$18.95 Buy It Now or Best Offer
free,30-Day Returns
Seller Store backyard-science-2000
(775) 99.2%,
Location: Salt Lick, Kentucky
Ships to: US,
Item: 335290699806
All returns accepted:ReturnsNotAccepted
Country/Region of Manufacture:United States
California Prop 65 Warning:N/A
Elemental Selenium 25g, 99.999%+, In Display Bottle, USA Shipping. Selenium is a chemical element with the symbol Se and atomic number 34. 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. It seldom occurs in its elemental state or as pure ore compounds in Earth’s crust. Selenium (from Ancient Greek (seln) ‘moon’) was discovered in 1817 by Jns Jacob Berzelius, who noted the similarity of the new element to the previously discovered tellurium (named for the Earth.) Selenium is found in metal sulfide ores, where it partially replaces the sulfur. Commercially, selenium is produced as a byproduct in the refining of these ores, most often during production. Minerals that are pure selenide or selenate compounds are known but rare. The chief commercial uses for selenium today are glassmaking and pigments. Selenium is a semiconductor and is used in photocells. Applications in electronics, once important, have been mostly replaced with silicon semiconductor devices. Selenium is still used in a few types of DC power surge protectors and one type of fluorescent quantum dot. Although trace amounts of selenium are necessary for cellular function in many animals, including humans, both elemental selenium and (especially) selenium salts are toxic in even small doses, causing selenosis. Selenium is listed as an ingredient in many multivitamins and other dietary supplements, as well as in infant formula, and is a component of the antioxidant enzymes glutathione peroxidase and thioredoxin reductase (which indirectly reduce certain oxidized molecules in animals and some plants) as well as in 3 deiodinase enzymes. Selenium requirements in plants differ by species, with some plants requiring relatively large amounts and others apparently not requiring any. Selenium forms several allotropes that interconvert with temperature changes, depending somewhat on the rate of temperature change. When prepared in chemical reactions, selenium is usually an amorphous, brick-red powder. When rapidly melted, it forms the black, vitreous form, usually sold commercially as beads. The structure of black selenium is irregular and complex and consists of polymeric rings with up to 1000 atoms per ring. Black Se is a brittle, lustrous solid that is slightly soluble in CS2 (Carbon Disulfide). Upon heating, it softens at 50 C and converts to gray selenium at 180 C; the transformation temperature is reduced by presence of halogens and amines. For use in your chemistry experiments. This will come in the form of chunks of pure selenium, unless you want it in the form of shot or beads. If you need it in shot or bead form, like in the last picture, let me know and I will send you that instead of broken chunks. The price is the same either way, you just have to let me know which form you want if you don’t want what’s pictured in the first picture. You will receive: 1 bottle containing 25g+ of Elemental Selenium and it will be in a bag and bubble wrapped and placed in the container like in the pictures. That will be taped shut and sealed with a tamper seal. That will then be bubble wrapped and placed in a box with the appropriate warning labels and taped shut. That will be placed in a blue, bubble wrap padded envelope for extra padding and shipped via USPS First Class Mail with tracking.
Frequently Asked Questions About Elemental Selenium 25g+, 99.999%+, In Display Bottle For Element Collections in My Website
xdvrdrones.com is the best online shopping platform where you can buy Elemental Selenium 25g+, 99.999%+, In Display Bottle For Element Collections from renowned brand(s). xdvrdrones.com delivers the most unique and largest selection of products from across the world especially from the US, UK and India at best prices and the fastest delivery time.
What are the best-selling Elemental Selenium 25g+, 99.999%+, In Display Bottle For Element Collections on xdvrdrones.com?
xdvrdrones.com helps you to shop online and delivers Moose Knuckles to your doorstep. The best-selling Moose Knuckles on xdvrdrones.com are: LA CHOPPERS LA-7303-07 Chrome 1-1/4″ Moose Knuckle Handlebars for 1″ Clamping Telfar Moose Knuckles Shopping Tote Quilted Nylon Large Black NWT MOOSE KNUCKLES STIRLING PARKA FOX FUR MILITARY DOWN COAT MK2003LP BLACK Used fbb LA CHOPPERS Chrome 1-1/4″ Moose Knuckle Handlebars 2015-24 Road Glide LA-7312-07 moose knuckle jacket men Size Medium mew Without Tags TREASURE X FIRE VS. ICE SNAPSAUR & KNUCKLE VINCE w/ARCTIC LOCK & GAUNTLET & MORE Womens Moose Knuckles Hooded Parka Coat Jacket size Large L NWT Ladies MOOSE KNUCKLES jacket sz. Medium hoodie Hooded Track zip long sleeve Moose Knuckles Ladies CLOUD IDI Parka Black Size S NWT Vintage 1990s Nissan Moose Knuckles Hockey Jersey Men’s Medium Made In Canada Moose Knuckles Synder Pullover Black/Gold Sweatshirt Moose Knuckles women lightweight quilted jacket size Small NWT M12LJ100 Moose Knuckles Ladies Cloud Parka Neoshear Black Siver Logo S NWT Gold-Tone Parka with Blue Fox Fur Ruff Moose knuckle BNIB Retail $124 iphone case 7plus/8plus MOOSE KNUCKLES LDS BOMBER KO FUR DOWN JACKET MK8676LBK BLACK S Used MESC-0 LA CHOPPERS Chrome 1-1/4″ Moose Knuckle Touring Handlebar for 15-22 Road Glide Moose Knuckle, New Twenty, Good $995 Moose Knuckles Women’s Black/Ivory Elmont Sherpa Puffer Jacket Coat Size L Moose Knuckles Mens GREYSTONE Down Jacket Black Size S NWT Moose Knuckles Women’s Milkyway White East Prairie Parka Coat Puffer Size Small NEW Moose knuckles women hooded navy blue jacket red cotton inside size L Men’s moose knuckles puffer coat size XXL Exhibition Puffer Jacket Moose Knuckles Womens Lightweight Quilted Jacket Moose Knuckles Men’s BALLISTIC Bomber Neoshear Black/Black Shearling XXL NWT Moose Knuckles Men’s Ballistic Bomber Jacket Deep Red Natural Fur size S MOOSE KNUCKLES Sherpa elmira puffer jacket Moose Knuckles Bell River Parka Jacket Mens Style : M31lp203gn MOOSE KNUCKLES Fox Fur Hooded Down Coat L Khaki Ladies Used KLDR-0 REAL Mouse Knuckles “Gold Stirling Down Parka Coat” size Small/Petite Woman Moose Knuckles B6151 Womens Granite Black Longue Rive Parka Size M MOOSE KNUCKLES CAP FREE COTTON GRN M33MA516 MOOSE KNUCKLES HAMBURG FLAG T-SHIRT BLACK *NEW* Moose Knuckles NWT Mens Brooklyn Hoodie 2 Small S Willow Grey Bandana Print New moose knuckles womens Moose Knuckles kids windy blue plaxton logo tee size xs approx size 7-8 $95 Moose Knuckles Mens REVERSIBLE BUNNY Bomber Black/Shiny Black Size M NWT Moose Knuckle Womens Jacket Size Medium M Moose Knuckles Coat / Size 46 / Mid-Length / Mens / MultiColoured / Cotton Moose Knuckles Round Island Down Jacket Men’s Medium Black With Frost Moose Knuckles Bonaventure Parka Jacket Grey Medium NWOT Authentic Mens Moose Knuckles Stirling Pocket Parka Coat Jacket size S Gray Moose Knuckles Navy Blue Flight-Weight Nostrand Parka | XL – Extra Large RRP£825 Mens Moose Knuckles Original Stirling Hooded Parka Coat Jacket M Red Black Fur Moose Knuckle Women’s Lejeune Navy/Black Bomber Jacket Size Medium Moose Knuckle silver jacket Kid’s Sz M preowned. Moose Knuckles Mens Cloud 3Q Jacket Black/Black Shearling Silver Logo XXL NWT Moose Knuckles Mens HIGH POINT Bomber Black Size M NWT Moose Knuckles Mens EVEREST 3Q Puffer Black Size L NWT Moose Knuckles Mens 3Q Jacket Neoshear Black/Black Shearling Size M NWT Moose Knuckles Ladies ROCKCLIFF Jacket Black Size S NWT Moose Knuckles Men’s Down Stirling Parka Shearling 2023 with Natural Fox Fur Moose Knuckles NWT Allister Vest L black hooded gillet gilet hoodie new $995 Moose Knuckles Women’s Black/Ivory Elmont Sherpa Puffer Jacket Coat Size M Moose Knuckles – ORIGINAL STIRLING PARKA FUR Moose Knuckles Valleyfield Men’s Jacket Mens Moose Knuckle Quilted Mockneck Zipped Jacket £110 AUTHENTIC MOOSE KNUCKLES WOMENS T-SHIRT SUMMER TOP WHITE TIE DYE XS 8 BNWT New Moose Knuckle Gatineau Fox Fur Boots. Size 10 Original Price $595.00 Moose Knuckles Mens WEST SHIRT Jacket Black Size S NWT $424 Moose Knuckles Women’s Black Ribbed Adelphi Sweat Pants Size M Moose Knuckles Women’s Jacket Granite w Black Natural Fur Size L Gift for Her Moose Knuckles Men’s Jacket Ballistic Bomber Deep Red Natural Fur size XL Moose Knuckles Jocada Parka 3 Moose Knuckles Big Ridge Parka Mens Style : M39mp210 Moose Knuckles Men’s Navy Down Vest Size Large Moose Knuckles Montreal Gilet Green Down Logo Vest Size M Moose knuckles Men Stirling Parka Granite Black color Size medium Moose Knuckles Valleyfield Gold Down Jacket Rem moose knuckles women Coat Moose Knuckles Men’s White Javelin Down Puffer Jacket Size Large Moose Knuckles Men’s Black Size M Puffer 125th Street Bomber Jacket Msrp $995 KIY Studios High “Moose Knuckle” Olive Edition Moose Knuckles Women Xl Black Fur Pom Poms With Carry On Dust Bags & Nfc Tags MOOSE KNUCKLES RED ROOSTER ZIP UP FLEECE JACKET M32MS659 155 IVORY size M Telfar X Moose Knuckles Black Bag New With Tags Jacket Women’s Size Medium Puffer Blue With Black Trim $290+ Tax Moose Knuckles – Women ORIGINAL 3Q FUR Moose Knuckles Parka SZ large NWT Moose Knuckles Hazen Jogger Moose Knuckles West Gore Parka Canadian Army w/ Frost Fox Men 2XL Coat/Jacket Moose Knuckles Mens GREYSTONE Down Jacket Black Size M NWT Moose Knuckles Coat Jacket Mens Size Small Parka Bomber Jacket Black Cold Winter $2190 Moose Knuckles Women Pink Lamb Leather Logo Full-Zip Coat Jacket M Moose Knuckles boys orange cotton terry sweatshirt sizes 6, 8, 14-16 MOOSE KNUCKLE Rare Authentic Multicam Black Parka Large Winter Hooded Camo MOOSE KNUCKLES Women’s Quilted Moto Puffer Jacket Coat Long Sleeve Black Size S moose knuckles women Size Small Long Vest Come With Dust Bag And Original Hanger Moose Knuckles Men’s Pearson Parka Moose Knuckles Men’s BALLISTIC Bomber Neoshear Black/Black Shearling Size L NWT Moose Knuckles GOLD SERIES GRAND METIS PARKA Size L Moose Knuckles mens jacket Large. Great Condition!!! Moose Knuckles Mens KINGS SHINY DOWN Puffer Black Size M NWT Moose Knuckles Ladies ORIGINAL DEBBIE BOMBER Black/Natural Shearling Size XL NWT Moose Knuckles Stirling Parka 2 Jacket Mens Style : M31mp261n moose knuckles women jacket Authentic Womens Moose Knuckles Stirling Hooded Parka Coat Jacket size XS Grey moose knuckles mens jacket LA Choppers LA-7303-07B 1-1/4in. Knuckle Handlebar – Gloss Black 0601-3847 Moose Racing Rear Independent Suspension Knuckle Kit (Only) 0430-1140 Mens Pullover Fleece Hoodie