Chem Trail Resistence
Would you like to react to this message? Create an account in a few clicks or log in to continue.

Chem Trail Resistence

This site is here to discuss the practices of unethical spraying of Chem Trails by world governements. Also to discover ways to peacefully resist these government forces that utilize Chem Trails as a common practice.
 
HomeLatest imagesSearchRegisterLog in

 

 Characteristics and uses of rhenium

Go down 
AuthorMessage
tianya




Posts : 62
Join date : 2010-11-02

Characteristics and uses of rhenium Empty
PostSubject: Characteristics and uses of rhenium   Characteristics and uses of rhenium I_icon_minitimeTue Jan 04, 2011 11:19 pm


Rhenium is a rare, silvery-white, lustrous, dense metal. It resists corrosion and oxidation but slowly tarnishes in moist air. Of the elements, only carbon and tungsten have higher melting points and only iridium, osmium, and platinum are more dense. Rhenium is one of the five major refractory metals (metals with very high resistance to heat and wear). The other refactory metals are tungsten, molybdenum, tantalum and niobium. Rhenium compounds include oxides, halides and sulfides.
Rhenium is used with platinum as catalysts in the production of lead-free, high-octane gasoline. The metal is used in alloys for jet engines and in tungsten and molybdenum based alloys. It is widely used as filaments for mass spectrographs. Rhenium is also used as an electrical contact material. Rhenium catalysts are exceptionally resistant to poisoning from nitrogen, sulfur and phosphorous and are useful in the hydrogenation of fine chemicals.

Back to top Go down
 
Characteristics and uses of rhenium
Back to top 
Page 1 of 1
 Similar topics
-
» The characteristics of germanium
» Characteristics and uses of Strontium
»  Characteristics of iodine

Permissions in this forum:You cannot reply to topics in this forum
Chem Trail Resistence :: Your first category :: Your first forum-
Jump to: