Barium Arsenate 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.
Barium is a Block S, Group 2, Period 6 element. The number of electrons in each of Barium's shells is 2, 8, 18, 18, 8, 2 and its electronic configuration is [Xe] 6s2. In its elemental form barium's CAS number is 7440-39-3. The barium atom has a radius of 217.4.pm and it's Van der Waals radius is 200.pm. Barium powder can ignite spontaneously in air and when Barium compounds are water or acid soluble, they are very poisonous. Barium sulfate which is used in x-ray imaging, is highly insoluble in water, and consequently completely removed from the digestive tract. Barium is a member of the alkaline-earth metals. It has technical applications in glass, electronics and medicine. It is also used in paints and colorants. Electronic coatings based on barium titanate are essential to cell phones and other microelectronics. It has long been used in medical diagnostic techniques because it makes a good x-ray contrast medium. Barium is a dopant in various fluorescent lamp coating formulas. Barium information, including Technical Data, Safety Data and its High Purity properties , research , applications and other useful facts are discussed here. Scientific facts such as the atomic structure, ionization energy , abundance on Earth , conductivity and thermal properties are included. See Barium research below.
Arsenic is a Block P, Group 15, Period 4 element. The number of electrons in each of Arsenic's shells is 2, 8, 18, 5 and its electronic configuration is [Ar] 3d10 4s2 4p3. In its elemental form arsenic's CAS number is 1327-53-3. The arsenic atom has a radius of 124.5.pm and it's Van der Waals radius is 185.pm. Arsenic in the organic form is not harmful but in the inorganic form it is extremely toxic even in very small amounts. Arsenic has numerous applications as a semiconductor and other electronic applications as Indium arsenide, silicon arsenide and tin arsenidea. Arsenic is finding increasing uses as a doping agent in solid-state devices such as transistors. Gallium arsenide is used as a laser material to convert electricity directly into coherent light. Arsenic is used in bronzing and for hardening and improving the sphericity of shot. Due to its toxicity, arsenic compounds are used in insecticides and wood preservation.Arsenic 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. Arsenic information, including Technical Data, Safety Data and its High Purity properties, research, applications and other useful facts are discussed here. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included. See Arsenic 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.
Efficacy and safety of leuprorelin in patients with spinal and bulbar muscular atrophy (JASMITT study): a multicentre, randomised, double-blind, placebo-controlled trial. Katsuno M, Banno H, Suzuki K, Takeuchi Y, Kawashima M, Yabe I, Sasaki H, Aoki M, Morita M, Nakano I, Kanai K, Ito S, Ishikawa K, Mizusawa H, Yamamoto T, Tsuji S, Hasegawa K, Shimohata T, Nishizawa M, Miyajima H, Kanda F, Watanabe Y, Nakashima K, Tsujino A, Yamashita T, Uchino M, Fujimoto Y, Tanaka F, Sobue G; for the Japan SBMA Interventional Trial for TAP-144-SR (JASMITT) study group. Lancet Neurol. 2010 Sep;9(9):875-884. Epub 2010 Aug 4. PubMed PMID: 20691641.
Multiple primary malignant tumors of upper gastrointestinal tract: A novel role of (18)F-FDG PET/CT. Sun L, Wan Y, Lin Q, Sun YH, Zhao L, Luo ZM, Wu H. World J Gastroenterol. 2010 Aug 21;16(31):3964-9. PubMed PMID: 20712059.
Gastrointestinal lymphoma: a spectrum of fluoroscopic and CT findings. Engin G, Korman U. Diagn Interv Radiol. 2010 Aug 20. doi: 10.4261/1305-3825.DIR.3332-10.3. [Epub ahead of print] PubMed PMID: 20725903.
Incomplete reprogramming after fusion of human multipotent stromal cells and bronchial epithelial cells. Curril IM, Koide M, Yang CH, Segal A, Wellman GC, Spees JL. FASEB J. 2010 Aug 19. [Epub ahead of print] PubMed PMID: 20724526.
Ca2+ - dependent and Na+ - dependent K+ conductances contribute to a slow AHP in thalamic paraventricular nucleus neurons: a novel target for orexin receptors. Zhang L, Kolaj M, Renaud LP. J Neurophysiol. 2010 Aug 18. [Epub ahead of print] PubMed PMID: 20719929.
Synthesis, crystal and electronic structures, and physical properties of caged ternary Cu-rich antimonide: BaCu(7.31(3))Sb5. Zheng WZ, Wang P, Wu LM, Chen L. Inorg Chem. 2010 Aug 16;49(16):7491-6. PubMed PMID: 20690758.
Mechanisms of the relaxant effect of a Danshen and Gegen formulation on rat isolated cerebral basilar artery. Lam FF, Deng SY, Ng ES, Yeung JH, Kwan YW, Lau CB, Koon JC, Zhou L, Zuo Z, Leung PC, Fung KP. J Ethnopharmacol. 2010 Aug 16. [Epub ahead of print] PubMed PMID: 20723594.
Lateral supragenicular pedicle perforator flap: Clinical results and vascular anatomy. Nguyen AT, Wong C, Mojallal A, Saint-Cyr M. J Plast Reconstr Aesthet Surg. 2010 Aug 15. [Epub ahead of print] PubMed PMID: 20716494.
Ionization Behavior, Stoichiometry of Association, and Accessibility of Functional Groups in the Active Layers of Reverse Osmosis and Nanofiltration Membranes. Coronell O, Gonza´lez MI, Marin~as BJ, Cahill DG. Environ Sci Technol. 2010 Aug 11. [Epub ahead of print] PubMed PMID: 20701293.
Does the amount of tagged stool and fluid significantly affect the radiation exposure in low-dose CT colonography performed with an automatic exposure control? Lim HK, Lee KH, Kim SY, Kim KJ, Kim B, Lee H, Park SH, Yanof JH, Hwang SS, Kim YH. Eur Radiol. 2010 Aug 11. [Epub ahead of print] PubMed PMID: 20700594.
Dynamics of highly excited barium atoms deposited on large argon clusters. I. General trends. Masson A, Poisson L, Gaveau MA, Soep B, Mestdagh JM, Mazet V, Spiegelman F. J Chem Phys. 2010 Aug 7;133(5):054307. PubMed PMID: 20707532.
MDCT appearance of the appendix: how does the low-density barium sulfate oral contrast agent affect it? Yaghmai V, Aghaei-Lasboo A, Brandwein WM, Tochetto S, Mafi JN, Miller FH, Nikolaidis P. Emerg Radiol. 2010 Aug 4. [Epub ahead of print] PubMed PMID: 20683631.
Ultraviolet-visible absorption and luminescence properties of quinacridone-barium sulfate solid mixtures. Gentili PL, Clementi C, Romani A. Appl Spectrosc. 2010 Aug;64(8):923-9. PubMed PMID: 20719057.
A 74-year-old woman with Dysphagia: what is your diagnosis by endoscopic and barium swallow finding? Lee JW, Kwon JG, Kim EY, Jung JT, Han J, Kim HG. J Neurogastroenterol Motil. 2010 Jul;16(3):331-2. Epub 2010 Jul 26. PubMed PMID: 20680175; PubMed Central PMCID: PMC2912129.
Is there a proper way to treat shortened oesophagus? About a series of 67 patients. Pirard L, Weerts JM, Buldgen B, Deben L, Dewandre JM, Francart D, Monami B, Markiewicz S, Wahlen C, Jehaes C. Acta Chir Belg. 2010 May-Jun;110(3):275-9. PubMed PMID: 20690507.
The Humanized NOD/SCID Mouse as a Preclinical Model to Study the Fate of Encapsulated Human Islets. Vaithilingam V, Oberholzer J, Guillemin GJ, Tuch BE. Rev Diabet Stud. 2010 Spring;7(1):62-73. Epub 2010 May 10. PubMed PMID: 20703439.
Conventional barium enema in early pregnancy. Han BH, Han JY, Choi JS, Ahn HK, Nava-Ocampo AA. J Obstet Gynaecol. 2010;30(6):559-62. PubMed PMID: 20701501.
Screening for Colorectal Cancer: An Updated Systematic Review [Internet]. Whitlock EP, Lin J, Liles E, Beil T, Fu R, O'Connor E, Thompson RN, Cardenas T. Rockville (MD): Agency for Healthcare Research and Quality (US); 2008 Oct. Available from http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=es65v1 PubMed PMID: 20722162.
Screening for Colorectal Cancer in Adults [Internet]. Pignone MP, Rich M, Teutsch S, Berg A, Lohr K. Rockville (MD): Agency for Healthcare Research and Quality (US); 2002 Jul. Available from http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=es7 PubMed PMID: 20722168.
Recent Research & Development for Arsenic
Arsenic uptake and speciation and the effects of phosphate nutrition in hydroponically grown kikuyu grass (Pennisetum clandestinum Hochst).
Panuccio MR, Logoteta B, Beone GM, Cagnin M, Cacco G.
Environ Sci Pollut Res Int. 2012 Feb 25. [Epub ahead of print]
PMID:
22367495
[PubMed - as supplied by publisher]
Comparison of three sequential extraction procedures for fractionation of arsenic from highly polluted mining sediments.
Larios R, Fernández-Martínez R, Rucandio I.
Anal Bioanal Chem. 2012 Feb 19. [Epub ahead of print]
PMID:
22349399
[PubMed - as supplied by publisher]
Do radial oxygen loss and external aeration affect iron plaque formation and arsenic accumulation and speciation in rice?
Wu C, Ye Z, Li H, Wu S, Deng D, Zhu Y, Wong M.
J Exp Bot. 2012 Feb 15. [Epub ahead of print]
PMID:
22345639
[PubMed - as supplied by publisher]
Soil pollution assessment and identification of hyperaccumulating plants in chromated copper arsenate (CCA) contaminated sites, Korea.
Usman AR, Lee SS, Awad YM, Lim KJ, Yang JE, Ok YS.
Chemosphere. 2012 Feb 16. [Epub ahead of print]
PMID:
22342337
[PubMed - as supplied by publisher]
Arsenate toxicity and stress responses in the freshwater ciliate Tetrahymena pyriformis.
Zhang YY, Yang J, Yin XX, Yang SP, Zhu YG.
Eur J Protistol. 2012 Feb 16. [Epub ahead of print]
PMID:
22342134
[PubMed - as supplied by publisher]
Field Testing of Arsenic in Groundwater Samples of Bangladesh Using a Test Kit Based on Lyophilized Bioreporter Bacteria.
Siegfried K, Endes C, Bhuiyan AF, Kuppardt A, Mattusch J, van der Meer JR, Chatzinotas A, Harms H.
Environ Sci Technol. 2012 Feb 28. [Epub ahead of print]
PMID:
22339623
[PubMed - as supplied by publisher]
Application of HPLC-ICP-MS and HPLC-ESI-MS Procedures for Arsenic Speciation in Seaweeds.
Hsieh YJ, Jiang SJ.
J Agric Food Chem. 2012 Feb 27. [Epub ahead of print]
PMID:
22339408
[PubMed - as supplied by publisher]
Arsenic encapsulation using Portland cement with ferrous sulfate/lime and Terra-BondT technologies - Microcharacterization and leaching studies.
Randall PM.
Sci Total Environ. 2012 Feb 13. [Epub ahead of print]
PMID:
22335881
[PubMed - as supplied by publisher]
Speciation of Arsenic, Chromium, and Vanadium in Red Mud Samples from the Ajka Spill Site, Hungary.
Burke IT, Mayes WM, Peacock CL, Brown AP, Jarvis AP, Gruiz K.
Environ Sci Technol. 2012 Feb 27. [Epub ahead of print]
PMID:
22324637
[PubMed - as supplied by publisher]
KlRox1p contributes to yeast resistance to metals and is necessary for KlYCF1 expression in the presence of cadmium.
Rodríguez Torres AM, Lamas Maceiras M, Rodríguez Belmonte E, Núñez Naveira L, Blanco Calvo M, Cerdán ME.
Gene. 2012 Feb 1. [Epub ahead of print]
PMID:
22310389
[PubMed - as supplied by publisher]
Differential response of oxidative stress and thiol metabolism in contrasting rice genotypes for arsenic tolerance.
Tripathi P, Mishra A, Dwivedi S, Chakrabarty D, Trivedi PK, Singh RP, Tripathi RD.
Ecotoxicol Environ Saf. 2012 Feb 4. [Epub ahead of print]
PMID:
22309938
[PubMed - as supplied by publisher]
Structural and electronic property responses to the arsenic/phosphorus exchange in GC-related DNA of the B-form.
Gu J, Wang J, Xie Y, Leszczynski J, Schaefer HF 3rd.
J Comput Chem. 2012 Mar 30;33(8):817-21. doi: 10.1002/jcc.22880. Epub 2012 Feb 1.
PMID:
22298190
[PubMed - in process]
Arsenic speciation and volatilization from flooded paddy soils amended with different organic matters.
Huang H, Jia Y, Sun GX, Zhu YG.
Environ Sci Technol. 2012 Feb 21;46(4):2163-8. Epub 2012 Feb 10.
PMID:
22295880
[PubMed - in process]
Effect of Arsenic on Nodulation and Nitrogen Fixation of Blackgram (Vigna mungo).
Mandal SM, Gouri SS, De D, Das BK, Mondal KC, Pati BR.
Indian J Microbiol. 2011 Jan;51(1):44-7. Epub 2011 Jan 26.
PMID:
22282627
[PubMed - in process]
The genome of Halomonas strain GFAJ-1: blueprint to fame or business as usual.
Kim EH, Rensing C.
J Bacteriol. 2012 Jan 20. [Epub ahead of print]
PMID:
22267509
[PubMed - as supplied by publisher]
Synthesis of mixed coating with multi-functional groups for in-tube hollow fiber solid phase microextraction-high performance liquid chromatography-inductively coupled plasma mass spectrometry speciation of arsenic in human urine.
Chen B, Hu B, He M, Mao X, Zu W.
J Chromatogr A. 2012 Mar 2;1227:19-28. Epub 2012 Jan 8.
PMID:
22265781
[PubMed - in process]
Lotharmeyerite, Ca(Zn,Mn)(2)(AsO(4))(2)(H(2)O,OH)(2).
Yang YW, Evans SH, Downs RT, Yang H.
Acta Crystallogr Sect E Struct Rep Online. 2012 Jan 1;68(Pt 1):i9-i10. Epub 2011 Dec 23.
PMID:
22259316
[PubMed - in process]
Raman spectroscopy of the multianion mineral gartrellite-PbCu(Fe(3+),Cu)(AsO(4))(2)(OH,H(2)O)(2).
Frost RL, Xi Y, Palmer SJ.
Spectrochim Acta A Mol Biomol Spectrosc. 2012 Apr;89:93-8. Epub 2011 Dec 23.
PMID:
22257714
[PubMed - in process]
Arsenic speciation in edible alga samples by microwave-assisted extraction and high performance liquid chromatography coupled to atomic fluorescence spectrometry.
García-Salgado S, Quijano MA, Bonilla MM.
Anal Chim Acta. 2012 Feb 10;714:38-46. Epub 2011 Dec 8.
PMID:
22244135
[PubMed - in process]
The contribution of microbial mats to the arsenic geochemistry of an ancient gold mine.
Drewniak L, Maryan N, Lewandowski W, Kaczanowski S, Sklodowska A.
Environ Pollut. 2012 Mar;162:190-201. Epub 2011 Dec 11.
PMID:
22243864
[PubMed - in process]
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