Iron Selenide (FeSe) is a crystal grown product generally immediately available in most volumes. Technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Iron is a Block D, Group 8, Period 4 element. The number of electrons in each of Iron's shells is 2, 8, 14, 2 and its electronic configuration is [Ar] 3d6 4s2. In its elemental form iron's CAS number is 7439-89-6. The iron atom has a radius of 124.1.pm and it's Van der Waals radius is 200.pm. Iron is not toxic. Iron is the most commonly used metal for commercial applications due to its hardness, historical availability and low cost. Once used on its own, it is now alloyed with nickel and other elements to produce steel and other high strength, non-corrosive structural metals. Iron as a metal and as its many compounds has numerous uses. It is a primary colorant in glass and ceramics. It is a catalyst. It is the basis for low grade magnets and because of its magnetic properties is used extensively in memory tape. Recent applications for Iron nanoparticles include in water treatment of carbon tetrachloride in contaminated groundwater, magnetic data storage and resonance imaging (MRI) and in certain alloy and catalyst applications. Iron can also be introduced into processes using iron foil, pellets, rod and wire by thin film Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Organometallic and Chemical Vapor Deposition (MOCVD) for specific applications such as fuel cells and solar energy. Iron is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Iron was first discovered by Early Man.See Iron research below.
Selenium is a Block P, Group 16, Period 4 element. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its 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. The EPA does not classify selenium as carcinogenic, although selenium sulfide is a probable carcinogen. Selenates and selenites which are compounds of selenium, are highly toxic. Hydrogen selenide gas (SeH2) is the most acutely toxic compound of selenium. Selenium exhibits both photovoltaic action, where light is converted directly into electricity, and photoconductive action, where the electrical resistance decreases with increased illumination. 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. The origin of the name Selenium comes from the Greek word "Selęnę" meaning moon. See selenium research below.
American Elements semi conducting materials are crystal structures produced from ultra high purity starting materials synthesized by our high purity production facility which includes several large electric muffle furnaces, a tube furnace for hydrogen reduction, 50 gallon glass-lined Pfaudler reactors supported by our analytical laboratory containing X-ray diffraction, SEM, AA, BET surface area, and ICP Spectrometry for trace metals analysis. See a discussion of American Elements Ultra High Purity and Analytical capabilities. See Crystal Growth for processes used to fabricate semiconductor materials, which include:
Crystal "pulling" by the Czochaiski method for production of semiconductor materials
Flux growth and gradient freeze
Directional solidification of fluorites using both the Bridgman-Stockbarger and float zoning techniques
Cytochrome b mutation Y268S conferring the atovaquone resistance phenotype in the malaria parasite results in reduced parasite bc1 catalytic turnover and protein expression.
Fisher N, Abd Majid R, Antoine T, Al-Helal M, Warman AJ, Johnson DJ, Lawrenson AS, Ranson H, O'Neill PM, Ward SA, Biagini GA.
J Biol Chem. 2012 Jan 26. [Epub ahead of print]
PMID:
22282497
[PubMed - as supplied by publisher]
Serum ferritin levels and endocrinopathy in medically treated patients with ß thalassemia major.
Belhoul KM, Bakir ML, Saned MS, Kadhim AM, Musallam KM, Taher AT.
Ann Hematol. 2012 Jan 28. [Epub ahead of print]
PMID:
22281991
[PubMed - as supplied by publisher]
Iron supplementation to treat anemia in patients with chronic kidney disease.
Besarab A, Coyne DW.
Nat Rev Nephrol. 2012 Jan 27;8(2):63. doi: 10.1038/nrneph.2011.217. No abstract available.
PMID:
22281971
[PubMed - in process]
Anemia in Critical Illness: Insights into Etiology, Consequences and Management.
Hayden SJ, Albert TJ, Watkins TR, Swenson ER.
Am J Respir Crit Care Med. 2012 Jan 26. [Epub ahead of print]
PMID:
22281832
[PubMed - as supplied by publisher]
IRON fMRI measurements of CBV and implications for BOLD signal.
Mandeville JB.
Neuroimage. 2012 Jan 16. [Epub ahead of print]
PMID:
22281669
[PubMed - as supplied by publisher]
Fatal idiopathic pulmonary haemosiderosis in association with pregnancy - Medico-legal evaluation.
Töro K, Herjavecz I, Vereckei E, Kovács M.
J Forensic Leg Med. 2012 Feb;19(2):101-104. Epub 2011 Oct 24.
PMID:
22281220
[PubMed - as supplied by publisher]
Reduction of Fe(III)EDTA(-) in a NO(x) scrubbing solution by magnetic Fe(3)O(4)-chitosan microspheres immobilized mixed culture of iron-reducing bacteria.
Jing G, Zhou J, Zhou Z, Lin T.
Bioresour Technol. 2011 Dec 27. [Epub ahead of print]
PMID:
22281145
[PubMed - as supplied by publisher]
Reactive oxygen species are involved in ferroportin degradation induced by ceruloplasmin mutant Arg701Trp.
Persichini T, Francesco GD, Capone C, Cutone A, Bonaccorsi di Patti MC, Colasanti M, Musci G.
Neurochem Int. 2012 Jan 20. [Epub ahead of print]
PMID:
22281056
[PubMed - as supplied by publisher]
Effects of hypoxic preconditioning on the expression of iron influx and efflux proteins in primary neuron culture.
Du F, Fan M, Gong Q, Zhu LL, Zhu ZJ, Lu L, Ke Y.
Neurochem Int. 2012 Jan 18. [Epub ahead of print]
PMID:
22281055
[PubMed - as supplied by publisher]
Iron deposition of the deep grey matter in patients with multiple sclerosis and neuromyelitis optica: A control quantitative study by 3D-enhanced susceptibility-weighted angiography (ESWAN).
Chen X, Zeng C, Luo T, Ouyang Y, Lv F, Rumzan R, Wang Z, Li Q, Wang J, Hou H, Huang F, Li Y.
Eur J Radiol. 2012 Jan 24. [Epub ahead of print]
PMID:
22280874
[PubMed - as supplied by publisher]
Iron golf club with improved mass properties and vibration damping.
Roach RL.
J Acoust Soc Am. 2012 Jan;131(1):643. No abstract available.
PMID:
22280652
[PubMed - in process]
Stability analysis of ultrasound thick-shell contrast agents.
Lu X, Chahine GL, Hsiao CT.
J Acoust Soc Am. 2012 Jan;131(1):24.
PMID:
22280568
[PubMed - in process]
Role of Ureaplasma urealyticum in altering the endothelial metal concentration during preeclampsia.
Padmini E, Uthra V.
Placenta. 2012 Jan 24. [Epub ahead of print]
PMID:
22280558
[PubMed - as supplied by publisher]
A polar corundum oxide displaying weak ferromagnetism at room temperature.
Li MR, Adem U, McMitchell SR, Xu Z, Thomas CI, Warren JE, Giap DV, Niu HJ, Wan X, Palgrave RG, Schiffmann F, Cora F, Slater B, Burnett TL, Cain MG, Abakumov AM, Van Tendeloo G, Thomas MF, Rosseinsky MJ, Claridge JB.
J Am Chem Soc. 2012 Jan 23. [Epub ahead of print]
PMID:
22280499
[PubMed - as supplied by publisher]
Targeting Vascular Changes in Lesions in Multiple Sclerosis and Experimental Autoimmune Encephalomyelitis.
Karlik SJ, Roscoe WA, Patinote C, Contino-Pépin C.
Cent Nerv Syst Agents Med Chem. 2012 Jan 25. [Epub ahead of print]
PMID:
22280405
[PubMed - as supplied by publisher]
[Transformation of copper and chromium in co-contaminated soil and its influence on bioavailability for pakchoi (Brassica chinensis)].
Wang D, Wei W, Liang DL, Wang SS, Hu B.
Huan Jing Ke Xue. 2011 Oct;32(10):3113-20. Chinese.
PMID:
22279932
[PubMed - in process]
[Distribution characteristic and assessment of soil heavy metal pollution in the iron mining of Baotou in Inner Mongolia].
Guo W, Zhao RX, Zhang J, Bao YY, Wang H, Yang M, Sun XL, Jin F.
Huan Jing Ke Xue. 2011 Oct;32(10):3099-105. Chinese.
PMID:
22279930
[PubMed - in process]
[Study of inactivating sulfate reducing bacteria with zero-valent iron nanoparticles].
Shu ZY, Wang J, Huang Y.
Huan Jing Ke Xue. 2011 Oct;32(10):3040-4. Chinese.
PMID:
22279921
[PubMed - in process]
[Combination of intersticial cystitis and adenomyosis in females suffering from chronic pelvic pain syndrome].
[No authors listed]
Urologiia. 2011 Sep-Oct;(5):10, 12-4. Russian.
PMID:
22279779
[PubMed - in process]
[Antidiabetes drug metformin is a donor of nitric oxide: ESR measurement of efficiency].
[No authors listed]
Biofizika. 2011 Nov-Dec;56(6):1125-33. Russian.
PMID:
22279758
[PubMed - in process]
Toenail selenium status and the risk of Barrett's esophagus: the Netherlands Cohort Study.
Steevens J, Schouten LJ, Driessen AL, Huysentruyt CJ, Keulemans YC, Goldbohm RA, van den Brandt PA.
Cancer Causes Control. 2010 Oct 10. [Epub ahead of print]PMID: 20936529 [PubMed - as supplied by publisher]Related citations
Promotion of Growth in Mungbean (Phaseolus aureus Roxb.) by Selenium is Associated with Stimulation of Carbohydrate Metabolism.
Malik JA, Kumar S, Thakur P, Sharma S, Kaur N, Kaur R, Pathania D, Bhandhari K, Kaushal N, Singh K, Srivastava A, Nayyar H.
Biol Trace Elem Res. 2010 Oct 9. [Epub ahead of print]PMID: 20936436 [PubMed - as supplied by publisher]Related citations
Transition metal chemistry of cyclodiphosphanes containing phosphine and amide-phosphine functionalities: Formation of a stable dipalladium(II) complex containing a Pd-P s-bond.
Balakrishna MS, Venkateswaran R, Mague JT.
Dalton Trans. 2010 Oct 8. [Epub ahead of print]PMID: 20936211 [PubMed - as supplied by publisher]Related citations
Associations between blood metals and fecundity among women residing in New York State.
Bloom MS, Louis GM, Sundaram R, Kostyniak PJ, Jain J.
Reprod Toxicol. 2010 Oct 6. [Epub ahead of print]PMID: 20933593 [PubMed - as supplied by publisher]Related citations
The protective role of selenium in recalcitrant Acer saccharium L. seeds subjected to desiccation.
Pukacka S, Ratajczak E, Kalemba E.
J Plant Physiol. 2010 Oct 6. [Epub ahead of print]PMID: 20933296 [PubMed - as supplied by publisher]Related citations
Trace element concentrations in nesting flatback turtles (Natator depressus) from Curtis Island, Queensland, Australia.
Ikonomopoulou MP, Olszowy H, Limpus C, Francis R, Whittier J.
Mar Environ Res. 2010 Sep 25. [Epub ahead of print]PMID: 20933265 [PubMed - as supplied by publisher]Related citations
Correlation between serum selenium level and febrile seizures.
Mahyar A, Ayazi P, Fallahi M, Javadi A.
Pediatr Neurol. 2010 Nov;43(5):331-4.PMID: 20933176 [PubMed - in process]Related citations
Anti-Tumor Activity of Aloe vera Against DMBA/Croton Oil-Induced Skin Papillomagenesis in Swiss Albino Mice.
Saini M, Goyal PK, Chaudhary G.
J Environ Pathol Toxicol Oncol. 2010;29(2):127-35.PMID: 20932247 [PubMed - in process]Related citations
Aluminosilicate Relatives: Chalcogenoaluminogermanates Rb(3)(AlQ(2))(3)(GeQ(2))(7) (Q = S, Se).
Rothenberger A, Shafaei-Fallah M, Kanatzidis MG.
Inorg Chem. 2010 Oct 8. [Epub ahead of print]PMID: 20932019 [PubMed - as supplied by publisher]Related citations
A Nutrient Approach to Prostate Cancer Prevention: The Selenium and Vitamin E Cancer Prevention Trial (SELECT).
Dunn BK, Richmond ES, Minasian LM, Ryan AM, Ford LG.
Nutr Cancer. 2010 Oct;62(7):896-918.PMID: 20924966 [PubMed - in process]Related citations
Serum levels of selenium in patients with breast cancer before and after treatment of external beam radiotherapy.
Franca CA, Nogueira CR, Ramalho A, Carvalho AC, Vieira SL, Penna AB.
Ann Oncol. 2010 Oct 5. [Epub ahead of print]PMID: 20924074 [PubMed - as supplied by publisher]Related citations
Kenji Soda--researching enzymes with the spirit of an alpinist.
Yoshimura T, Mihara H, Ohshima T, Tanizawa K.
J Biochem. 2010 Oct;148(4):371-9.PMID: 20924059 [PubMed - in process]Related citations
Inhibitory effect of arsenic on aerobic gut flora in rat.
Choudhry ZK, Misbahuddin M, Hosain AK, Saleh AA.
Bangladesh Med Res Counc Bull. 2009 Dec;35(3):79-83.PMID: 20922909 [PubMed - in process]Related citations
[Endemic and biogeochemical features of the territory of Chuvash Republic]
[No authors listed]
Vestn Ross Akad Med Nauk. 2010;(8):40-6. Russian. PMID: 20922843 [PubMed - in process]Related citations
Interaction of uranyl with Se(IV) and Se(VI) in aqueous acid solutions by means of capillary electrophoresis.
Sladkov V.
Electrophoresis. 2010 Oct 4. [Epub ahead of print]PMID: 20922762 [PubMed - as supplied by publisher]Related citations
Ensemble Modeling Coupled with Six Element Concentrations in Human Blood for Cancer Diagnosis.
Chen H, Tan C, Wu T.
Biol Trace Elem Res. 2010 Oct 5. [Epub ahead of print]PMID: 20922500 [PubMed - as supplied by publisher]Related citations
Use of dietary vitamin E and selenium (Se) to increase the shelf life of modified atmosphere packaged light lamb meat.
Ripoll G, Joy M, Muñoz F.
Meat Sci. 2010 Sep 18. [Epub ahead of print]PMID: 20920835 [PubMed - as supplied by publisher]Related citations
Impacts of maternal selenium and nutritional level on growth, adiposity, and glucose tolerance in female offspring in sheep.
Vonnahme KA, Luther JS, Reynolds LP, Hammer CJ, Carlson DB, Redmer DA, Caton JS.
Domest Anim Endocrinol. 2010 Nov;39(4):240-8. Epub 2010 Jul 25.PMID: 20920781 [PubMed - in process]Related citations
Mutations disrupting selenocysteine formation cause progressive cerebello-cerebral atrophy.
Agamy O, Ben Zeev B, Lev D, Marcus B, Fine D, Su D, Narkis G, Ofir R, Hoffmann C, Leshinsky-Silver E, Flusser H, Sivan S, Söll D, Lerman-Sagie T, Birk OS.
Am J Hum Genet. 2010 Oct 8;87(4):538-44.PMID: 20920667 [PubMed - in process]Related citations
Developmental toxicity of selenium to Dolly Varden char (Salvelinus malma).
McDonald BG, Debruyn AM, Elphick JR, Davies M, Bustard D, Chapman PM.
Environ Toxicol Chem. 2010 Aug 3. [Epub ahead of print]PMID: 20891017 [PubMed - as supplied by publisher]Related citations
Iron Selenide (FeSe) is a crystal grown product generally immediately available in most volumes. Technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement. 
Iron is a Block D, Group 8, Period 4 element. The number of electrons in each of Iron's shells is 2, 8, 14, 2 and its electronic configuration is [Ar] 3d6 4s2. In its elemental form iron's CAS number is 7439-89-6. The iron atom has a radius of 124.1.pm and it's Van der Waals radius is 200.pm. Iron is not toxic. Iron is the most commonly used metal for commercial applications due to its hardness, historical availability and low cost. Once used on its own, it is now alloyed with nickel and other elements to produce steel and other high strength, non-corrosive structural metals. Iron as a metal and as its 
many compounds has numerous uses. It is a primary colorant in glass and ceramics. It is a catalyst. It is the basis for low grade magnets and because of its magnetic properties is used extensively in memory tape. Recent applications for Iron nanoparticles include
in water treatment of carbon tetrachloride in contaminated groundwater, magnetic data storage and resonance imaging (MRI) and in certain alloy and catalyst applications. Iron can also be introduced into processes using iron foil, pellets, rod and wire by thin film Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Organometallic and Chemical Vapor Deposition (MOCVD) for specific applications such as fuel cells and solar energy. Iron is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Iron was first discovered by Early Man.See Iron research below. 
Selenium is a Block P, Group 16, Period 4 element. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its 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. The EPA does not classify selenium as carcinogenic, although selenium sulfide 
is a probable carcinogen. Selenates and selenites which are compounds of selenium, are highly toxic. Hydrogen selenide gas (SeH2) is the most acutely toxic compound of selenium. Selenium exhibits both photovoltaic action, where light is converted directly into electricity, and photoconductive action, where the electrical resistance decreases with increased illumination. 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. The origin of the name Selenium comes from the Greek word "Selęnę" meaning moon. See selenium research below.
