Antimony

YOUR LINK HERE:

http://youtube.com/watch?v=SYVdas1KpBI

Antimony Sb 51 • Atomic Mass: 121.76 • State: Solid • Discovery: Around 1600 BCE • Antimony gets its name from the Greek word anti-monos, meaning “not alone”. • This may refer to the fact that the element is never found pure in nature, but is always found combined with heavier metals, such as lead. • The element’s symbol, Sb, comes from stibium, the Latin word for kohl, a form of eye make-up. • Stibnite: This mineral tarnishes on contact with air. The mineral ore stibnite is the largest source of pure antimony. • Jamesonite: These needles like crystals contain antimony, lead, and iron. • Pure antimony crystals refined in a laboratory: This silvery semi-metal is hard but brittle. • Printing press metal type: These metallic letters are used by some printing presses, and are made of an antimony-tin alloy. • Egyptian kohl: Kohl is a dark eyeshadow. It was made from powdered stibnite. • EYE COSMETIC: Antimony-containing stibnite, known as kohl, was used in ancient times as eyeliner and mascara. • FIRE RETARDANT: Antimony trioxide is used as an additive in flame retardants for items such as children’s clothing and toys. • BULLETS: Antimony is alloyed with lead to harden it. It’s used for this in lead-acid batteries and in bullets. • #antimony #group15 #nitrogengroup #pnictogen #nitrogenfamily #pblock #nonmetals #metalloids #metals #chemicalelements #elements #periodictable #allinfobits #atom

#############################

New on site