Selenium
Jons Jacob Berzelius is credited with the discovery of selenium in 1817.
Further Details:
Chemical Properties of Selenium ... Comprehensive data on the chemical element Selenium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Selenium. Common chemical compounds are also provided for many elements.
environmentalchemistry.com/yogi/periodic/Se.html environmentalchemistry.com/yogi/periodic/Se.html
chemical properties, health and environmental effects of selenium ... Chemical properties of selenium - Health effects of selenium - Environmental effects of selenium...
www.lenntech.com/periodic/elements/se.htm
Brief description: selenium can be prepared with either an amorphous or crystalline structure. Crystalline monoclinic selenium is deep red; crystalline hexagonal selenium, the most stable variety, is a metallic grey (see picture above). ... Element properties...
www.webelements.com/selenium/ www.webelements.com/selenium/
Get periodic table facts on the chemical and physical properties of the element selenium. ... Chemical & Physical Properties ... Properties: Selenium has an atomic radius of 117 pm, a melting point of 220.5°C, boiling point of 685°C, with oxidation states of 6, 4, and -2. Selenium is a member of the sulfur group of...
chemistry.about.com/od/elementfacts/a/selenium.htm chemistry.about.com/od/elementfacts/a/selenium.htm
These properties make selenium useful in the production of photocells and exposure meters for photographic use, as well as ... The most efficient process for soluble selenium appears to be anion exchange. Preoxidation of the selenite to selenate is reported to enhance exchange capacity. Chemical Treatability of Selenium;
www.speclab.com/elements/selenium.htm www.speclab.com/elements/selenium.htm
Data evaluation of physical and chemical properties of information being entered into a database should be an integral part of the database development process. ... (22) Bigwood, D. W.; Heller, S. R.; Wolf, W. R.; Schubert, A.; Holden, I. M. SELEX: An Expert System for Evaluating Published Data on Selenium in Food. Anal.
www.hellers.com/steve/resume/p114.html
Accounts of Chemical Research ... ACS Chemical Biology ... Chemical Research in Toxicology...
pubs.acs.org/doi/abs/10.1021/ja01372a002
DRAFT (PDF File)
Red amorphous selenium is colloidal and is formed in reduction reactions (Hoffmann and King 1997). Important selenium oxidation states are -2, 0, +4, and +6. The chemical properties of selenium are similar to sulfur.
www.atsdr.cdc.gov/toxprofiles/tp92-c4.pdf
These properties make selenium useful in the production of photo cells and exposure meters for photographic use, as well as solar cells. Selenium is also able to convert ac electricity to dc ... The physical and chemical properties of selenium are listed in Table 1.4. ... Table 1.4; Physical and Chemical Properties of Selenium...
www.osha.gov/dts/sltc/methods/partial/t-id133sg-pv-01-0... www.osha.gov/dts/sltc/methods/partial/t-id133sg-pv-01-0205-m/t-id133sg-pv-01-0205-m.html