Thursday, 7 April 2011

Talc-Dyck/Thoonen



















  • Talc Chemical Properties: Talc is a natural mineral . As shown, its elementary sheet is composed of a layer of magnesium-oxygen/hydroxyl octahedra, inbetween two layers of tetrahedral silica. The main surfaces, known as basal surfaces, contain neither hydroxyl groups nor active ions, making talc both hydrophobic and inert. http://www.anandtalc.com/wht_talc.htm


  • Talc's Description:

Talc is a mineral. Its the softest mineral known to man. It can be scratched easily with the fingernail. It is made of tiny flakes, or scales, of magnesium. Talc can be silvery white or a delicate green. http://www.blurtit.com/q751315.html








  • chemical Formula:

H2Mg3(SiO3)4 Or Mg3Si4O10(OH)2


http://webmineral.com/data/Talc.shtml











Where is Talc found?



  • Paper-used as a filler, used the same way as china clay.





  • Textiles-used for loading and bleaching certain types of cotton goods




  • Cosmetics-body and face powder.




  • Rubber-used for two reasons. One to prevent rubber moulds from sticking and compounding material in the preparation of certain types of hard rubber.




  • Ceramics-increasingly being used in the artwares, jars, wall, and floor tiles.




  • Paints-used as a paint and a extender in paint industry. http://www.mineralszone.com/minerals/talc.html




  • Dangers In Talc:
Many people use talc after bathing or to soothe irritated or inflamed skin. What most people don't know is that there is an inextricable link between talc and asbestos, which virtually everyone knows is a cancer causing agent. In fact, the two are virtually chemically identical.http://www.natural-health-information-centre.com/talc.html. chalk, some soaps, and deodorants all have talc in them. Even more disturbing is a study that showed that women who used talc in their genital area had a higher risk of developing ovarian cancer! There are even reports of infants dying from inhaling excessive amounts of baby powder containing talc. The dangers of talc to both babies and adults appear to be very real.










  • Precautions to follow:
tell your doctor and pharmacist if you are allergic to talc or any other medications. tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. tell your doctor if you have or have ever had any other medical conditions. tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant after receiving talc, call your doctor. http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0000438/










  • Treatment for harmful exposure to talc:
Take time to read the labels carefully. If talc cannot be avoided, you should verify if the talc used is asbestos-free. When in doubt you have several options: you can call the manufacturer to confirm, or you can find substitute products. Talc-Free products are safer since you need not verify the presence of asbestos. Cornstarch is sometimes used to substitute talc ingredients in powder and cosmetic products. If for some reason you can't contact the manufacturer , you can check with your local food and drugs office if the product has been tested for safety. http://www.howtodothings.com/how-to-understand-the-hidden-dangers-of-talc-powder








An article for the dangers of Talc







OUR OPINION:

No , Talc has very serious consequences to using it. With our science knowledge today were sure there are ways to work around this dangerous chemical. It's very harmful to babys and causes many different cancers, and sideaffects.

4 comments:

  1. Your work is very well organized! And you have lots of good information too!

    Please double check the instructions on how to reference, if you need help make sure you see me.

    I noticed you indirectly mentioned 2 chemical properties do you understand what they are? Check your notes to review what is meant by chemical properties and if you are still struggling you can see me in class.

    Keep up the good work!

    ReplyDelete
  2. there's alot of spacing in here
    maybe you should minimize then number of times you hit "enter"

    ReplyDelete
  3. Good information, nicely organized

    ReplyDelete

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