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Selenium Powder
High Purity Se Powder
7785-49-2
Product
Product Code
Order or Specifications
99% Selenium Powder
SE-M-02-P
 Contact American Elements
99.9% Selenium Powder
SE-M-03-P
 Contact American Elements
99.99% Selenium Powder
SE-M-04-P
 Contact American Elements
99.999% Selenium Powder
SE-M-05-P
 Contact American Elements
American Elements specializes in producing high purity Selenium Powder with the smallest possible average grain sizes for use in preparation of pressed and bonded sputtering targets and in 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), Metallic-Organic and Chemical Vapor Deposition (MOCVD). Powders are also useful in any application where high surface areas are desired such as water treatment and in fuel cell and solar applications. Nanoparticles (See also Nanotechnology Information and Quantum Dots) also produce very high surface areas. Our standard Powder particle sizes average in the range of - 325 mesh, - 100 mesh, 10-50 microns and submicron (< 1 micron). We can also provide many materials in the nanoscale range. See research below. We also produce Selenium as rod, ingot, pieces, pellets, disc, granules, wire, and in compound forms, such as oxide. Other shapes are available by request.

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.

Formula CAS No. Appearance Molecular Weight
Se 7785-49-2 Yellow 78.96
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Recent Research & Development for Selenium

  • Direct Observation of Brownian Dynamics of Hard Colloidal Nanorods. Nano Lett. 2007 Oct 3; [Epub ahead of print]

  • The level of selenium and some other trace elements in different libyan arable soils using instrumental neutron activation analysis. Biol Trace Elem Res. 2007 Oct;119(1):89-96.

  • Cadmium, lead, and selenium in cord blood and thyroid hormone status of newborns. Biol Trace Elem Res. 2007 Oct;119(1):10-8.

  • Effect of low dose antioxidant vitamin and trace element supplementation on the urinary concentrations of thromboxane and prostacyclin metabolites. J Am Coll Nutr. 2007 Oct;26(5):405-11.

  • The protective role of selenium in rape seedlings subjected to cadmium stress. J Plant Physiol. 2007 Oct 1; [Epub ahead of print]

  • Selenium. Novartis Found Symp. 2007;282:143-9; discussion 149-53, 212-8.

  • Evaluation of the antimicrobial activity of ebselen: Role of the yeast plasma membrane H(+)-ATPase. J Biochem Mol Toxicol. 2007 Oct 2;21(5):252-264 [Epub ahead of print]

  • X-ray structures of two proteins belonging to Pfam DUF178 revealed unexpected structural similarity to the DUF191 Pfam family. BMC Struct Biol. 2007 Oct 1;7(1):62 [Epub ahead of print]

  • Interleukin-18: a pro-inflammatory cytokine that plays an important role in acute pancreatitis. Expert Opin Ther Targets. 2007 Oct;11(10):1261-71.

  • Effects of monosodium glutamate on food acceptance and toxicity of selenium in rats. Indian J Exp Biol. 2007 Sep;45(9):802-6.

  • Medical geology in tropical countries with special reference to Sri Lanka.
    Environ Geochem Health. 2007 Jan 26; [Epub ahead of print]

  • Antioxidant treatment for amyotrophic lateral sclerosis / motor neuron disease.
    Cochrane Database Syst Rev. 2007 Jan 24;(1):CD002829.

  • Contaminants in Lesser and Greater Scaup Staging on the Lower Great Lakes.
    Arch Environ Contam Toxicol. 2007 Jan 25; [Epub ahead of print]

  • Lewis acid catalyzed ring-opening reactions of methylenecyclopropanes with diphenylphosphine oxide in the presence of sulfur or selenium.
    Org Biomol Chem. 2007 Feb 7;5(3):438-40. Epub 2006 Dec 14.

  • Selenium status in Southern Tasmania.
    Eur J Clin Nutr. 2007 Jan 24; [Epub ahead of print]

  • Supplementation with vitamins C, E, beta-carotene and selenium has no effect on anti-oxidant status and immune responses in allergic adults: a randomized controlled trial.
    Clin Exp Allergy. 2007 Feb;37(2):180-7.

  • Neuronal and ependymal expression of selenoprotein P in the human brain.
    J Neural Transm. 2007 Jan 25; [Epub ahead of print]

  • Seasonal fluctuations of selenium and sulfur accumulation in selenium hyperaccumulators and related nonaccumulators.
    New Phytol. 2007;173(3):517-25.

  • An unusual myopathy: Speckled muscle fibers due to enlarged mitochondria.
    Muscle Nerve. 2007 Jan 22; [Epub ahead of print]

  • Enhanced tight junction function in human breast cancer cells by antioxidant, selenium and polyunsaturated lipid.
    J Cell Biochem. 2007 Jan 22; [Epub ahead of print]

 

 

 

 

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