Magnesium Selenite is generally immediately available in most volumes. Hydrate or anhydrous forms may be purchased. 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.
Magnesium is a Block S, Group 2, Period 3 element. The number of electrons in each of Magnesium's shells is 2, 8, 2 and its electronic configuration is [Ne] 3s2. In its elemental form magnesium's CAS number is 7439-95-4. The magnesium atom has a radius of 159.9.pm and it's Van der Waals radius is 173.pm. Magnesium the eighth most abundant element in the earth's crust. It is one third lighter than aluminum, and because of this is used in alloys that are essential for aerospace, satellite and missile construction. The metal improves the mechanical, fabrication, and welding characteristics of aluminum when used as an alloying agent. Uses also include flares and pyrotechnics due to its pyrophoric properties. Magnesium compounds, primarily magnesium oxide, are used mainly as refractory material in furnace linings for producing iron and steel, nonferrous metals, glass, and cement. High purity magnesium is found in dietary supplements. Magnesium was first discovered by Sir Humphrey Davy in 1808. The name Magnesium originates from a Greek district in Thessaly called Magnesia. See Magnesium research below.Magnesium the eighth most abundant element in the earth's crust. It is one third lighter than aluminum, and because of this is used in alloys that are essential for aerospace, satellite and missile construction. The metal improves the mechanical, fabrication, and welding characteristics of aluminum when used as an alloying agent. Uses also include flares and pyrotechnics due to its pyrophoric properties.
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.
Structure and Allostery of the PKA RIIß Tetrameric Holoenzyme.
Zhang P, Smith-Nguyen EV, Keshwani MM, Deal MS, Kornev AP, Taylor SS.
Science. 2012 Feb 10;335(6069):712-6.
PMID:
22323819
[PubMed - in process]
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]
Mg impurity in helium droplets.
Navarro J, Mateo D, Barranco M, Sarsa A.
J Chem Phys. 2012 Feb 7;136(5):054301.
PMID:
22320736
[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]
Dietary calcium intake and risk of type 2 diabetes: possible confounding by magnesium.
Dong JY, Qin LQ.
Eur J Clin Nutr. 2012 Feb 8. doi: 10.1038/ejcn.2012.5. [Epub ahead of print]
PMID:
22318650
[PubMed - as supplied by publisher]
Effect of magnesium supplementation on blood pressure: a meta-analysis.
Kass L, Weekes J, Carpenter L.
Eur J Clin Nutr. 2012 Feb 8. doi: 10.1038/ejcn.2012.4. [Epub ahead of print]
PMID:
22318649
[PubMed - as supplied by publisher]
Bio-monitoring for uranium using stream-side terrestrial plants and macrophytes.
Caldwell EF, Duff MC, Ferguson CE, Coughlin DP, Hicks RA, Dixon E.
J Environ Monit. 2012 Feb 9. [Epub ahead of print]
PMID:
22318309
[PubMed - as supplied by publisher]
[Diagnostic approach to hypocalcaemia and hypercalcaemia].
Janssen MJ, van der Velde RY, Swaanenburg JC, van den Bergh JP.
Ned Tijdschr Geneeskd. 2012;156(6):A3919. Dutch.
PMID:
22316680
[PubMed - in process]
Magnesium sulfate as an adjunct therapy in the management of severe generalized tetanus in a dog.
Simmonds EE, Alwood AJ, Costello MF.
J Vet Emerg Crit Care (San Antonio). 2011 Oct;21(5):542-6. doi: 10.1111/j.1476-4431.2011.00674.x. Epub 2011 Sep 14.
PMID:
22316201
[PubMed - in process]
Study of serum electrolytes in pregnancy induced hypertension.
Bera S, Siuli RA, Gupta S, Roy TG, Taraphdar P, Bal R, Ghosh A.
J Indian Med Assoc. 2011 Aug;109(8):546-8.
PMID:
22315860
[PubMed - in process]
Efficacy and safety of magnesium sulphate (MgSO4) in the treatment of eclampsia.
Alauddin M, Sarkar MK, Munshi S, Tapan N, Maltrayee SM.
J Indian Med Assoc. 2011 Jul;109(7):485-6, 488.
PMID:
22315841
[PubMed - in process]
Neurotoxicity caused by the treatment with platinum analogues.
Amptoulach S, Tsavaris N.
Chemother Res Pract. 2011;2011:843019. Epub 2011 Jun 27.
PMID:
22312559
[PubMed - in process]
Effects of Taurine-Magnesium Coordination Compound on Ionic Channels in Rat Ventricular Myocytes of Arrhythmia Induced by Ouabain.
Zhao L, Lou J, Wu H, Yin Y, Kang Y.
Biol Trace Elem Res. 2012 Feb 5. [Epub ahead of print]
PMID:
22311082
[PubMed - as supplied by publisher]
Magnesium sulfate protects fetal skin from intrauterine ischemia reperfusion injury.
Kaptanoglu AF, Arca T, Kilinc K.
Arch Dermatol Res. 2012 Feb 5. [Epub ahead of print]
PMID:
22310734
[PubMed - as supplied by publisher]
Tricyclic antidepressant poisoning treated by magnesium sulfate: a randomized, clinical trial.
Emamhadi M, Mostafazadeh B, Hassanijirdehi M.
Drug Chem Toxicol. 2012 Feb 7. [Epub ahead of print]
PMID:
22309432
[PubMed - as supplied by publisher]
Optimization of electrocoagulation process for the simultaneous removal of mercury, lead, and nickel from contaminated water.
Vasudevan S, Lakshmi J, Sozhan G.
Environ Sci Pollut Res Int. 2012 Feb 4. [Epub ahead of print]
PMID:
22307898
[PubMed - as supplied by publisher]
Refeeding syndrome or refeeding hypophosphatemia: a systematic review of cases.
Skipper A.
Nutr Clin Pract. 2012 Feb;27(1):34-40.
PMID:
22307490
[PubMed - in process]
Magnesium, calcium and strontium salts of phenylacetic acid.
Arlin JB, Kennedy AR, Shankland K.
Acta Crystallogr C. 2012 Feb;68(Pt 2):m29-33. Epub 2012 Jan 6.
PMID:
22307244
[PubMed - in process]
Characterization of SfPgdA, a Shigella flexneri peptidoglycan deacetylase required for bacterial persistence within polymorphonuclear neutrophils.
Kaoukab-Raji A, Biskri L, Bernardini ML, Allaoui A.
Microbes Infect. 2012 Jan 23. [Epub ahead of print]
PMID:
22307019
[PubMed - as supplied by publisher]
Understanding the different activities of highly promiscuous MbtI by computational methods.
Ferrer S, Martí S, Moliner V, Tuñón I, Bertrán J.
Phys Chem Chem Phys. 2012 Feb 3. [Epub ahead of print]
PMID:
22307014
[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.
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