Jump to content



Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

Vertical Tank Selection

New Blog Entry

Low Flow in Pipes- posted in Ankur's blog

Tungsten Just Used For Light Bulbs?

tungsten tungsten hexacarbonyl

This topic has been archived. This means that you cannot reply to this topic.
4 replies to this topic
Share this topic:
| More

#1 Guest_ivanyang_*

Guest_ivanyang_*
  • guestGuests

Posted 13 July 2012 - 02:25 AM

Tungsten is a metallic chemical element classified among the transition metals of the periodic table of elements. In continental Europe, the chemical is often referred to by the alternative name of wolfram. That's why its chemical symbol is W and not T or Tu. It has the highest melting point and lowest vapor pressure of all metals. It also has excellent corrosion resistance and is not attacked easily by most mineral acids, so it is used a lot for glass-to-metal seals.

When we think of its uses, the light bulb may cone to mind first. How about its other potential applications?

By the way, my boss asked me to write an article less than 400 words about tungsten hexacarbonyl, but I don't have any ideas about it. Anyone could help me?What aspects should I write? :(

#2 kkala

kkala

    Gold Member

  • Banned
  • PipPipPipPipPip
  • 1,939 posts

Posted 13 July 2012 - 04:06 PM

It is interesting to read the story of incandescent light bulbs in http://en.wikipedia....wiki/Light_bulb '> http://en.wikipedia....wiki/Light_bulb , and the increased efficiency (lumen/watt) of the new ones. Even halogen bulbs have tungsten filament, "evaporated" at a lower rate.
http://en.wikipedia....en_hexacarbonyl '> http://en.wikipedia....en_hexacarbonyl , http://www.sigmaaldr...ng=en&region=GR '> http://www.sigmaaldr...ng=en&region=GR , http://www.sciencedi...040609000009433 '> http://www.sciencedi...040609000009433 , other data from web search engines, can give you material for W(CO)6. Industrial preparation and mainly uses would be the matter I would point out.

#3 Guest_ivanyang_*

Guest_ivanyang_*
  • guestGuests

Posted 18 July 2012 - 04:50 AM

Oh thanks ChE Plus Subscriber,thanks for the information you provided and your helpful suggestions. :D

#4 Technical Bard

Technical Bard

    Gold Member

  • ChE Plus Subscriber
  • 382 posts

Posted 28 July 2012 - 03:08 PM

Tungsten is used significantly in spacecraft and satellites, due to the low vapour pressure at elevated temperature - in space the pressure is very low and temperatures due to radiation can be very high. use of other metals results in severe metal loss as the material sublimes into space.

Tungsten is also used in some alloys.

#5 Shivshankar

Shivshankar

    Gold Member

  • Members
  • 257 posts

Posted 29 July 2012 - 04:39 AM

Hi ,


Hope this helps

http://wanttoknowit....es-of-tungsten/
http://www.tungsten....sable Metal.pdf
http://www.itia.info...ter_2011_06.pdf
http://nautilus.fis....lem/e07430.html
http://www.azom.com/...?ArticleID=1201
http://www.chemicool...s/tungsten.html
http://www.azom.com/...?ArticleID=1262
http://www.tungstenc...oducts-631.html
http://www.adexmining.com/tungsten.php
http://www.hcrosscom...ry/tungsten.htm
https://s3.amazonaws...nt/ch04s04.html
http://www.kingislan...index.php?id=12
http://www.itia.info...plications.html
http://www.thefabric...r-aluminum-gtaw
http://www.itia.info...ter_12_2010.pdf
http://www.lookchem....Table/Tungsten/
http://www.goodecarb...com/news/48.htm
http://www.chinatung...f-Tungsten.html
http://minerals.usgs...sten/680400.pdf
http://tungsten-wolf...f-tungsten.html
http://www.elmettech...ducts/Tungsten/


Regards
Shivshankar




Similar Topics