Sodium 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.
Sodium is a Block S, Group 1, Period 3 element. The number of electrons in each of Sodium's shells is 2, 8, 1 and its electronic configuration is [Ne] 3s1. In its elemental form sodium's CAS number is 7440-23-5. The sodium atom has a radius of 185.8.pm and it's Van der Waalsradius is 227.pm. Sodium is not toxic but skin contact may cause irritation and burns. Sodium is primarily used in its metallic form in the production of chemical esters and in the manufacturing of various other organic compounds. The metal is used in the alloy of tin, nickel and copper for its structural characteristics. Sodium is availableas 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. High purity sodium compounds are used as reducing agents. Sodium compounds are used in low tech applications throughout industry. Sodium was first discovered by Sir Humphrey Davy in 1807. The name Sodium comes from the Latin word "natrium" which means sodium carbonate. See Sodium 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.
Evaluation of analgesic efficacy of bromfenac sodium ophthalmic solution 0.09% versus ketorolac tromethamine ophthalmic solution 0.5% following LASEK or Epi-LASIK.
Wang XJ, Wong SH, Givergis R, Chynn EW.
Clin Ophthalmol. 2011;5:1451-7. Epub 2011 Oct 7.
PMID:
22034570
[PubMed - in process]
Risk of Poor Outcomes with Novel and Traditional Biomarkers at Clinical AKI Diagnosis.
Hall IE, Coca SG, Perazella MA, Eko UU, Luciano RL, Peter PR, Han WK, Parikh CR.
Clin J Am Soc Nephrol. 2011 Oct 27. [Epub ahead of print]
PMID:
22034509
[PubMed - as supplied by publisher]
Chemoenzymatic synthesis of homogeneous ultralow molecular weight heparins.
Xu Y, Masuko S, Takieddin M, Xu H, Liu R, Jing J, Mousa SA, Linhardt RJ, Liu J.
Science. 2011 Oct 28;334(6055):498-501.
PMID:
22034431
[PubMed - in process]
Association between the lack of teeth and the expression of myosins in masticatory muscles of microphthalmic mouse.
Nariyama M, Kota Y, Kaneko S, Asada Y, Yamane A.
Cell Biochem Funct. 2011 Oct 27. doi: 10.1002/cbf.1821. [Epub ahead of print]
PMID:
22034127
[PubMed - as supplied by publisher]
Serum Calcium Concentration Affects Signal Changes on Diffusion-Weighted Imaging in Hypoglycemic Encephalopathy.
Koh E, Tsai LK, Hong CT.
AJNR Am J Neuroradiol. 2011 Oct 27. [Epub ahead of print]
PMID:
22033722
[PubMed - as supplied by publisher]
Severe case and literature review of primary erythromelalgia: Novel SCN9A gene mutation.
Skeik N, Rooke TW, Davis MD, Davis DM, Kalsi H, Kurth I, Richardson RC.
Vasc Med. 2011 Oct 27. [Epub ahead of print]
PMID:
22033523
[PubMed - as supplied by publisher]
Selenium homeostasis and induction of thioredoxin reductase during long term selenite supplementation in the rat.
Erkhembayar S, Mollbrink A, Eriksson M, Larsen EH, Eriksson LC.
J Trace Elem Med Biol. 2011 Oct 25. [Epub ahead of print]
PMID:
22033016
[PubMed - as supplied by publisher]
The effect of hydroxyapatite presence on the degree of conversion and polymerization rate in a model self-etching adhesive.
Zhang Y, Wang Y.
Dent Mater. 2011 Oct 25. [Epub ahead of print]
PMID:
22032933
[PubMed - as supplied by publisher]
Relationship between sodium intake and sleep apnea in patients with heart failure.
Kasai T, Arcand J, Allard JP, Mak S, Azevedo ER, Newton GE, Bradley TD.
J Am Coll Cardiol. 2011 Nov 1;58(19):1970-4.
PMID:
22032708
[PubMed - in process]
Transcription of detoxification genes after permethrin selection in the mosquito Aedes aegypti.
Saavedra-Rodriguez K, Suarez AF, Salas IF, Strode C, Ranson H, Hemingway J, Black Iv WC.
Insect Mol Biol. 2011 Oct 27. doi: 10.1111/j.1365-2583.2011.01113.x. [Epub ahead of print]
PMID:
22032702
[PubMed - as supplied by publisher]
Reactive Aldehyde Metabolites from the Anti-HIV Drug Abacavir: Amino Acid Adducts as Possible Factors in Abacavir Toxicity.
Charneira C, Godinho AL, Oliveira MC, Pereira SA, Monteiro EC, Marques MM, Antunes AM.
Chem Res Toxicol. 2011 Oct 27. [Epub ahead of print]
PMID:
22032494
[PubMed - as supplied by publisher]
The effectiveness of intensive nursing care on seasonal variation of blood pressure in patients on peritoneal dialysis.
Quan L, Dong J, Li Y, Zuo L.
J Adv Nurs. 2011 Oct 27. doi: 10.1111/j.1365-2648.2011.05833.x. [Epub ahead of print]
PMID:
22032423
[PubMed - as supplied by publisher]
Short communication: Addition of varying amounts of sodium bicarbonate to colostrum replacer: Effects on immunoglobulin G absorption and serum bicarbonate in neonatal calves.
Cabral RG, Chapman CE, Haines DM, Brito AF, Erickson PS.
J Dairy Sci. 2011 Nov;94(11):5656-60.
PMID:
22032388
[PubMed - in process]
Plasma potassium-lowering effect of oral glucose, sodium bicarbonate, and the combination thereof in healthy neonatal dairy calves.
Grünberg W, Hartmann H, Burfeind O, Heuwieser W, Staufenbiel R.
J Dairy Sci. 2011 Nov;94(11):5646-55.
PMID:
22032387
[PubMed - in process]
Effect of method of delivery of sodium butyrate on rumen development in newborn calves.
Górka P, Kowalski ZM, Pietrzak P, Kotunia A, Jagusiak W, Holst JJ, Guilloteau P, Zabielski R.
J Dairy Sci. 2011 Nov;94(11):5578-88.
PMID:
22032381
[PubMed - in process]
Effects of partially replacing skimmed milk powder with dairy ingredients on rheology, sensory profiling, and microstructure of probiotic stirred-type yogurt during cold storage.
Marafon AP, Sumi A, Granato D, Alcântara MR, Tamime AY, Nogueira de Oliveira M.
J Dairy Sci. 2011 Nov;94(11):5330-40.
PMID:
22032355
[PubMed - in process]
Bio-based nanocomposite coating to preserve quality of Fior di latte cheese.
Gammariello D, Conte A, Buonocore GG, Del Nobile MA.
J Dairy Sci. 2011 Nov;94(11):5298-304.
PMID:
22032352
[PubMed - in process]
Sodium alginate as an ideal submucosal injection material for endoscopic submucosal resection: preliminary experimental and clinical study.
Akagi T, Yasuda K, Tajima M, Suzuki K, Inomata M, Shiraishi N, Sato Y, Kitano S.
Gastrointest Endosc. 2011 Nov;74(5):1026-32.
PMID:
22032316
[PubMed - in process]
An Observational Prospective Study of Topical Acidified Nitrite for Killing Methicillin-Resistant Staphylococcus aureus (MRSA) in Contaminated Wounds.
Ormerod AD, Shah AA, Li H, Benjamin NB, Ferguson GP, Leifert C.
BMC Res Notes. 2011 Oct 27;4(1):458. [Epub ahead of print]
PMID:
22032298
[PubMed - as supplied by publisher]
[Determination of three sweeteners in vinegars by solid phase extraction-high performance liquid chromatography/tandem mass spectrometry].
Yin F, Ding Z, Cao X, Gao J, Jiang D, Kuang D, Gu Y, He G.
Se Pu. 2011 Jun;29(6):554-7. Chinese.
PMID:
22032168
[PubMed - in process]
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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