Chemistry Dictionary | Birth of the Elements | Tools | Periodic Table | Citing Chemicool | About | Privacy | Contact. Keep container tightly sealed. The neodymium-YAG laser emits infrared light at 1.064 micrometers. Lasers are also characterized by the duration of laser emission - continuous wave or pulsed laser. Substance is not listed. Powder: irritant effect Classification of the substance or mixture in accordance with 29 CFR 1910 (OSHA HCS) Forklifts and Powered Industrial Trucks (PIT). COPYRIGHT 1997-2016 AMERICAN ELEMENTS. No further relevant information available. Domestic, North America +1 800-424-9300 WebHolmium is used in yttrium-iron-garnet (YIG) and yttrium-lanthanum-fluoride (YLF) solid state lasers found in microwave equipment (which are in turn found in a variety of medical and This label provides important information on the hazard of the laser. REACTIVITY It oxidises rapidly in moist air and at elevated temperatures. A brief introduction to the rare earths lanthanides. Commercially, it is extracted mainly from monazite or gadolinite ores with sodium hydroxide, hydrochloric acid or sulfuric acid through ion exchange chromatography or solvent extraction techniques. CD Rom players are an example of a Class 1 laser product. Requirements to be met by storerooms and receptacles: It is used as yellow/red coloring for glass or cubic zirconia. Not applicable No further data; see section 7. Body protection: Do not allow undiluted product or large quantities to reach ground water, water course or sewage system. Signal word Los Angeles, CA 90024 Substance is not listed. After inhalation Identification number(s): It is paramagnetic at ambient temperature and ferromagnetic below 19 K. Holmium chemical symbol is Ho with atomic number 67. Its atomic weight is 164.93. Holmium melting point is 1461 O C and boiling point is 2600 O C. Its density at room temperature is about 8.79 g/cm 3. In its Auto igniting: Not determined. No further relevant information available. Not applicable The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. Holmium (Ho) - Discovery, Occurrence, Production, Properties and Applications. All three men are given credit for discovering this new element, which was named holmium after Cleves native Stockholm. Germ cell mutagenicity: Same criteria for classification as Class 2 but where beam may be hazardous for viewing with magnification. Recommendation: It is estimated that only around 0.7 to 1.2 ppm of holmium is present in the Earths crust. Transport hazard class(es) This interview discusses how ELTRA, as part of Verder Scientific, produces elemental analyzers for the battery component space. Special powder for metal fires. Advice for firefighters Hazard pictograms Personal precautions, protective equipment and emergency procedures Not applicable Avoid transfer into the environment. Form: Solid in various forms 0 For online linking, please copy and paste one of the following: To cite this page in an academic document, please use the following MLA compliant citation: I like this website its really good and esy to read and record information for class work just need the costs of the products!!! No information known. Label elements Prop 65 - Chemicals known to cause cancer Ignition temperature: Not determined E. Clementi, D.L.Raimondi, and W.P. 1907/2006. These electronic devices are generally very small and use low power. Specific target organ system toxicity - single exposure: Not applicable Retrieved on November 14, 2022 from https://www.azom.com/article.aspx?ArticleID=7916. Information about protection against explosions and fires: Seek immediate medical advice. Information about limitation of use: General Information Annex XIV of the REACH Regulations (requiring Authorisation for use) Not required. (adsbygoogle = window.adsbygoogle || []).push({}); In 1878 Swiss chemists Marc Delafontaine and Jacques-Louis Soret observed previously unrecorded spectroscopic lines. WebAppearance: silvery white. Conditions to avoid Holmium has the highest magnetic moment (10.6B) of any naturally occurring element. It does not react in dry air at normal temperatures, but rapidly oxidizes to a yellow oxide (Ho2O3) in moist air or when heated. It says up above that the price is Cost, pure: $860 per 100g. Holmium garnets are used in solid-state lasers that emit at wavelengths that make them safe for use in medical and dental applications, and they are also used in fiber optic communications devices. WebWhat is Holmium. Oregon State University Same criteria for classification as Class 1 but where beam may be hazardous for viewing with magnification, CW and repetitive-pulse lasers in the visible region of the spectrum (0.4 to 0.7 m) which can emit accessible radiant energy exceeding the Class 1 AEL for the maximum duration inherent in the laser, but not exceeding the Class 1 AEL for any pulse duration < 0.25 s. The output of the laser is not intended to be viewed. Results of PBT and vPvB assessment Safety Data Sheet according to Regulation (EC) No. Color: Not determined Skin irritation or corrosion: Boiling point/Boiling range: 2295 C (4163 F) Keep container tightly sealed. Reactivity WebElements: THE periodic table on the WWW [www.webelements.com] If this product is involved in a fire, the following can be released: Hazard statements Safety data for Holmium and its compounds can vary widely depending on the form. Not dangerous according to Holmium has no biological role but is said to stimulate the metabolism. Not required. These definitions are wordy and cumbersome to read out of context, but when given the specifications of a laser or laser system are not difficult to apply. Robert E. Krebs, The history and use of our earths chemical elements: a reference guide., JGreenwood Publishing Group, 2006, p296, p300. A classification label will be found on the laser housing. American Elements This sample is from The Elements Collection, an attractive and safely packaged collection of the 92 naturally occurring elements that is available for sale. Isotopes: Holmium has 30 isotopes whose half-lives are known, with mass numbers 141 to 172. The most comon lanthanoids in these minerals are, in order, cerium, lanthanum, neodymium, and praseodymium. In its elemental form, CAS 7440-60-0, holmium has a silvery white appearance. Marine Pollutant (DOT): Additionally, the radioactive isotope holmium-166m1 is used to calibrate gamma ray spectrometers. No special requirements. The ionisation energies of holmium are given below. If required, provide artificial respiration. Do you have a review, update or anything you would like to add to this article? Not required. Group in periodic table: Group name: Lanthanoid. Like a lot of other lanthanides, holmium is too reactive to be found in native form, as pure holmium slowly forms a yellowish oxide coating when exposed to air. The lanthanoids are found in nature in a number of minerals. No further relevant information available. Not applicable. PBT: Suitable extinguishing agents Health (acute effects) = 0 Storage Thomas, G.P.. "Holmium (Ho) - Discovery, Occurrence, Production, Properties and Applications". (1a), (3), The pure metal was isolated in 1911 by Otto Holmberg. . CO2 lasers emit energy in the far-infrared, 10.6 micrometers, and are used for cutting hard materials. The element is categorized under the lanthanides. Additional information: Chemical safety assessment: It is designed to keep the samples warm throughout the entire process. Holmium has unusual magnetic properties, including the highest magnetic moment (10.6 B) of any naturally occurring element. Not applicable. (4). The data are adapted from references 1-3. Oxygen is the chemical element with the symbol O and atomic number 8, meaning its nucleus has 8 Special hazards arising from the substance or mixture Prior to 2007, this classification was known as 3a. Not applicable to the Globally Harmonized System (GHS). Not applicable Vapor pressure at 20 C (68 F): 0 hPa Additional toxicological information: Holmium fluoride is another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Not applicable. Not determined No effects known. Incompatible materials: Compilation of the top interviews, articles, and news in the last year. Substance is not listed. Recommendation Holmium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity). They are tunable over a broad range of wavelengths. These electronic devices are generally very small and use low power. Immediately wash with water and soap and rinse thoroughly. and liver damage. They may be built into larger arrays, e.g., the writing source in some laser printers or compact disk players. HMIS ratings (scale 0-4) 1907/2006 (REACH). lasers, sometimes called diode lasers, are not solid-state lasers. A. Bearden and A. F. Burr, "Reevaluation of X-Ray Atomic Energy Levels,", J. C. Fuggle and N. Mrtensson, "Core-Level Binding Energies in Metals,". Semiconductor lasers, sometimes called diode lasers, are not solid-state lasers. Carcinogenicity: Further information about storage conditions: As a result of its special magnetic properties, holmium is used in alloys for the production of magnets and as a flux concentrator for high magnetic fields. 7440-60-0 Holmium All rights reserved. dynamic: Not applicable. Exposure controls See Section 13 for disposal information. Thomas, G.P.. 2019. National regulations Holmium is considered to be of low toxicity. Hazard statements Most important symptoms and effects, both acute and delayed 1093 Broxton Ave. Suite 2000 The first two are orthophosphate minerals LnPO4 (Ln deonotes a mixture of all the lanthanoids except promethium which is vanishingly rare) and the third is a fluoride carbonate LnCO3F. Aspiration hazard: WebHolmium is a chemical element with the symbol Ho and atomic number 67. Hazards not otherwise classified All rights reserved. Please use one of the following formats to cite this article in your essay, paper or report: Thomas, G.P.. (2019, May 13). General protective and hygienic measures See Section 8 for information on personal protection equipment. Melting point/Melting range: 1474 C (2685 F) Holmium is used as a magnet component instead of for fabricating complete magnets because it is extremely rare. Breathing equipment: Discover the FieldLab analyzer, a new, battery-powered, portable oil lab by Spectro Scientific that allows for rapid oil testing in the field. Holmium isotopes are good neutron absorbers and are used in nuclear reactor control rods. Mary Eagleson, Concise encyclopedia chemistry., Walter de Gruyter, 1994, page 498. Penetration time of glove material (in minutes) After swallowing For safety reasons unsuitable extinguishing agents Safety, health and environmental regulations/legislation specific for the substance or mixture The chemical element holmium is classed as a lanthanide and rare earth metal. Appearance: Danger of explosion: Product does not present an explosion hazard. Evaporation rate Substance is not listed. Not controlled Information for doctor Initially, the metals are extracted as salts from the ores by extraction with sulphuric acid (H2SO4), hydrochloric acid (HCl), and sodium hydroxide (NaOH). Prop 65 - Developmental toxicity Copyright 1993-2022 Mark Winter [ The University of Sheffield and WebElements Ltd, UK]. WebElements: THE periodic table on the WWW [www.webelements.com] It can be obtained by reducing the anhydrous fluoride using calcium metal. Corrosion deterioration of metallic alloysexposed to the atmosphere or other adverse conditions is prevented using a variety of techniques. Reference to other sections See reverse side of invoice or packing slip for additional terms and conditions of sale. Information about storage in one common storage facility: Precautions for safe handling Not applicable. This magnetic property is also exploited in holmium-yttrium iron garnet, a synthetic ferrimagnetic material used in microwave and magnetooptical applications. Protective work clothing. Most holmium compounds are brownish yellow in color. Bioaccumulative potential WebHolmium; Symbol: Ho: Atomic number: 67: Atomic weight: 164.9 amu: Standard state: Solid at 298 K: CAS Registry ID: 7440-60-0: Group name: Lanthanoid: Period in periodic table: 6: Additionally, holmium is present in ion adsorption clays, which are a major source of HREEs due to their relative ease of processing, despite the low percentage quantities of rare earths they contain. Eye irritation or corrosion: Monazite also contains thorium and ytrrium which makes handling difficult since thorium and its decomposition products are radioactive. Water The electron affinity of holmium is 50kJmol1. Rinse opened eye for several minutes under running water. Density at 20 C (68 F): 8.795 g/cm (73.394 lbs/gal) Holmiums other primary use is as a dopant in garnets, cubic zirconia, and glass. Aquatic toxicity: His new research details the production of a prototype circuit board printed on a sheet of paper. Viscosity: The number of electrons in each of Holmium's shells is 2, 8, 18, 29, 8, 2 and its electronic configuration is [Xe] 4f11 6s2. 0 Andrew Ede, The chemical element: a historical perspective., Greenwood Publishing Group, 2006, p139. Keep patient warm. Toxicity Subacute to chronic toxicity: Seek immediate medical advice. Holmium is a chemical element with the symbol Ho and atomic number 67. Not capable of producing damage to the eye (unless disassembled). WebFor visible-beam consumer lasers, there are four main classes. 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Boiling point is 2600 O C. its density at room temperature is about 8.79 g/cm.! - Chemicals known to cause cancer Ignition temperature: not determined Skin irritation holmium classification corrosion: Monazite also thorium... With purities from 99 % to 99.999 % ( ACS grade to ultra-high purity ) pure $. 10.6B ) of any naturally occurring element is considered to be met by storerooms and receptacles: It is to. In these minerals are, in order, cerium, lanthanum, neodymium, and W.P wash with water soap! Cleves native Stockholm only around 0.7 to 1.2 ppm of holmium is available as metal and compounds with from! % to 99.999 % ( ACS grade to ultra-high purity ) update or anything would. To add to this article Properties and Applications pictograms Personal precautions, protective equipment and emergency procedures not Avoid... Occurring element, a synthetic ferrimagnetic material used in microwave and magnetooptical Applications are generally small...

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