Potassium 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.
Potassium is a Block S, Group 1, Period 4 element. The number of electrons in each of Potassium's shells is 2, 8, 8, 1 and its electronic configuration is [Ar] 4s1. In its elemental form potassium's CAS number is 7440-09-7. The potassium atom has a radius of 227.2 .pm and it's Van der Waals radius is 275.pm. Potassium is not toxic. Potassium is the seventh most abundant element on earth. In its metallic form it is one of the most reactive and electropositive of all metals and rapidly oxidizes. As with other metals of the alkali group, the metal decomposes in water with the evolution of hydrogen. It catches fire spontaneously in water. In high purity, potassium compounds have numerous pharmacological, medical, and electronics applications. Important compounds include the hydroxide, nitrate, carbonate, chloride, bromide, iodide, and sulfate. Lower purity compounds are used in pyrotechnics for its violet color on ignition and in glass and ceramic glazes to produce this color. Potassium also used as a nutrient in plant growth. Potassium was first discovered by Sir Humphrey Davy in 1807. The origin of the element name comes from the English word 'potash' meaning pot ashes and the Arabic word 'qali' which means alkali. The symbol K originates from the Latin word 'kalium'. See Potassium 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.
Aluminum potassium sulfate and tannic Acid injection for hemorrhoids.
Lim SW.
J Korean Soc Coloproctol. 2012 Apr;28(2):73-7. Epub 2012 Apr 30.
PMID:
22606645
[PubMed - in process]
Suppression of Ribosomal Function Triggers Innate Immune Signaling through Activation of the NLRP3 Inflammasome.
Vyleta ML, Wong J, Magun BE.
PLoS One. 2012;7(5):e36044. Epub 2012 May 14.
PMID:
22606244
[PubMed - as supplied by publisher]
Stroke preceding autoimmune encephalitis with neuronal potassium channel antibody.
Simal P, Garcia-García AM, Serna-Candel C, Egido JA.
BMJ Case Rep. 2012 May 8;2012. pii: bcr0820114637. doi: 10.1136/bcr.08.2011.4637.
PMID:
22605845
[PubMed - in process]
Life-threatening hyperkalemia - an overlooked acute kidney injury with a serum creatinine rise in the 'normal' range.
Latus J, Braun N, Alscher MD, Kimmel M.
BMJ Case Rep. 2012 May 8;2012. pii: bcr0120125691. doi: 10.1136/bcr.01.2012.5691.
PMID:
22605836
[PubMed - in process]
Ethylene glycol ingestion masked by concomitant ethanol intoxication.
Head JM.
BMJ Case Rep. 2012 Mar 20;2012. pii: bcr1220115326. doi: 10.1136/bcr.12.2011.5326.
PMID:
22605713
[PubMed - in process]
Neuroanatomy of melanocortin-4 receptor pathway in the lateral hypothalamic area.
Cui H, Sohn JW, Gautron L, Funahashi H, Williams KW, Elmquist JK, Lutter M.
J Comp Neurol. 2012 May 17. doi: 10.1002/cne.23145. [Epub ahead of print]
PMID:
22605619
[PubMed - as supplied by publisher]
Microvascular responses to aldosterone in hamster cheek pouch microcirculation.
Lapi D, Emdin M, Mastantuono T, Sapio D, Santillo M, Colantuoni A.
Clin Hemorheol Microcirc. 2012 May 16. [Epub ahead of print]
PMID:
22596229
[PubMed - as supplied by publisher]
Prevalence and Factors Associated with Hyperkalemia in Predialysis Patients Followed in a Low-Clearance Clinic.
Sarafidis PA, Blacklock R, Wood E, Rumjon A, Simmonds S, Fletcher-Rogers J, Ariyanayagam R, Al-Yassin A, Sharpe C, Vinen K.
Clin J Am Soc Nephrol. 2012 May 17. [Epub ahead of print]
PMID:
22595825
[PubMed - as supplied by publisher]
Chemical punch packed in venoms makes centipedes excellent predators.
Yang S, Liu Z, Xiao Y, Li Y, Rong M, Liang S, Zhang Z, Yu H, King GF, Lai R.
Mol Cell Proteomics. 2012 May 17. [Epub ahead of print]
PMID:
22595790
[PubMed - as supplied by publisher]
21 Days head-down bed rest induces weakening of cell-mediated immunity - Some spaceflight findings confirmed in a ground-based analog.
Kelsen J, Bartels LE, Dige A, Hvas CL, Frings-Meuthen P, Boehme G, Thomsen MK, Fenger-Grøn M, Dahlerup JF.
Cytokine. 2012 May 15. [Epub ahead of print]
PMID:
22595648
[PubMed - as supplied by publisher]
Efficient production of ultrapure manganese oxides via electrodeposition.
Cheney MA, Joo SW, Banerjee A, Min BK.
J Colloid Interface Sci. 2012 Apr 25. [Epub ahead of print]
PMID:
22595552
[PubMed - as supplied by publisher]
Radiolytic formation of non-toxic Cr(III) from toxic Cr(VI) in formate containing aqueous solutions: A system for water treatment.
Djouider F.
J Hazard Mater. 2012 May 3. [Epub ahead of print]
PMID:
22595544
[PubMed - as supplied by publisher]
Comparative effect of angiotensin II type I receptor blockers and calcium channel blockers on laboratory parameters in hypertensive patients with type 2 diabetes.
Nishida Y, Takahashi Y, Nakayama T, Asai S.
Cardiovasc Diabetol. 2012 May 17;11(1):53. [Epub ahead of print]
PMID:
22594344
[PubMed - as supplied by publisher]
Functional significance of M-type potassium channels in nociceptive cutaneous sensory endings.
Passmore GM, Reilly JM, Thakur M, Keasberry VN, Marsh SJ, Dickenson AH, Brown DA.
Front Mol Neurosci. 2012;5:63. Epub 2012 May 14.
PMID:
22593734
[PubMed - in process]
Growth, root formation, and nutrient value of triticale plants fertilized with biosolids.
Rauw WM, Teglas MB, Chandra S, Forister ML.
ScientificWorldJournal. 2012;2012:467052. Epub 2012 Apr 19.
PMID:
22593686
[PubMed - in process]
Electrochemistry/mass spectrometry as a tool in the investigation of the potent skin sensitizer p-phenylenediamine and its reactivity toward nucleophiles.
Jahn S, Faber H, Zazzeroni R, Karst U.
Rapid Commun Mass Spectrom. 2012 Jun 30;26(12):1453-64. doi: 10.1002/rcm.6249.
PMID:
22592989
[PubMed - in process]
One-step sonochemical synthesis of a graphene oxide-manganese oxide nanocomposite for catalytic glycolysis of poly(ethylene terephthalate).
Park G, Bartolome L, Lee KG, Lee SJ, Kim DH, Park TJ.
Nanoscale. 2012 May 16. [Epub ahead of print]
PMID:
22592889
[PubMed - as supplied by publisher]
Interventions for non-oliguric hyperkalaemia in preterm neonates.
Vemgal P, Ohlsson A.
Cochrane Database Syst Rev. 2012 May 16;5:CD005257.
PMID:
22592703
[PubMed - in process]
Ultrasound assisted free radical polymerization of glycidyl methacrylate by a new disite phase-transfer catalyst system: A kinetic study.
Sankar K, Rajendran V.
Ultrason Sonochem. 2012 Feb 22. [Epub ahead of print]
PMID:
22592149
[PubMed - as supplied by publisher]
Comparison of the Effects of Sevoflurane, Isoflurane, and Desflurane on Microcirculation in Coronary Artery Bypass Graft Surgery.
Ozarslan NG, Ayhan B, Kanbak M, Celebiog?lu B, Demircin M, Ince C, Aypar U.
J Cardiothorac Vasc Anesth. 2012 May 14. [Epub ahead of print]
PMID:
22592139
[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
Potassium 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.
Potassium is a Block S, Group 1, Period 4 element. The number of electrons in each of Potassium's shells is 2, 8, 8, 1 and its electronic configuration is [Ar] 4s1. In its elemental form potassium's CAS number is 7440-09-7. The potassium atom has a radius of 227.2 .pm and it's Van der Waals radius is 275.pm. Potassium is not toxic. Potassium is the seventh most abundant element on earth. In its metallic form it is one of the most reactive and 
electropositive of all metals and rapidly oxidizes. As with other metals of the alkali group, the metal 
decomposes in water with the evolution of hydrogen. It catches fire spontaneously in water. In high purity, potassium compounds have numerous pharmacological, medical, and electronics applications. Important compounds include the hydroxide, nitrate, carbonate, chloride, bromide, iodide, and sulfate. Lower purity compounds are used in pyrotechnics for its violet color on ignition and in glass and ceramic glazes to produce this color. Potassium also used as a nutrient in plant growth. Potassium was first discovered by Sir Humphrey Davy in 1807. The origin of the element name comes from the English word 'potash' meaning pot ashes and the Arabic word 'qali' which means alkali. The symbol K originates from the Latin word 'kalium'. See Potassium 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.
