, AG, AL, AM, COW 17/00 (2006.01) E21B 21/06 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (21) Number: International Application DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/US20 13/076445 HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, (22) International Filing Date: KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, 19 December 2013 (19. 12.2013) MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (25) Filing Language: English SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, (26) Publication Language: English TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: 61/910,976 3 December 2013 (03. 12.2013) US (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (71) Applicant: CABOT CORPORATION [US/US]; Two GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, Seaport Lane, Suite 1300, Boston, MA 01220 (US). -
Evaluation of Antibacterial and Cytocompatible Properties Of
Dental Materials Journal 2020; : – Evaluation of antibacterial and cytocompatible properties of multiple-ion releasing zinc-fluoride glass nanoparticles Erika NISHIDA1, Hirofumi MIYAJI1, Kanako SHITOMI1, Tsutomu SUGAYA1 and Tsukasa AKASAKA2 1 Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, N13 W 7, Kita-ku, Sapporo, Hokkaido 060- 8586, Japan 2 Department of Biomedical Materials and Engineering, Faculty of Dental Medicine, Hokkaido University, N13 W 7, Kita-ku, Sapporo, Hokkaido 060- 8586, Japan Corresponding author, Hirofumi MIYAJI; E-mail: [email protected] Zinc-fluoride glass nanoparticles (Zinc-F) release several ions, such as fluoride, zinc and calcium ions, through acid-base reactions. The aim of this study was to evaluate the antibacterial and cytotoxic properties of Zinc-F. Antibacterial tests showed that a Zinc-F eluting solution significantly reduced the turbidity and colony-forming units ofStreptococcus mutans and Actinomyces naeslundii, compared to that of calcium-fluoroaluminosilicate glass nanoparticles without zinc ions. In live/dead staining, Zinc-F eluate significantly decreased green-stained bacterial cells, indicating live cells, compared with the control (no application). Human dentin coated with Zinc-F showed suppressed S. mutans and A. naeslundii biofilm formation. Additionally, Zinc-F eluate showed low cytotoxic effects in osteoblastic and fibroblastic cells. Therefore, our findings suggested that Zinc-F exhibits antibacterial and biocompatible properties through multiple-ion release. Keywords: Actinomyces naeslundii, Biocompatibility, Dentin, Streptococcus mutans, Zinc-fluoride glass nanoparticles calcium and silicon and a phosphoric acid solution. It is INTRODUCTION assumed that Zinc-F aggregates on the dentin surface to Root caries has become a major problem in elderly close dentinal tubules and release zinc, fluoride, calcium people with exposed tooth roots caused by aging or and silicon ions through acid-base reactions, such as periodontal disease. -
Magnetism Some Basics: a Magnet Is Associated with Magnetic Lines of Force, and a North Pole and a South Pole
Materials 100A, Class 15, Magnetic Properties I Ram Seshadri MRL 2031, x6129 [email protected]; http://www.mrl.ucsb.edu/∼seshadri/teach.html Magnetism Some basics: A magnet is associated with magnetic lines of force, and a north pole and a south pole. The lines of force come out of the north pole (the source) and are pulled in to the south pole (the sink). A current in a ring or coil also produces magnetic lines of force. N S The magnetic dipole (a north-south pair) is usually represented by an arrow. Magnetic fields act on these dipoles and tend to align them. The magnetic field strength H generated by N closely spaced turns in a coil of wire carrying a current I, for a coil length of l is given by: NI H = l The units of H are amp`eres per meter (Am−1) in SI units or oersted (Oe) in CGS. 1 Am−1 = 4π × 10−3 Oe. If a coil (or solenoid) encloses a vacuum, then the magnetic flux density B generated by a field strength H from the solenoid is given by B = µ0H −7 where µ0 is the vacuum permeability. In SI units, µ0 = 4π × 10 H/m. If the solenoid encloses a medium of permeability µ (instead of the vacuum), then the magnetic flux density is given by: B = µH and µ = µrµ0 µr is the relative permeability. Materials respond to a magnetic field by developing a magnetization M which is the number of magnetic dipoles per unit volume. The magnetization is obtained from: B = µ0H + µ0M The second term, µ0M is reflective of how certain materials can actually concentrate or repel the magnetic field lines. -
Crown Chemical Resistance Chart
Crown Polymers, Corp. 11111 Kiley Drive Huntley, IL. 60142 USA www.crownpolymers.com 847-659-0300 phone 847-659-0310 facisimile 888-732-1270 toll free Chemical Resistance Chart Crown Polymers Floor and Secondary Containment Systems Products: CrownShield covers the following five (4) formulas: CrownShield 50, Product No. 320 CrownCote, Product No. 401 CrownShield 40-2, Product No. 323 CrownShield 28, Product No. 322 CrownPro AcidShield, Product No. 350 CrownCote AcidShield, Product No. 430 CrownPro SolventShield, Product No. 351 CrownCote SolventShield, Product No. 440 This chart shows chemical resistance of Crown Polymers foundational floor and secondary containment product line that would be exposed to chemical spill or immersion conditions. The chart was designed to provide general product information. For specific applications, contact your local Crown Polymers Floor and Secondary Containment Representative or call direct to the factory. ; Resistant to chemical immersion up to 7 days followed by wash down with water 6 Spillage environments that will be cleaned up within 72 hours after initial exposure. 9 Not Recommended Chemical CrownShield SolventShield AcidShield Chemical CrownShield SolventShield AcidShield 1, 4-Dichloro-2-butene 9 6 6 Aluminum Bromate ; ; ; 1, 4-Dioxane 9 6 6 Aluminum Bromide ; ; ; 1-1-1 Trichloroethane 9 ; ; Aluminum Chloride ; ; ; 2, 4-Pentanedione 6 ; 6 Aluminum Fluoride (25%) ; ; ; 3, 4-Dichloro-1-butene 6 6 6 Aluminum Hydroxide ; ; ; 4-Picoline (0-50%) 9 6 6 Aluminum Iodine ; ; ; Acetic Acid (0-15%) 9 6 6 -
Download Author Version (PDF)
Journal of Materials Chemistry A Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts are published online shortly after acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soon as it is available. You can find more information about Accepted Manuscripts in the Information for Authors. Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal’s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains. www.rsc.org/materialsA Page 1 of 9 Journal of Materials Chemistry A ARTICLE JMCA Safer Salts for CdTe Nanocrystal Solution Processed Solar Cells: The Dual Roles of Ligand Exchange and Grain Growth Received 00th January 20xx, a b c d e Accepted 00th January 20xx Troy K. Townsend, † William B. Heuer, Edward E. Foos, Eric Kowalski, Woojun Yoon and Joseph G. Tischler e DOI: 10.1039/x0xx00000x Inorganic CdSe/CdTe nanocrystals for solid-state photovoltaic devices are typically sintered into a bulk-like material after www.rsc.org/ annealing in the presence of solid cadmium chloride. -
The Structure and Stability of Simple Tri-Iodides
THE STRUCTURE AND STABILITY OF SIMPLE TRI -IODIDES by ANTHONY JOHN THOMPSON FINNEY B.Sc.(Hons.) submitted in fulfilment of the requirements for the Degree of Doctor of Philosophy UNIVERSITY OF TASMANIA HOBART OCTOBER, 1973 . r " • f (i) Frontispiece (reproduced as Plate 6 - 1, Chapter 1) - two views of a large single crystal of KI 3 .H20. The dimensions of this specimen were approximately 3.0 cm x 1.5 cm x 0.5 cm. • - - . ;or • - This thesis contains no material which has been accepted for the award of any other degree or diploma in any University, and to the best of my knowledge and belief, this thesis contains no copy or paraphrase of material previously published or written by another person, except where reference is made in the text of this thesis. Anthony John Finney Contents page Abstract (iv) Acknowledgements (vii) Chapter 1 - The Structure and Stability of Simple 1 Tri-iodides Chapter 2 - The Theoretical Basis of X-Ray Structural 32 Analysis Chapter 3 - The Crystallographic Program Suite 50 Chapter 4 - The Refinement of the Structure of NH I 94 4 3 Chapter 5 - The Solution of the Structure of RbI 115 3 Chapter 6 - The Solution of the Structure of KI 3 .1120 135 Chapter 7 Discussion of the Inter-relation of 201 Structure and Stability Bibliography 255 Appendix A - Programming Details 267 Appendix B - Density Determinations 286 Appendix C - Derivation of the Unit Cell Constants of 292 KI .H 0 3 2 Appendix D - I -3 force constant Calculation 299 Appendix E - Publications 311 ( iv) THE STRUCTURE AND STABILITY OF SIMPLE TRI-IODIDES Abstract In this work the simple tri-iodides are regarded as being those in which the crystal lattice contains only cations, tri-iodide anions and possibly solvate molecules. -
WO 2016/074683 Al 19 May 2016 (19.05.2016) W P O P C T
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2016/074683 Al 19 May 2016 (19.05.2016) W P O P C T (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every C12N 15/10 (2006.01) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, (21) International Application Number: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, PCT/DK20 15/050343 DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (22) International Filing Date: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 11 November 2015 ( 11. 1 1.2015) KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, (25) Filing Language: English PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, (26) Publication Language: English SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: PA 2014 00655 11 November 2014 ( 11. 1 1.2014) DK (84) Designated States (unless otherwise indicated, for every 62/077,933 11 November 2014 ( 11. 11.2014) US kind of regional protection available): ARIPO (BW, GH, 62/202,3 18 7 August 2015 (07.08.2015) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (71) Applicant: LUNDORF PEDERSEN MATERIALS APS TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, [DK/DK]; Nordvej 16 B, Himmelev, DK-4000 Roskilde DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, (DK). -
Safety Data Sheet
SAFETY DATA SHEET Creation Date 27-Aug-2013 Revision Date 14-Feb-2020 Revision Number 2 1. Identification Product Name Cadmium bromide, ultra dry Cat No. : 47105 CAS-No 7789-72-6 Synonyms No information available Recommended Use Laboratory chemicals. Uses advised against Food, drug, pesticide or biocidal product use. Details of the supplier of the safety data sheet Company Alfa Aesar Thermo Fisher Scientific Chemicals, Inc. 30 Bond Street Ward Hill, MA 01835-8099 Tel: 800-343-0660 Fax: 800-322-4757 Email: [email protected] www.alfa.com Emergency Telephone Number During normal business hours (Monday-Friday, 8am-7pm EST), call (800) 343-0660. After normal business hours, call Carechem 24 at (866) 928-0789. 2. Hazard(s) identification Classification This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Acute oral toxicity Category 4 Acute dermal toxicity Category 4 Acute Inhalation Toxicity - Dusts and Mists Category 4 Carcinogenicity Category 1A Label Elements Signal Word Danger Hazard Statements May cause cancer Harmful if swallowed, in contact with skin or if inhaled ______________________________________________________________________________________________ Page 1 / 7 Cadmium bromide, ultra dry Revision Date 14-Feb-2020 ______________________________________________________________________________________________ Precautionary Statements Prevention Obtain special instructions before use Do not handle until all safety precautions have been read and understood Use personal protective equipment