Selenium Metal is
available as disc, granules, ingot, pellets, pieces, powder
, rod, wire, and sputtering target. See research below. Ultra high purity and high purity forms also include metal powder, submicron powder and nanoscale, quantum dots, targets for thin film deposition, pellets for evaporation and single crystal or polycrystalline forms. Elements can also be introduced into alloys or other systems as fluorides, oxides or chlorides or as solutions. Selenium metal is generally immediately available in most volumes. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Selenium is a Block P, Group 16, Period 4 element. The electronic configuration is [Ar] 3d10 4s2 4p4. In its elemental form selenium's CAS number is 7782-49-2. The selenium atom has a radius of 116.pm and it's Van der Waals radius is 190.pm. Selenium exhibits both photovoltaic action, where light is converted directly into electricity, and photoconductive action, where the electrical resistance decreases with increased illumination. These properties make selenium useful in the production of photocells and exposure meters for photographic use, as well as solar cells. Below its melting point, selenium is a p-type semiconductor and has many uses in electronic and solid-state applications. Selenium is available as metal and compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Selenium was first discovered by Jons Berzelius in 1817. |
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Periodic table of the elements science and academic information, elements and advanced materials data, scientific presentations and all pages, designs, concepts, logos, and color schemes herein are the copyrighted proprietary rights and intellectual property of American Elements. American Elements is a U.S. Registered Trademark. © 2001-2009. American Elements. All rights reserved. |
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Recent Research & Development for Selenium
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Factors associated with serum retinol, alpha-tocopherol, carotenoids, and selenium in Hispanics with problems of HIV, chronic hepatitis C, and drug use.
Forrester JE, Wang XD, Knox TA, Borek CG, Tang AM, Johnson EJ.
J Public Health Policy. 2009 Sep;30(3):285-99.
PMID: 19806070 [PubMed - in process]
- Environmental Mercury Exposure and Blood Pressure Among Nunavik Inuit Adults.
Valera B, Dewailly E, Poirier P.
Hypertension. 2009 Oct 5. [Epub ahead of print]
PMID: 19805642 [PubMed - as supplied by publisher]
- Unveiling the Molecular Mechanisms Behind Selenium-Related Diseases Through Knockout Mouse Studies.
Conrad M, Schweizer U.
Antioxid Redox Signal. 2009 Oct 5. [Epub ahead of print]
PMID: 19803749 [PubMed - as supplied by publisher]
- SECIS binding protein 2 promotes cell survival by protecting against oxidative stress.
Papp LV, Lu J, Bolderson E, Boucher D, Singh R, Holmgren A, Khanna KK.
Antioxid Redox Signal. 2009 Oct 5. [Epub ahead of print]
PMID: 19803747 [PubMed - as supplied by publisher]
- Green Chemistry with Selenium Reagents: Development of Efficient Catalytic Reactions.
Freudendahl DM, Santoro S, Shahzad SA, Santi C, Wirth T.
Angew Chem Int Ed Engl. 2009 Oct 2. [Epub ahead of print] No abstract available.
PMID: 19802863 [PubMed - as supplied by publisher]
- Selenium concentrations of common weeds and agricultural crops grown in the seleniferous soils of northwestern India.
Dhillon KS, Dhillon SK.
Sci Total Environ. 2009 Oct 1. [Epub ahead of print]
PMID: 19800657 [PubMed - as supplied by publisher]
- Antioxidant therapy in critically septic patients.
Rinaldi S, Landucci F, De Gaudio AR.
Curr Drug Targets. 2009 Sep;10(9):872-80.
PMID: 19799541 [PubMed - in process]
- [Individual and interactive effects of aluminum, selenium, silicon and phosphorus on rice seedlings growth]
Pang ZW, Shi RH, Xie GS, Liu TM, Ke WF, Cai ML.
Ying Yong Sheng Tai Xue Bao. 2009 Jun;20(6):1375-82. Chinese.
PMID: 19795647 [PubMed - in process]
- Effect Threshold for Selenium Toxicity in Juvenile Splittail, Pogonichthys macrolepidotus A.
Rigby MC, Deng X, Grieb TM, Teh SJ, Hung SS.
Bull Environ Contam Toxicol. 2009 Oct 1. [Epub ahead of print]
PMID: 19795090 [PubMed - as supplied by publisher]
- Food intake of selenium and sulphur amino acids in tuberculosis patients and healthy adults in Malawi.
Eick F, Maleta K, Govasmark E, Duttaroy AK, Bjune AG.
Int J Tuberc Lung Dis. 2009 Oct;13(10):1313-5.
PMID: 19793440 [PubMed - in process]
- Hematoprotective effect of seleno-L-methionine on cyclophosphamide toxicity in rats.
Ayhanci A, Yaman S, Appak S, Gunes S.
Drug Chem Toxicol. 2009;32(4):424-8.
PMID: 19793036 [PubMed - in process]
- Effects of Vitamins C and E Combination on Element Levels in Blood of Smoker and Nonsmoker Radiology X-Ray Technicians.
Kayan M, Naziroglu M, Barak C.
Biol Trace Elem Res. 2009 Sep 30. [Epub ahead of print]
PMID: 19789845 [PubMed - as supplied by publisher]
- Autophagy inhibition through PI3K/Akt increases apoptosis by sodium selenite in NB4 cells.
Ren Y, Huang F, Liu Y, Yang Y, Jiang Q, Xu C.
BMB Rep. 2009 Sep 30;42(9):599-604.
PMID: 19788862 [PubMed - in process]
- The prevalence of dietary-related complementary and alternative therapies and their perceived usefulness among cancer patients.
van Tonder E, Herselman MG, Visser J.
J Hum Nutr Diet. 2009 Sep 25. [Epub ahead of print]
PMID: 19788709 [PubMed - as supplied by publisher]
- Speciation of selenium dietary supplements; formation of S-(methylseleno)cysteine and other selenium compounds.
Amoako PO, Uden PC, Tyson JF.
Anal Chim Acta. 2009 Oct 12;652(1-2):315-23. Epub 2009 Aug 19.
PMID: 19786198 [PubMed - in process]
- Simultaneous detection of selenium by atomic fluorescence and sulfur by molecular emission by flow-injection hydride generation with on-line reduction for the determination of selenate, sulfate and sulfite.
Tyson JF, Palmer CD.
Anal Chim Acta. 2009 Oct 12;652(1-2):251-8. Epub 2009 Jul 8.
PMID: 19786189 [PubMed - in process]
- Decline in Thyroid (18)Fluorodeoxyglucose Uptake Associated with Selenium Supplementation in a Patient with Autoimmune Thyroiditis.
Giovanella L, Suriano S, Ceriani L.
Thyroid. 2009 Sep 28. [Epub ahead of print] No abstract available.
PMID: 19785520 [PubMed - as supplied by publisher]
- SOD and CAT cDNA cloning, and expression pattern of detoxification genes in the freshwater bivalve Unio tumidus transplanted into the Moselle river.
Bigot A, Vasseur P, Rodius F.
Ecotoxicology. 2009 Sep 26. [Epub ahead of print]
PMID: 19784772 [PubMed - as supplied by publisher]
- Effect of sodium selenite on bone repair in tibiae of irradiated rats.
Rocha AS, Ramos-Perez FM, Bóscolo FN, Manzi FR, Cchicarelo M, Almeida SM.
Braz Dent J. 2009;20(3):186-90.
PMID: 19784461 [PubMed - in process]
- Chemistry of the M (M=Fe, Ca, Ba)-Se-H(2)O systems at 25 degrees C.
Nishimura T, Hata R, Hasegawa F.
Molecules. 2009 Sep 14;14(9):3567-88.
PMID: 19783944 [PubMed - in process]
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