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硒块

产品编号 S140801 | CAS号 7782-49-2 | Aladdin
Selenium
≥99.999% metals basis
组合的产品项目
货号 规格 库存 价格 数量
S140801-25g ≥99.999% metals basis 上海(>10)
北方(预计3-5个工作日)
 
S140801-100g ≥99.999% metals basis 上海(>10)
北方(预计3-5个工作日)
 
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属性

敏感性 对湿度敏感
密度 4.9200
熔点 217℃
沸点 685℃
溶解性 Soluble in diethyl ether, and chloroform. Insoluble in water, ethanol, and carbon disulfide.
存贮条件 充氩保存

描述

产品介绍 硬而脆,其中以六方透明结晶为稳定。在空气中燃烧发出亮蓝色火焰而成二氧化硒。不溶于水、醇,能溶于二硫化碳、浓硫酸、硝酸、氢氧化碱或硫化碱溶液,不溶于水和醇。
别名 硒粉/高纯硒 ;精料精,硒;Selenium powder
应用 凯氏定氮用催化剂,无机合成脱氢剂。工业上用于制半导体材料、光度计、光电管及其他光学仪器、整流器、硒感光板、复印硒鼓、合金、搪瓷和玻璃等用。
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标识符号 GHS06 GHS06, GHS08 GHS08
信号词 Danger
风险声明 (欧洲) R23/25;R33;R53
安全声明(欧洲) S20/21;S28;S45;S61
警示性声明 P261,P301+P310,P311
危害码(欧洲) T
危害声明 H301+H331,H373,H413
WGK德国 2
是否危化品 一般危险品
参考文献
Lv-Hui Sun, Jun-Gang Li, Hua Zhao, Jing Shi, Jia-Qiang Huang, Kang-Ning Wang, Xin-Jie Xia, Li Li, Xin Gen Lei
Our objectives were to determine if porcine serum could be enriched with selenium (Se) by feeding pigs with high concentrations of dietary Se and if the Se-biofortified serum inhibited proliferation o...Read More
Sachie K Ogawa, Min-Chul Shin, Masaki Hirashima, Norio Akaike, Yushi Ito
Selenoprotein P (SeP) not only represents the major selenoprotein in plasma, but also provides more than 50% of the total plasma selenium. However, there is no report concerning the direct action of s...Read More
Uwe Gr?ber, Ralph Mücke, Peter Holzhauer, Klaus Kisters
Many patients receiving cancer treatment use micronutrient supplements, with the intention to complement their cancer treatment, or help them cope with the therapy- and disease-associated side-effects...Read More
A O Oluboyo, R U Adijeh, C C Onyenekwe, B O Oluboyo, T C Mbaeri, C N Odiegwu, G O Chukwuma, U F Onwuasoanya
In the recent years, male infertility and sub-fertility have increased, which is attributable to many factors. Some trace elements such as zinc and selenium have been shown to play a role in reproduct...Read More
Chih-Hung Guo, Pei-Chung Chen, Guoo-Shyng W Hsu, Chia-Liang Wang
End stage renal disease patients undergoing long-term dialysis are at risk for abnormal concentrations of certain essential and non-essential trace metals and high oxidative stress. We evaluated the e...Read More
Brian D Laird, Alexey B Goncharov, Grace M Egeland, Hing Man Chan
Elevated concentrations of mercury (Hg) are commonly found in the traditional foods, including fish and marine mammals, of Inuit living in Canada's Arctic. As a result, Inuit often have higher di...Read More
Gang Li, Luis Nunes, Yijie Wang, Paul N Williams, Maozhong Zheng, Qiufang Zhang, Yongguan Zhu
Element profile was investigated for their use to trace the geographical origin of rice (Oryza sativa L.) samples. The concentrations of 13 elements (calcium (Ca), potassium (K), magnesium (Mg), phosp...Read More
High prevalence of hyperplastic and autoimmune diseases of thyroid in Ukrainian population is determined by endemic deficit of iodine and selenium. The aim of this research was to assess the place of ...Read More
Z Zduńczyk, A Drazbo, J Jankowski, J Ju?kiewicz, A Czech, Z Antoszkiewicz
The effect of different dietary levels of selenium (Se) and vitamin E on egg production, the antioxidant status and the immune system response of hens was investigated in the current study. A total of...Read More
Gurdarshan S Sandhu, Kenneth G Nepple, Youssef S Tanagho, Gerald L Andriole
Prostate cancer is a leading cause of morbidity and mortality in men and has significant treatment-associated complications. Prostate cancer chemoprevention has the potential to decrease the morbidity...Read More
Fran?ois Eisinger, Géraldine Cancel-Tassin, Abdel Rahmene Azzouzi, Gwenaelle Gravis, Dominique Rossi, Olivier Cussenot
In 2010, in France, 8,790 men died from prostate cancer despite a low and decreasing mortality rate. The individual risk/benefit ratio of prostate cancer screening is the focus of controversy and curr...Read More
J Holinka, M Pilz, B Kubista, E Presterl, R Windhager
The aim of this study was to evaluate whether coating titanium discs with selenium in the form of sodium selenite decreased bacterial adhesion of Staphylococcus aureus and Staph. epidermidis and imped...Read More
Caroline R B Rocourt, Wen-Hsing Cheng
Selenium was considered a toxin until 1957, when this mineral was shown to be essential in the prevention of necrotic liver damage in rats. The hypothesis of selenium chemoprevention is principally fo...Read More
Waleed Alhazzani, Judith Jacobi, Anees Sindi, Christiane Hartog, Konrad Reinhart, Stelios Kokkoris, Herwig Gerlach, Peter Andrews, Tomas Drabek, William Manzanares, Deborah J Cook, Roman Z Jaeschke
Patients with sepsis syndrome commonly have low serum selenium levels. Several randomized controlled trials have examined the efficacy of selenium supplementation on mortality in patients with sepsis....Read More
Peter Edmondson
We're sorry this abstract is currently not available....Read More
Holly L Nicastro, Barbara K Dunn
The Selenium and Vitamin E Cancer Prevention Trial (SELECT) was conducted to assess the efficacy of selenium and vitamin E alone, and in combination, on the incidence of prostate cancer. This randomiz...Read More
Heidar N Farahani, Alireza R Ashthiani, Mher S Masihi
To estimate serum zinc and selenium levels in a group of healthy subjects and correlate these with epileptic patients.This case-control study was conducted in the Department of Neurology, Valiasr Hosp...Read More
Julia B Montgomery, Jeffrey J Wichtel, Maureen G Wichtel, Mary A McNiven, J T McClure, Fred Markham, David W Horohov
The effects of selenium (Se) supplementation and source on equine immune function have not been extensively studied. This study examined the effects of oral Se supplementation and Se source on aspects...Read More
John Steven Morris, Stacy B Crane
Use of dietary supplements in the U.S. has increased steadily over the last 25 years. While misformulation is uncommon, the consequences can be serious. A March 2008 voluntary market recall removed su...Read More
Bitna Park, Serku Kang, Wonjin Moon, Yul Roh
Nanobiotechnology represents an economic alternative for chemical and physical methods of nanoparticles formation. The objectives of this study were to synthesize selenium nanoparticles by microbial p...Read More
V I Akinmoladun, F J Owotade, A A Olusanya
There are pieces of evidence suggesting that oxidative stress and immune responses play significant roles in the etiopathogenesis of some malignant diseases. Also increased oxidative stress in patient...Read More
Allen D Smith, Lumei Cheung, Ethiopia Beshah, Terez Shea-Donohue, Joseph F Urban
Heligmosomoides bakeri is a nematode with parasitic development exclusively in the small intestine of infected mice that induces a potent STAT6-dependent Th2 immune response. We previously demonstrate...Read More
Joanna Slusarczyk, Eliza Malinowska, W Krzyczkowski, M Kura?
Mycelium of the white-rot fungus (Hericium erinaceum (Bull.: Fr. Pers.) produces polysaccharides showing anticancer and immunostimulating activity. In our previous works, we have shown that organic se...Read More
Yu-Chi Chen, K Sandeep Prabhu, Andrea M Mastro
Selenium (Se) is an essential micronutrient that functions as a redox gatekeeper through its incorporation into proteins to alleviate oxidative stress in cells. Although the epidemiological data are s...Read More
Darryl Sullivan, Richard Zywicki, Mark Yancey
An optimized method for use in a high volume laboratory was developed and validated for the determination of total selenium in a wide variety of food products including infant formula. The method util...Read More
Jadwiga Kryczyk, Pawe? Zagrodzki
The aim of this study was to present the current state of knowledge of the role of selenium in Graves' disease. Recently, in the pathogenesis and course of this autoimmune disease, more attention...Read More
Raymond F Burk
We're sorry this abstract is currently not available....Read More
Alexander de Oliveira El-Warrak, Mouhamed Rouma, Audrey Amoroso, Soren R Boysen, Younés Chorfi
This study compared vitamin A, vitamin E, selenium (Se), and L-lactate in blood and synovial fluid in 2 groups of 6 dogs; a control group (without OA) and an osteoarthritic group with spontaneous cran...Read More
Michael T Howard, Bradley A Carlson, Christine B Anderson, Dolph L Hatfield
Incorporation of selenium into ~25 mammalian selenoproteins occurs by translational recoding whereby in-frame UGA codons are redefined to encode the selenium containing amino acid, selenocysteine (S...Read More

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