Scotchguard has been applied to carpeting for a long time, even re-applied by carpet cleaners after they finish. It is now ‘reformulated’, but I would guess still toxic:
“In May of 2000, 3M pulled Scotchgard stain protector and stain resistant fabrics from the market based on results from internal toxicity studies and mounting pressure from the U.S. Environmental Protection Agency. It was determined the main chemical compound present in Scotchgard products posed long-term, harmful damage to both humans and the environment.”
Scotchguard is a PTFE chemical (Polytetraflouroethene) also known by the tradename Teflon (R - Dow Chemical)
Still, Fluorine is in the same periodic family as both chlorine and bromine. Toxicity wise, tho, it is the “phenyl” grouping that is pointed to most in DPBE/PCB/PBB family as a bad actor.
Digression: Fluorine is used in stannousfluoride to strengthen tooth enamel. Interestingly enough “stannous” represents Tin (Sn), a known agent of heavy metal toxicity/cancer risk.
And, for the fluoridated water folks...no, stannousfluoride doesn’t create hydrofluoric acid when it mixes with the hydrochloric acid in the human stomach. It disassociates into components making a mix of tin, fluorine and chlorine...all in a very weak acid. If there is any recombination, Tin and chlorine have strong affinity for each other so stannouschloride would, over time, become dominant in the mixture...if allowed to equilibrate.
19 Dec 2017 - 7:22:19 PM
Board owner, mods, and other patriots:
Sincere thanks for all that you do.
You are true heroes.
Long overdue - my apologies.
There will be a day (within the next few months) that a scary but safe personalized message finds its way to you on multiple platforms recognizing your contributions.
We thank you for your service.