Manganese Selenite is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered.American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia)and follows applicable ASTM testing standards.Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Manganese is a Block D, Group 7, Period 4 element. The number of electrons in each of Manganese's shells is 2, 8, 13, 2 and its electronic configuration is [Ar] 3d5 4s2. In its elemental form manganese's CAS number is 7439-96-5. The manganese atom has a radius of 136.7.pm and it's Van der Waals radius is 200.pm. Manganese in excess is toxic, in particular the inhalation of manganese in powder or dust form. Manganese metal is a key component of aluminumalloys. Manganese oxide is used in dry cell batteries. Manganese is used in steel production to remove sulfur and oxygen. Manganese is the colorant in natural amethyst stones and is used in glass and ceramics to also create the amethyst color. It is used like the element cerium to "decolorize" glass by offsetting the green from impurities of ferric ions. Permanganate is a powerful oxidizing agent and is used in medicine. It is added as a nutritional supplement for both human and animal consumption. Recently, the oxide in the form of various perovskite structures have demonstrated applications in oxygen generation and solid oxide fuel cells. Manganese was first discovered by Johann Gahn in 1774. The name Manganese originates from the Latin word mangnes meaning magnet. See Manganese 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 "Selênê" meaning moon. See selenium research below.
PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.
Citric acid production from Aspergillus niger MT-4 using hydrolysate extract of the insect Locusta migratoria.
Taskin M, Tasar GE, Incekara U.
Toxicol Ind Health. 2012 Feb 9. [Epub ahead of print]
PMID:
22323475
[PubMed - as supplied by publisher]
Seminal Plasma Metals Concentration with Respect to Semen Quality.
Li P, Zhong Y, Jiang X, Wang C, Zuo Z, Sha A.
Biol Trace Elem Res. 2012 Feb 10. [Epub ahead of print]
PMID:
22322880
[PubMed - as supplied by publisher]
Fermentable Carbohydrate Alters Hypothalamic Neuronal Activity and Protects Against the Obesogenic Environment.
Anastasovska J, Arora T, Sanchez Canon GJ, Parkinson JR, Touhy K, R Gibson G, Nadkarni NA, So PW, Goldstone AP, Thomas EL, K Hankir M, Van Loo J, Modi N, Bell JD, Frost G.
Obesity (Silver Spring). 2012 Jan 17. doi: 10.1038/oby.2012.6. [Epub ahead of print]
PMID:
22322344
[PubMed - as supplied by publisher]
Tremor, olfactory and motor changes in Italian adolescents exposed to historical ferro-manganese emission.
Lucchini RG, Guazzetti S, Zoni S, Donna F, Peter S, Zacco A, Salmistraro M, Bontempi E, Zimmerman NJ, Smith DR.
Neurotoxicology. 2012 Jan 31. [Epub ahead of print]
PMID:
22322213
[PubMed - as supplied by publisher]
Measuring hypoxia induced metal release from highly contaminated estuarine sediments during a 40day laboratory incubation experiment.
Banks JL, Ross DJ, Keough MJ, Eyre BD, Macleod CK.
Sci Total Environ. 2012 Feb 8. [Epub ahead of print]
PMID:
22321900
[PubMed - as supplied by publisher]
Catalytic remediation of 2-propanol on Pt-Mn/?-Al(2)O(3) bimetallic catalyst during catalytic combustion-Experimental study and response surface methodology (RSM) modeling.
Salari D, Niaei A, Aghazadeh F, Hosseini SA, Seyednajafi F.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2012 Feb;47(3):351-7.
PMID:
22320686
[PubMed - in process]
A healthy volunteer study to investigate trace element contamination of blood samples by stainless steel venepuncture needles.
Hodnett D, Wood DM, Raja K, Dargan PI, Shah AD.
Clin Toxicol (Phila). 2012 Feb;50(2):99-107.
PMID:
22320210
[PubMed - in process]
Homogeneity and stability studies during the preparation of a laboratory reference material of soy leaves for the determination of metals.
dos Santos AM, Lima DC, de Jesus RM, Ferreira SL.
J AOAC Int. 2011 Nov-Dec;94(6):1906-10.
PMID:
22320099
[PubMed - in process]
Initial Steps of Photosystem II de Novo Assembly and Preloading with Manganese Take Place in Biogenesis Centers in Synechocystis.
Stengel A, Gügel IL, Hilger D, Rengstl B, Jung H, Nickelsen J.
Plant Cell. 2012 Feb 7. [Epub ahead of print]
PMID:
22319052
[PubMed - as supplied by publisher]
Physiologic implications of metal-ion transport by ZIP14 and ZIP8.
Jenkitkasemwong S, Wang CY, Mackenzie B, Knutson MD.
Biometals. 2012 Feb 9. [Epub ahead of print]
PMID:
22318508
[PubMed - as supplied by publisher]
The Association of Manganese Superoxide Dismutase Expression in Barrett's Esophageal Progression With MnTBAP and Curcumin Oil Therapy.
Schiffman SC, Li Y, Martin RC.
J Surg Res. 2011 Dec 13. [Epub ahead of print]
PMID:
22316666
[PubMed - as supplied by publisher]
Monte-Carlo simulations of the new LNHB manganese bath facility.
Ogheard F, Chartier JL, Cassette P.
Appl Radiat Isot. 2012 Jan 25. [Epub ahead of print]
PMID:
22316586
[PubMed - as supplied by publisher]
Proteomic analysis of proteins associated with cellular senescence by calorie restriction in mesenchymal stem cells.
Kim HJ, Ji BR, Kim JS, Lee HN, Ha DH, Kim CW.
In Vitro Cell Dev Biol Anim. 2012 Feb 8. [Epub ahead of print]
PMID:
22314686
[PubMed - as supplied by publisher]
Metal concentrations in the soils and native plants surrounding the old flotation tailings pond of the Copper Mining and Smelting Complex Bor (Serbia).
Antonijevic MM, Dimitrijevic MD, Milic SM, Nujkic MM.
J Environ Monit. 2012 Feb 8. [Epub ahead of print]
PMID:
22314513
[PubMed - as supplied by publisher]
Research capacity development in South African manganese mines to bridge exposure and neuropathologic outcomes.
Nelson G, Criswell SR, Zhang J, Murray J, Racette BA.
Neurotoxicology. 2012 Jan 31. [Epub ahead of print]
PMID:
22313906
[PubMed - as supplied by publisher]
Manganese toxicity with ephedrone abuse manifesting as parkinsonism: a case report.
Iqbal M, Monaghan T, Redmond J.
J Med Case Reports. 2012 Feb 7;6(1):52. [Epub ahead of print]
PMID:
22313512
[PubMed - as supplied by publisher]
Occurrence and biodegradation of nonylphenol in the environment.
Mao Z, Zheng XF, Zhang YQ, Tao XX, Li Y, Wang W.
Int J Mol Sci. 2012;13(1):491-505. Epub 2012 Jan 4.
PMID:
22312266
[PubMed - in process]
Influencing the Symmetry of High-Nuclearity and High-Spin Manganese Oxo-Clusters: Supramolecular Approaches to Manganese-Based Keplerates and Chiral Solids.
Zhang L, Clérac R, Heijboer P, Schmitt W.
Angew Chem Int Ed Engl. 2012 Feb 6. doi: 10.1002/anie.201107358. [Epub ahead of print]
PMID:
22311623
[PubMed - as supplied by publisher]
Biodegradation of organic compounds of molasses melanoidin (MM) from biomethanated distillery spent wash (BMDS) during the decolourisation by a potential bacterial consortium.
Yadav S, Chandra R.
Biodegradation. 2012 Feb 5. [Epub ahead of print]
PMID:
22311589
[PubMed - as supplied by publisher]
Metals in Fish along the Southeast Coast of India.
Thiyagarajan D, Dhaneesh KV, Ajith Kumar TT, Kumaresan S, Balasubramanian T.
Bull Environ Contam Toxicol. 2012 Feb 5. [Epub ahead of print]
PMID:
22310845
[PubMed - as supplied by publisher]
Recent Research & Development for Selenite
Sodium selenite radiosensitizes hormone-refractory
prostate cancer xenograft tumors but Not intestinal crypt cells in In vivo. Tian J, Ning S, Knox SJ. Int J
Radiat Oncol Biol Phys. 2010 Jul 7. [Epub ahead of print] PubMed PMID: 20615620.
Development of morulae from the
oocytes of cultured sheep preantral follicles. Arunakumari G, Shanmugasundaram N, Rao VH. Theriogenology. 2010 Jul 6. [Epub
ahead of print] PubMed PMID: 20615540.
Aerobic biogenesis of selenium nanospheres by Bacillus
cereus isolated from coalmine soil. Dhanjal S, Cameotra SS. Microb Cell Fact. 2010 Jul 5;9(1):52. [Epub
ahead of print] PubMed PMID: 20602763.
Effect of selenium and vitamin E on oxidative stress in lambs
experimentally infected with Haemonchus contortus. do Reo Leal ML, de Camargo EV, Henrique Ross D, Molento MB, Dos Anjos Lopes
ST, da Rocha JB. Vet Res Commun. 2010 Jul 5.
[Epub ahead of print] PubMed PMID: 20607397.
Prevention
Effect in Selenite-Induced Cataract in Vivo and Antioxidative Effects in Vitro of
Crataegus pinnatifida Leaves. Wang T, Zhang P, Zhao C, Zhang Y, Liu H, Hu L, Gao X, Zhang D. Biol Trace Elem Res. 2010 Jul 2. [Epub ahead of
print] PubMed PMID: 20596791.
Speciation analysis of arsenic and
selenium compounds by CE-dynamic reaction cell-ICP-MS. Hsieh MW, Liu CL, Chen JH, Jiang SJ. Electrophoresis. 2010
Jul;31(13):2272-8. PubMed PMID: 20593404.
Response of nitrogen metabolism in lettuce plants subjected to
different doses and forms of selenium. Rios JJ, Blasco B, Rosales MA, Sanchez-Rodriguez E, Leyva R, Cervilla LM,
Romero L, Ruiz JM. J Sci Food Agric. 2010 Jun
10;90(11):1914-1919. [Epub ahead of print] PubMed PMID: 20602511.
Limited effects of
selenium substitution in the prevention of radiation-associated toxicities.
results of a randomized study in head and neck cancer patients. Büntzel J, Riesenbeck D, Glatzel M, Berndt-Skorka R, Riedel T, Mücke R,
Kisters K, Schönekaes KG, Schäfer U, Bruns F, Micke O. Anticancer Res.
2010 May;30(5):1829-32. PubMed PMID: 20592387.
Production of polyselenodipenicillamines, unique selenium compounds. Nishida H, Ando M, Itoh K, Ueda K, Nishida Y, Okamoto Y, Toda C, Kojima N. Chem Pharm
Bull (Tokyo). 2010;58(7):957-60. PubMed PMID: 20606346.
Characterization of Protein Targets of
Mammalian Thioredoxin Reductases. Turanov AA, Hatfield DL, Gladyshev VN. Methods Enzymol. 2010;474C:245-254. Epub 2010
Jun 20. PubMed PMID: 20609914.
Proud sponsors of Aeromat 2012. Please join us and our customers & co-sponsors Boeing and ATI on
June 18-20, 2012
in Charlotte, North Carolina
Manganese Selenite is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered.American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia)and follows applicable ASTM testing standards.Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Manganese is a Block D, Group 7, Period 4 element. The number of electrons in each of Manganese's shells is 2, 8, 13, 2 and its electronic configuration is [Ar] 3d5 4s2. In its elemental form manganese's CAS number is 7439-96-5. The manganese atom has a radius of 136.7.pm and it's Van der Waals radius is 200.pm. Manganese in excess is toxic, in particular the inhalation of manganese in powder or dust form. Manganese metal is a key component of aluminum alloys. Manganese oxide is used in dry cell
batteries. Manganese is used in steel production to remove sulfur and oxygen. Manganese is the colorant in natural 
amethyst stones and is used in glass and ceramics to also create the amethyst color. It is used like the element cerium to "decolorize" glass by offsetting the green from impurities of ferric ions. Permanganate is a powerful oxidizing agent and is used in medicine. It is added as a nutritional supplement for both human and animal consumption. Recently, the oxide in the form of various perovskite structures have demonstrated applications in oxygen generation and solid oxide fuel cells. Manganese was first discovered by Johann Gahn in 1774. The name Manganese originates from the Latin word mangnes meaning magnet. See Manganese 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 "Selênê" meaning moon. See selenium research below.
