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CAS 65530-72-5

Poly(difluoromethylene), α-fluoro-ω-[2-(phosphonooxy)ethyl]-, diammonium salt

This substance is a PFAS-based fluoropolymer salt used in industrial coatings and specialty surfactants. Like other PFAS, it does not break down easily and can contribute to long‑lasting environmental and human exposure [1][2].

Where It Comes From

Production and use in surface treatments, processing aids, and performance coatings; releases can occur from manufacturing, product use, and waste streams [2].

How You Are Exposed

Drinking water near PFAS facilities or firefighting foam sites, indoor dust, some treated consumer goods, and occupational settings [1][2].

Why It Matters

PFAS persist and can build up in people; some are linked to higher cholesterol, immune effects (reduced vaccine response), liver and thyroid changes, pregnancy‑related hypertension, and, for PFOA, cancer [1][3][4].

Who Is at Risk

Workers handling PFAS or AFFF, communities near plants, airports, and military bases, pregnant people, infants, and those using contaminated private wells [1][2].

How to Lower Your Exposure

Test your water; use certified GAC or reverse‑osmosis filters; follow local fish advisories; choose PFAS‑free products; minimize AFFF use and cleanup carefully; wet‑wipe/HEPA‑vacuum dust; wash hands before eating [2][5][6][7].

References

  1. [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021. https://www.atsdr.cdc.gov/toxprofiles/tp200.pdf
  2. [2]U.S. EPA. PFAS Explained. https://www.epa.gov/pfas/pfas-explained
  3. [3]IARC. Monographs Volume 134: PFOA (Group 1) and PFOS (Group 2B). 2023. https://publications.iarc.fr/604
  4. [4]NTP. Monograph on Immunotoxicity of PFOA and PFOS. 2016. https://ntp.niehs.nih.gov/whatwestudy/assessments/noncancer/completed/pfoa
  5. [5]ATSDR/CDC. Reduce Your Exposure to PFAS. https://www.atsdr.cdc.gov/pfas/health-effects/reduce-exposure.html
  6. [6]CDC/NIOSH. PFAS and Fire Fighters. https://www.cdc.gov/niosh/firefighters/pfas.html
  7. [7]U.S. EPA. Drinking Water Treatment Technologies for Removing PFAS. https://www.epa.gov/water-research/drinking-water-treatment-technologies-removing-per-and-polyfluoroalkyl-substances-pfas

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