Monday, November 22, 2010

Tefsel: A Real Tough Sell

After watching a documentary on Hulu, which discussed how Science seemed so slow to recognize Nature's use of fractals, that were popularized by the visual thinker, Benoit Mandelbrot, I was pleased to recognize their character:

"The Teflon molecules are broken into smaller Teflon particles (Remember that Teflon is a polymer molecule that can be broken into smaller fragments without changing its chemical properties)." [p. 2, 2nd]

[ - 15 years on the web - Started 10-22-1995]

DuPont's Teflon Cover-up

EPA Steps In - Pg 3 of 3

By Roberta C. Barbalace

[Mar. 22, 2006]

Had it not been for the diligence of a "whistle blowing" employee at DuPont, the case might still have been unexposed. This makes one wonder it there are lots of other "C-8s" out there, different chemicals, created by companies other than DuPont, with dubious records, filed away in dusty research files marked "Personal and Confidential."

Found in blood

  • PHOa: Perfluorooctanoic acid - used in processing Teflon (5)
  • PHOs: perfluorooctane sulfonate
  • PFOS: Perfluorooctanyl sulfonate - Active ingredient in Scotch Guard

Temperature Versus Teflon offgas/breakdown and effects (2)

464°F - Lowest temperature that Teflon particles have been measured
500°F - Searing temperature for meat
536°F - Birds killed in DuPont lab experiments
554°F - Oxidized Teflon particles released
680°F - Toxic gases released
  • TFE - Animal carcinogen
  • HFP - Worker Toxicant
  • TFA - Poisonous to plants
  • DFA - Animal kidney toxicant
  • MFA - Lethal to humans at low doses
  • PFOA - Animal carcinogen

700°F - Preheated grill
750°F - Surface Temperature of PTFE coated pan after heating for 8 minutes on conventional stove
800°F - Electric coil on range top
878°F - Silica tetrafluoride released - Highly toxic by inhalation and ingestion
887°F - PFIB - Chemical warfare agent
932°F - Carbonyl fluoride - Fluorinated version of chemical warfare agent
1,000°F - Drip Pans in stove top burner gas flame on top
1112°F - Trifluoroacetic acid fluoride - degrades to HF and TFA, OFCB Linked to Heart palpations, PFB - Global warming gas
1,202°F Carbon tetrafluoride - contributes to glogal warming and affects heart, lungs, breathing
1,500°F - Broiling temperature for high end ovens


  1. Steven DiJoseph; EPA Scientific Advisory Board Unanimously Approves Recommendation Labeling PFOA a 'Likely Carcinogen' Date Published: Friday, February 17th, 2006
  2. Canaries in the Kitchen - Teflon offgas studies; Environmental Working Group;
  3. EPA Files New Claim Alleging DuPont Withheld PFOA Information; EPA Newsroom; Release date: 12/06/2004
  4. Dutton, Geoff; West Virginia Ruling Judge: DuPont Chemical Is Toxic The Columbus Dispatch (Ohio); May 8, 2003
  5. Morris, Jim; Did 3M and DuPont ignore evidence of health risks?; Mother Jones; Sept. - Oct. 2001.

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Roberta Barbalace. DuPont's Teflon Cover-up. Mar. 22, 2006. Accessed on-line: 11/22/2010

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<a href="">echo DuPont's Teflon Cover-up (</a>- Teflon is in household products we use every day, but evidence is coming to light that this miracle chemical is not as safe as DuPont has lead us to believe. Court records and internal documents have shown that DuPont has been covering up the true dangers of Teflon for decades.


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