Tuesday, 12 April 2011

Chromium 6-Dockstader-Ierullo

Chromium 6






What is Chromium 6?

Chromium 6 is a natural metal found in rocks, animals, plants, and soil. It can be carcinogenic (a substance that can cause cancer.) in certain amounts. It is also known as Hexavalent Chromium. Often times it ends up in town's drinking water, due to leaking through the ground.
http://abcnews.go.com/Health/video/chromium-found-us-cities-tap-water-12443997


What is the Chemical Formula?

Chemical Formula: Cr(VI)


What is it used for?

Chromium 6 is used for making paints, inks, dyes, paper, steel, and plastic. It is also used in the production of alloys. Chromium 6 is also used for chrome plating, which allows for some of Chromium 6's properties to be transferred to other objects, usually for its durability properties.

What can it cause?

Chromium 6 can cause many negative effects. If it gets on skin for a period of time, it will cause irritation on the spot. It can cause nosebleeds but more seriously asthma if inhaled. If consumed it can cause kidney and liver damage, as it has no means of exiting the organs once it is consumed. If it comes into contact with teeth, it can degrade the enamel protecting your teeth. Chromium 6 is also a known cause of cancer, most often lung cancer, but can also result in stomach cancer, throat cancer, and uterine cancer if ingested.

Treatment?

While chromium 6 is dangerous, it can be treated once it is ingested. If it gets into water, adding iron sulphate to the water will change it into Chromium 3, which is safe and actually healthy for humans to ingest. Activated carbon can remove 99 percent of chromium 6 in solutions. A certain microorganism can actually decompose Chromium shavings.


Opinion

Our opinion is that Chromium 6 is very dangerous, and as such, water companies should use extra precautions to avoid it ending up in their water systems. This could be done by treating the water with iron sulphate as mentioned before, or better protecting the water system so chromium 6 never has a chance to come in contact with it. We think it should stay in other products, as those products are not usually ingested or heavily inhaled.


Video on Chromium 6

http://www.youtube.com/watch?v=SnJJtxPhZw8

http://www.youtube.com/watch?v=Tn9aQ0PJQ2E



Articles about Dangers of Chromium 6

http://asheham.wordpress.com/2010/12/21/more-on-dangers-of-chromium-6/

http://abcnews.go.com/Health/WellnessNews/scientists-call-report-chromium-drinking-water-alarmist/story?id=12440751

http://www.globalhealingcenter.com/dangers-of-chromium-hexavalent.html

http://deathcr6.blogspot.com/2005/10/dangers-of-chromium-6.html

PROPERTIES

Physical:



  • Lustrous



  • Brittle



  • Hard



  • Silver-grey colour



  • Odourless



  • Tasteless



  • Solid



  • Crystals



Chemical:



  • Reacts violently with acid



  • Non-Flammable



  • Polymerization will not happen




Chromium 6 found in US tap water






REFERENCES




REFERENCESLenntech, . (2009). Chromium (cr). Retrieved from http://www.lenntech.com/periodic/elements/cr.htm




EPA, . . Basic information about chromium in drinking water. Retrieved from http://water.epa.gov/drink/contaminants/basicinformation/chromium.cfm



Environmental Chemistry, . (2007, February 22). Element chromium - cr. Retrieved from http://environmentalchemistry.com/yogi/periodic/Cr.html

21 comments:

  1. This comment has been removed by the author.

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  2. shelley- i like how you made certain words different colours, you can really see this took alot of effort to complete

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  3. Is it more harmfull four young children or adults ?
    -B

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  4. what type of cancer does this cause? really good job,very colourful and a great layout :)-dani

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  5. great job guys, nice colours, good layout (: but its found in animals? - alyssa

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  6. good job guys it looks very neat and organized ;) I like how it's easy to read too -victoria r

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  7. I like the picture of Ang's sink, and nice colors and info.

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  8. I thought it was really well done and I enjoyed the variety of colours, though because of the severity of this issue why aren't people limiting there supplies to it? And how could you possibly erase it from our eco-system?
    -Michelle

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  9. i really liked the colouuurs! it looks like you guys put forth a lot of effort:)
    but, if it is breatheed in, does it still have the same effects as when it is ingested?

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  10. I like how you used all different colours in your print!! Pictures are very intresting! Little more information, Other than that very organized!!

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  11. It is organized very well.

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  12. carly mccann :)- i love how straight forward it is organized. easy to see what each paragraph is explaining and the highlighted words make it really easy to see the important parts of the information! picture is really gross!

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  13. Taylor L:If it is digested, and has to be taken care of and causes cancer, how come it doesn't harm the plants and animals?

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