Cadmium 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.
Cadmium is a Block D, Group 12, Period 5 element. The number of electrons in each of Cadmium's shells is 2, 8, 18, 18, 2 and its electronic configuration is [Kr] 4d10 5s2. In its elemental form cadmium's CAS number is 7440-43-9. The cadmium atom has a radius of 148.9.pm and it's Van der Waals radius is 158.pm. Cadmium and its compounds are very toxic. Cadmium is a component of some of the lowest melting alloys; it is used in bearing alloys with low coefficients of friction and great resistance to fatigue. Cadmium is used extensively in electroplating, which accounts for about 60% of its use. It is also used in many types of solder, for standard E.M.F.. cells, for nickel-cadmium batteries, and as a barrier to control nuclear fission. Cadmium compounds are used in black and white television phosphors and in blue and green phosphors for color television tubes and CRT monitors. Cadmium in glass and ceramic glazes creates a distinctive cadmium yellow. It forms a number of compounds, of which the sulfate is most common; the sulfide is used as a yellow pigment. Cadmium is similar to carbon in that it has a capacity to form stable covalently bonded molecular networks. Cadmium and its compounds are extremely toxic. Cadmium was first discovered by Fredrich Stromeyer in 1817. See Cadmium research below. It forms a number of compounds, of which the sulfate is most common; the sulfide is used as a yellow pigment. Cadmium is similar to carbon in that it has a capacity to form stable covalently bonded molecular networks. The name Cadmium originates from the Latin word 'cadmia' and the Greek word 'kadmeia'. See Cadmium 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.
Gadolinium chloride pretreatment ameliorates acute cadmium-induced hepatotoxicity.
Kyriakou LG, Tzirogiannis KN, Demonakou MD, Kourentzi KT, Mykoniatis MG, Panoutsopoulos GI.
Toxicol Ind Health. 2011 Dec 15. [Epub ahead of print]
PMID:
22173957
[PubMed - as supplied by publisher]
In vitro-cultured wheat spikes provide a simplified alternative for studies of cadmium uptake in developing grains.
Ganeshan S, Leis M, Drinkwater JM, Madsen LT, Jain JC, Chibbar RN.
J Sci Food Agric. 2011 Dec 16. doi: 10.1002/jsfa.5540. [Epub ahead of print]
PMID:
22173723
[PubMed - as supplied by publisher]
Evaluation of physiological importance of metallothionein protein expressed by Tetrahymena cadmium metallothionein 1 (TMCd1) gene in Escherichia coli.
Suleman A, Shakoori AR.
J Cell Biochem. 2011 Dec 15. doi: 10.1002/jcb.24030. [Epub ahead of print]
PMID:
22173614
[PubMed - as supplied by publisher]
Kinetic, Equilibrium and Thermodynamic Studies of Cadmium (II) Adsorption by Modified Agricultural Wastes.
Al Othman ZA, Hashem A, Habila MA.
Molecules. 2011 Dec 15;16(12):10443-56.
PMID:
22173337
[PubMed - in process]
Photochemical synthesis of N-adamantylhomoallylamines through addition of cyclic olefins to imines catalyzed by alumina grafted cadmium sulfide.
Aldemir M, Heinemann FW, Kisch H.
Photochem Photobiol Sci. 2011 Dec 14. [Epub ahead of print]
PMID:
22170328
[PubMed - as supplied by publisher]
Evaluation of the toxic effects of arsenite, chromate, cadmium, and copper using a battery of four bioassays.
Ko KS, Lee PK, Kong IC.
Appl Microbiol Biotechnol. 2011 Dec 15. [Epub ahead of print]
PMID:
22170103
[PubMed - as supplied by publisher]
Glutathione degradation is a key determinant of glutathione homeostasis.
Baudouin-Cornu P, Lagniel G, Kumar C, Huang ME, Labarre J.
J Biol Chem. 2011 Dec 13. [Epub ahead of print]
PMID:
22170048
[PubMed - as supplied by publisher]
[Cacoa and dark chocolate in cardiovascular prevention?].
Belz GG, Mohr-Kahaly S.
Dtsch Med Wochenschr. 2011 Dec;136(51-52):2657-63. Epub 2011 Dec 14. German.
PMID:
22169919
[PubMed - in process]
Do toxic heavy metals affect antioxidant defense mechanisms in humans?
Wieloch M, Kaminski P, Ossowska A, Koim-Puchowska B, Stuczynski T, Kuligowska-Prusinska M, Dymek G, Mankowska A, Odrowaz-Sypniewska G.
Ecotoxicol Environ Saf. 2011 Dec 12. [Epub ahead of print]
PMID:
22169892
[PubMed - as supplied by publisher]
Gender differences for associations between circulating levels of metals and coronary risk in the elderly.
Olsén L, Lind PM, Lind L.
Int J Hyg Environ Health. 2011 Dec 8. [Epub ahead of print]
PMID:
22169700
[PubMed - as supplied by publisher]
Differential toxicity of cadmium to mustard (Brassica juncia L.) genotypes under higher metal levels.
Bauddh K, Singh RP.
J Environ Biol. 2011 May;32(3):355-62.
PMID:
22167949
[PubMed - in process]
[Cd uptake in rice cultivars and Cd fractions in soil treated with organic acids and EDTA].
Zhang HB, Li YR, Xu WH, Chen GQ, Wang HX, Han GQ, Zhang XJ, Xiong ZT, Zhang JZ, Xie DT.
Huan Jing Ke Xue. 2011 Sep;32(9):2625-31. Chinese.
PMID:
22165231
[PubMed - in process]
Short-term effects of compost amendment on the fractionation of cadmium in soil and cadmium accumulation in rice plants.
Juang KW, Ho PC, Yu CH.
Environ Sci Pollut Res Int. 2011 Dec 9. [Epub ahead of print]
PMID:
22161300
[PubMed - as supplied by publisher]
Cadmium a metalloestrogen: are we convinced?
Silva N, Peiris-John R, Wickremasinghe R, Senanayake H, Sathiakumar N.
J Appl Toxicol. 2011 Dec 12. doi: 10.1002/jat.1771. [Epub ahead of print]
PMID:
22161274
[PubMed - as supplied by publisher]
Heterologous Expression of a Nelumbo nucifera Phytochelatin Synthase Gene Enhances Cadmium Tolerance in Arabidopsis thaliana.
Liu Z, Gu C, Chen F, Yang D, Wu K, Chen S, Jiang J, Zhang Z.
Appl Biochem Biotechnol. 2011 Dec 9. [Epub ahead of print]
PMID:
22161260
[PubMed - as supplied by publisher]
Low-affinity cation transporter (OsLCT1) regulates cadmium transport into rice grains.
Uraguchi S, Kamiya T, Sakamoto T, Kasai K, Sato Y, Nagamura Y, Yoshida A, Kyozuka J, Ishikawa S, Fujiwara T.
Proc Natl Acad Sci U S A. 2011 Dec 12. [Epub ahead of print]
PMID:
22160725
[PubMed - as supplied by publisher]
Heavy metal contamination in feathers of Western Reef Heron (Egretta gularis) and Siberian gull (Larus heuglini) from Hara biosphere reserve of Southern Iran.
Mansouri B, Babaei H, Hoshyari E.
Environ Monit Assess. 2011 Dec 9. [Epub ahead of print]
PMID:
22160473
[PubMed - as supplied by publisher]
Metal Concentrations in Surface Sediments of Beyler Reservoir (Turkey).
Findik O, Turan MA.
Bull Environ Contam Toxicol. 2011 Dec 9. [Epub ahead of print]
PMID:
22160166
[PubMed - as supplied by publisher]
Evaluation of genotoxic effects of lead in pottery-glaze workers using micronucleus assay, alkaline comet assay and DNA diffusion assay.
Kasuba V, Rozgaj R, Milic M, Zeljezic D, Kopjar N, Pizent A, Kljakovic-Gaspic Z, Jazbec A.
Int Arch Occup Environ Health. 2011 Dec 9. [Epub ahead of print]
PMID:
22160131
[PubMed - as supplied by publisher]
Two-dimensional assembly of tetrahedral chalcogenide clusters with tetrakis(imidazolyl)borate ligands.
Chen Z, Luo D, Luo X, Kang M, Lin Z.
Dalton Trans. 2011 Dec 12. [Epub ahead of print]
PMID:
22159355
[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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