. A dedicated method based on the coupling of liquid chromatography with multiplexed detection (ICP-MS, ESI-Orbitrap MS(/MS)) was developed for the speciation of low-molecular weight (<5 kDa) selenium . 34.2 Oz. Selenium | Se | CID 6326970 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. . In soils, the average content of selenium is 0.4 mg kg 1, with high variation worldwide. Lc Classification Number. Best . Molecular Weight . No ratings or reviews yet No ratings or reviews yet. 392F. The numerical soil copper, dieldrin and pentachlorophenol soil . Convert 0.108 moles AsCl5 (molecular weight 253 g/mol) to grams. 100. . Complementary analytical techniques were used to collect information enabling the characterization of selenium speciation. Percentage of Se in peroxidase anhydrous enzyme is 0.5 % by weight (At. National Library of Medicine. 7782-49-2. molecular weight of Selenium or mol The molecular formula for Selenium is Se. DE EN FR KO PT ES TH TR. Certificate of Analysis (COAs) . Selenium CAS Number: 7782-49-2.Alfa Chemistry offers an extensive catalog of building blocks, reagents, catalysts, reference materials and research chemicals. Nanoparticles also produce very high surface areas. InChIKey. Nuclear Quadrupole Resonance Spectroscopy has become a standard method for structural research in molecular and solid state physics as well as for different branches of . Search Lab Chemicals by Category; . Some documentation and label information may refer to the legacy brand. NACRES: NA.23. Selenium (Se) was first identified as a toxic element for livestock in the 1930s , . 78.97g/mol. Molar mass of SeS2 = 143.09 g/mol. CAS Registry Number: 7446-34-6. What is the number of jelly beans in a mole of jelly beans called? Convert grams Selenium Dioxydifluoride to moles or moles Selenium Dioxydifluoride to grams. TWA 0.2 mg/m 3 [*Note: The REL also applies to other selenium compounds (as Se) except Selenium hexafluoride.] Track your food intake, exercise, sleep and meditation for free. Sodium Selenite. Danger; Hazard Category. H301-Toxic if swallowed . Molecular Weight: 78.96 Molecular Formula: Se Additional Metadata. DOT Emergency Guidelines; Protective Distance; GHS Classification; . Selenium dioxide | SeO2 or O2Se | CID 24007 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities . Seventy-five percent of the selenium was extracted after in vitro simulated gastrointestinal digestion and investigation of the selenium molecular fractions . National Center for Biotechnology Information. 3.67 103 3.67 10 3 B. Selenium: Its Molecular Biology and Role in Human Health 4th ed. Several novel selenium containing compounds were characterized in staple crops (wheat, rice and maize) grown on soils naturally rich in selenium. Number of Volumes. Insoluble. Abstract: Volume II/24 presents the spectroscopic data on diamagnetic and paramagnetic molecules as well as on molecular ions and radicals up to date considering the publications up to and partly including . Question . spectral properties of a 10,0000 molecular-weight selenium protein, biochemical and biophysical research communications 53: 1031 (1973). The volatile alkyl Se species were cryogenically trapped and identified by GC-MS and GC-ICP-MS. = 78.4) then, minimum molecular weight of peroxidase anhydrous enzymes is : Medium. The units used are grams per mole because the molecular weight is usually expressed as the mass of one mole out of a certain substance. . Se speciation by HPLC-ICP-MS demonstrated that the livers contained low molecular weight selenometabolites in addition to selenoproteins. Code 2811.2990. A sample of potato starch was ground in a ball mill to give a starch-like molecule of lower molecular weight. Formula: SSe. Our standard powder particle sizes average in the range of - 325 mesh, - 100 mesh, 10-50 microns and submicron (< 1 micron). Conceiving the overall characterization of the behavio The chemical symbol for selenium is Se, the atomic weight is 78.96 g/mol, and the vapor pressure is 1 mm Hg at 356 C. Abstract In this study, selenium speciation in low molecular weight (LMW) fraction of Se-enriched yeasts was investigated assuming the presence of selenoadenosylmethionine (AdoSeMet). $168.95. . National Institutes of Health. BUGBHKTXTAQXES-UHFFFAOYSA-N. By Bernhard Michalke - Hardcover SELENIUM (MOLECULAR AND INTEGRATIVE TOXICOLOGY) By Bernhard Michalke - Hardcover. Item Weight. The molecular weight calculator uses the molar mass of each element in the formula you specify to determine the molecular weight of the total compound. Selenium, molecular weight 78.96, resembles sulfur in many of its chemical properties and occurs in inorganic forms as H2Se, H2Se2O3, H2SeO3, and H2SeO4 which are the analogues of hydrogen sulfide, thiosulfate, sulfite, and sulfate, respectively [11]. EC Number: 231-957-4. A fit for purpose analytical protocol was designed towards searching for low molecular weight seleno-compounds in sprouts. Powders are also useful in any application where high surface areas are desired such as water treatment and in fuel cell and solar applications. Selenium sulfide | SSe | CID 24011 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Two of the selenometabolites existed in relatively small amounts and were identified as selenosugar ( 1-methylseleno- N -acetyl- D -galactosamine ) and trimethylselenonium ( TMSe ) based on their . uses: used as insecticide in horticulture for the control of mites, aphids, and mealybugs. NA. Selenium Group: Alternative Energy. wt. Chemicals. National Center for Biotechnology Information. whanger, p.d., federation proceedings 31: 691 . google scholar. Sodium selenite usually is prepared by the reaction of selenium dioxide with sodium hydroxide: [1] SeO 2 + 2 NaOH Na 2 SeO 3 + H 2 O. Complementary use of molecular and element-specific mass spectrometry for identification of selenium compounds related to human selenium metabolism. 2.7 104 2.7 10 4 C. 2.90 107 2.90 10 7 D. 2.9 104 2.9 10 4 class-12 some-basic-concepts-of-chemistry 1 Answer 0 votes description. 79.0. Health and Other Scientific Information. For more information about the substance, you may click one of the links below to take you to the relevant section: . National Institutes of Health. Selenium nanoparticles, nanodots or nanopowder are typically 10 - 45 nanometers (nm) with specific surface area (SSA) in the 30 - 50 m 2 /g range and also available with an average particle size of 75 - 100 nm range with a specific surface area of approximately 2 - 10 m 2 /g. PubChem . Specific Gravity. Selenium Suppliers USA. Convert between Se weight and moles Elemental composition of Se Sample reactions for Se Formula in Hill system is Se 4.39 g/cu cm (alpha form); 4.809 g/cu cm (gray selenium); 4.28 g/cu cm (vitreous selenium) CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008 In this study, we show that the proteolytic cleavage of a GST- huntingtin fusion protein leads . Recommended videos Powered by AnyClip 4. National Library of Medicine. Molecular Weight = 78.96 gm Selenium 100.00 % Se _____ 100.00 % : Empirical Formula: Se : Environment: Low temperature due to sublimation of fumarolic vapors. Selenium nano-particle induced alterations in expression patterns of heat shock factor A4A (HSFA4A), and high molecular weight glutenin subunit 1Bx (Glu-1Bx) and enhanced nitrate reductase activity. Solubility(color): Colorless to Very Faint Yellow. Alfa Chemistry offers Selenium for experimental / research use. Copy Sheet of paper on top of another sheet. Selenium sulfide has the molecular formula SeS 2 and has a molecular weight of 143.09. PubChem Substance ID: 24853754. Se granules, (Se) granules. yeast used in selenium supplements is also selenomethi-onine combined with protein10. Boiling Point. Seleniprive regions (<0.1 mg kg 1) are localized in China, Finland, New Zealand, South-East of USA, and the UK. The higher initial capacity of Se 2-3 @MMCFs than that of the Se 2-3 /Se 4-7 @MMCFs may be attributed to the differency in the selenium utilization resulted from the Se loading. Acute toxicity Category 3; LONG-TERM AQUATIC HAZARD Chronic 4; Specific target organ toxicity after repeated exposure Category 2; Hazard Statement. Molecular weight = ( (Atomic Mass of Element) n x (# of atoms of that element) n) [6] Round the answer as necessary, using significant digits. Many studies demonstrated that Se supplementation can increase the level of enzymes such as GPx etc., prevent the accumulation of free radical species, and reduce the cellular damage [ 1 - 4 ]. Selenium shot, amorphous, 2-6mm (0.08-0.2in), Puratronic, 99.999% (metals basis), Thermo Scientific Print Selenium shot, amorphous, 2-6mm (0.08-0.2in), Puratronic, 99.999% (metals basis), Thermo Scientific $134.60 - $1,299.74 Chemical Identifiers View More Specs Products 3 Description Specifications Safety and Handling Description Molecular Weight. In other studies, we have evidence that Se accumulates in turkeys fed 5 g Se/g as a selenosugar linked to low molecular weight thiols as well as general body proteins . R-Rz. Selenium concentration in biofortified mushrooms was 800 times higher compared with control samples grown on wheat straw from non selenium-rich areas (141 vs 0.17 g Se g(-1) dry weight). (DB) showed higher GPx-like activities than the . Additional Product Features. 1 grams Selenium is equal to 0.012664640324215 mole. PubChem . Chem . Guidance for Developing Ecological Soil Screening Levels (Eco-SSLs) Eco-SSLs for copper and silver were released in 2006. Solubility. Pretreatment of guava fruits with 0.02 ppm of selenium resulted in significantly delayed decline in physiological loss in weight (30.44%), titratable acidity (7.90%) and retained the fruit . Molecular Formula; Molecular Weight; Other Properties; Solubilities; Vapor Pressure; Viscosity; Hazmat. Molecular Formula. According to X-ray crystallography, both anhydrous Na 2 SeO 3 and its pentahydrate feature pyramidal SeO 32. The minimum molecular weight of the enzyme is (1) 1000 (2) 2000 (3) 4000 (4) 800. Both compounds have been . CONTAINS: Selenium sulfide 2.5%; bentonite, citric acid, cocoamphocarboxyglycinate, ethylene glycol monostearate, fragrance, glycerol monoricinoleate, lauramide DEA, sodium lauryl sulfate, sodium phosphate (monobasic), titanium dioxide, and water . Formula: Se; Molecular weight: 78.96; IUPAC Standard InChI: InChI=1S/Se Copy. was 0.4 mg selenium/kg body weight for sodium selenate and for sodium selenite. Selenium Abstract Using a flow-through photochemical reactor and a low pressure mercury lamp as a UV source, alkyl selenium species are formed from inorganic selenium (IV) in the presence of low molecular weight organic acids (LMW acids). PubChem . 1.09 x 10^24. gray. 0 mmHg (approx) Ionization Potential. Selenium compounds: E650044: Metals Metals: E17001751: Metals Metals: E17001751: Top of Page. 2016 Edition by Dolph L. Hatfield (Editor), Ulrich Schweizer (Editor), Petra A. Tsuji (Editor), 1 rating Kindle $44.40 - $60.90 Read with Our Free App Hardcover $96.09 - $105.34 3 Used from $96.09 10 New from $105.34 Paperback $49.95 - $60.97 3 Used from $49.95 10 New from $60.97 Visit ChemicalBook To find more SELENIUM AMINO ACID CHELATE() information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. (1) The chemical formula for hydrogen selenide is H 2 Se, the molecular weight is 80.98 g/mol, and the vapor Conversion Factors: Beakers 1 and 2 contain the same number of atoms because there is one mole in each. It is insolu-ble in water or ether and soluble in carbon disulfide. Selenium(6+) | Se+6 | CID 104869 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Selenium/Tellurium-Containing Hyperbranched Polymers: Effect of Molecular Weight and Degree of Branching on Glutathione Peroxidase-Like Activity. Cas No. Avogadro's number. Solve Study Textbooks Guides. Molecular Weight: 78.96. Sodium selenate and sodium selenite are used as supplements to poultry and livestock feed to promote growth and prevent selenium deficiency diseases. The following list . IUPAC Standard InChIKey: VIDTVPHHDGRGAF-UHFFFAOYSA-N. Selenium was a component in the Dulbeccos Modified Eagle Medium, used for the cell culture of alpha mouse liver (AML)-12 hepatocyte cell line. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. Beaker 2 because it contains more moles of selenium atoms than the number of moles of phosphorus atoms in Beaker 1. Selenium, molecular weight 78.96, resembles sulfur in many of its chemical properties and occurs in inorganic forms as H2Se, H2Se2O3, H2SeO3, and H2SeO4 which are the analogues of hydrogen sulfide, thiosulfate, sulfite, and sulfate, respectively. H2Se;Se. Selenium molecular weight Molar mass of Se = 78.96 g/mol Convert grams Selenium to moles or moles Selenium to grams Percent composition by element Calculate the molecular weight of a chemical compound Enter a chemical formula: Browse the list of common chemical compounds. Vapor Pressure. All aspects of selenium biology have advanced with many new approaches and insights into the biochemical, molecular, genetic, and health areas of this intriguing element. H413-May cause long lasting harmful effects to aquatic life. Oxygen, Selenium: Molecular Weight: 94.959 g / mol: Name(s): selenium monoxide: CAS-RN: 14832-90-7: Classification: no charge; 1fragment . Advanced Search. H373-May cause damage to organs. Selenium; Signal Word. SELENIUM DIOXIDE (SUBLIMED), 7446-08-4, Metallic Salts (Metal Salts), SeO2 by Loba Chemie, India. View solution. Joice Thomas, Molecular Design and Synthesis, Department of Chemistry, University of Leuven, Celestijnenlaan, 200F, 3001 Leuven (Heverlee), Belgium . Copy Sheet of paper on top of another sheet. Shelf Life 60 Months. closed Dec 14, 2021 A peroxidase enzyme isolated from red blood cells was found to contain 0.28% selenium. In recent years, a low-molecular-weight selenium com-pound called selenoneine has also been identified in tuna blood, organs, and dark muscle 16. SMILES [Se] InChI. A. Selenium, 99+%, powder, Thermo Scientific $128.28 - $128.28 Chemical Identifiers View More Specs Products 1 Description Specifications Safety and Handling Description This Thermo Scientific brand product was originally part of the Acros Organics product portfolio. It has been shown that the low molecular weight compounds b and c, which are characterized by pronounced antibacterial activity against both S. aureus and E. coli, and their antibacterial activity is comparable to that of the antibiotics ampicillin and gentamicin. Selenium monosulfide. Selenium sulfide is a selenium salt that exists as a yellow-orange to bright-orange tablet or powder at room temperature. H.S. Molecular Weight: 188.95. However, few studies The Se loading in the Se 2-3 @MMCFs is 37.5 wt%, much lower than that of the Se 2-3 /Se 4-7 @MMCFs (49.4 wt%). This study investigated the accumulation of selenium (Se) in protein fractions of albumin, globulin, prolamin and glutelin extracted from Se-enriched brown rice and the molecular weight distribution of Se-containing proteins. 4.28. IMA Status: Valid Species (Pre-IMA) 1828 : Locality: Grants District . 15.999 2 = 31.998 a m u {\displaystyle 15.999*2=31.998amu} . Be the first to write a review. List of Selenium Compounds, Common Compounds of Selenium Se, Formula, Molecular Weight. Sodium Selenite (various % of selenium) 800/ Kilogram Get Latest Price . Quality Level. selenium. H331-Toxic if inhaled. It should also be noted that the highly substituted selenium-containing chitosan . Based Join / Login. InChI=1S/Se. Molecular weight of Sodium Selenite Metric System Molecular Weight Sodium Selenite molecular weight Molar mass of Na2SeO3 = 172.93774 g/mol Convert grams Sodium Selenite to moles or moles Sodium Selenite to grams Molecular weight calculation: 22.98977*2 + 78.96 + 15.9994*3 Percent composition by element Oxidation-reduction of selenium-bearing solutions in sandstone U and U-V deposits. Molecular Weight 110.96. Note that rounding errors may occur, so always check the results. View information & documentation regarding Selenium, including CAS, structure & more. Selenium sul-fide has a molecular weight of 111.0 and a specific gravity of 3.056 at 0 C (HSDB 2009). You can also browse global suppliers,vendor,prices,Price,manufacturers of SELENIUM AMINO ACID CHELATE(). Use this link for bookmarking this . National Library of Medicine. Selenium is a chemical element with the symbol Se and atomic number 34. 1265F. Molecular Weight: 165.865 g / mol: Name(s): Selenium dichloride oxide Selenyl dichloride Selenium oxychloride Seleninyl dichloride Seleninyl chloride Selenoxichlorid . Ladleadd. 2.73 X 101 g. What is the mass of 1 mol of chromium (atomic mass 51.996 u)? The selenium field has grown dramatically in the years since the first edition of Selenium: Its Molecular Biology and Role in Human Health was published in 2001. Properties. 1 Vol. Free unique selenoamino acids were found in selenium-enriched plant materials 11-15 . Add up the mass of all the atoms to find the molecular weight. Convert grams Selenium Disulfide to moles or moles Selenium Disulfide to grams. The SI base unit for amount of substance is the mole. The hydrate converts to the anhydrous salt upon heating to 40 C. OSHA PEL . General Selenium Information : . Molecular weight calculation: 78.96 + 32.065*2. MDL number: MFCD00134090. Convert 2.49 x 1023 molecules AgCH3COO (molecular weight 167 g/mol) to grams. flohe, l, glutathione peroxidase .1. purification and estimation of molecular weight, hoppe-seylers zeitschrift fur physiologische chemie 352 . . MSDS. Chemical structure: Selenium, molecular weight 78.96, resembles sulfur in many of its chemical properties and occurs in inorganic forms as H2Se, H2Se2O3, H2SeO3, and H2SeO4 which are the analogues of hydrogen sulfide . Free shipping. Molecular weight calculation: 78.96 + 15.9994*2 + 18.9984032*2. . 51.996 g. How many atoms of calcium are present in 72.4 g of calcium? Molecular weight of Selenium Dioxide Salary Calculator Selenium Dioxide molecular weight Molar mass of SeO2 = 110.9588 g/mol Convert grams Selenium Dioxide to moles or moles Selenium Dioxide to grams Molecular weight calculation: 78.96 + 15.9994*2 Percent composition by element Calculate the molecular weight of a chemical compound Molar mass of SeO2F2 = 148.9556064 g/mol. Molecular weight: 111.02. IUPAC Standard InChI: InChI=1S/SSe/c1-2. Comparing a selenium accumulator plant (Brassica juncea) to a nonaccumulator plant (Helianthus annuus) to investigate selenium-containing proteins. Results showed that the A peroxidase enzyme contains 2% selenium (Se=80). Seleniferous regions with up to 1200 mg kg 1 have been mapped in the USA, Canada, Colombia, the UK, China, Russia, and India (Fordyce 2007 ). The product analysed was 0.086 % phosphorus . Use this page to learn how to convert between grams Selenium and mole. IUPAC Standard InChIKey: BUGBHKTXTAQXES-UHFFFAOYSA-N Copy; CAS Registry Number: 7782-49-2; Chemical structure: This structure is also available as a 2d Mol file; Other names: Selenium atom Permanent link for this species. Selenium (Se) is involved in the antioxidant defense systems of the liver and plays an important role in protecting against oxidative stress. Melting Point. National Institutes of Health. Molecular Weight. Mass of selenium = 78.96 u). National Center for Biotechnology Information. Molar Mass, Molecular Weight and Elemental Composition Calculator Molar mass of selenium is 78.9600 g/mol Compound name is selenium Get control of 2022! In 2007, numerical soil EcoSSL concentrations were issued for DDT and metabolites, manganese, nickel, low and high molecular weight PAHs, selenium and zinc. At last,SELENIUM AMINO ACID CHELATE() safety, risk . ENDMEMO. Use Convert 38.2 grams Pb (NO3)2 (molecular weight 331 g/mol) to molecules. The pathway for formation of the selenosugar or a homologous sulfur-sugar has not been . The minimum molecular mass of the enzyme is (at. (1) Hydrogen selenide is a selenium compound that exists as a colorless gas at room temperature. L-SelenoMethionine is a major natural food-form of selenium.TargetThe median lethal dose (LD50) of L-SelenoMethionine in rats given an intraperitoneal injection was determined to 4.25 mg Se/kg body and thus is comparable to that of selenite or selenate. 188.94 172.95. Weight 253 g/mol ) to molecules ; molecular weight convert between grams selenium Disulfide to grams > hepatic. 2.49 x 1023 molecules AgCH3COO ( molecular weight 167 g/mol ) to grams federation proceedings 31 691 In vitro simulated gastrointestinal digestion and investigation of the selenosugar or a homologous has. Soil copper, dieldrin and pentachlorophenol soil 2 ) 2000 ( 3 ) 4000 ( 4 ) 800 use molecular.: 78.96 + 15.9994 * 2: //www.ebay.com/p/21038826253 '' > DailyMed - selenium SULFIDE lotion /a. - AMERICAN chemical suppliers < /a > molecular and element-specific mass spectrometry for of Alfa Chemistry offers selenium for experimental / research use mass spectrometry for identification of selenium speciation selenium for experimental research 32.065 * 2 documentation regarding selenium, including CAS, structure & amp ; documentation regarding selenium, CAS Selenium metabolism Pre-IMA ) 1828: Locality: Grants District sodium selenate and sodium selenite information. Element-Specific mass spectrometry for identification of selenium selenium molecular weight: E650044: Metals Metals::. Simulated gastrointestinal digestion and investigation of the turkey poult ( Meleagris gallopavo ) is /a More information about the substance, you may click one of the links below to you! 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