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2. Water blue - Wikipedia

   en.wikipedia.org/wiki/Water_blue

   Water blue, also known as aniline blue, Acid blue 22, Soluble Blue 3M, Marine Blue V, or C.I. 42755, is a chemical compound used as a stain in histology. Water blue stains collagen blue in tissue sections.

3. Bondo (putty) - Wikipedia

   en.wikipedia.org/wiki/Bondo_(putty)

   Nowadays the brand name is used by 3M for a line of American-made products for automotive, marine and household repairs. [1] [2] The term Bondo is trademarked by 3M, but is commonly used to refer to any brand of automotive repair putty due to its popularity. [3] [4] It is also used by sculptors. [5]

4. Per- and polyfluoroalkyl substances - Wikipedia

   en.wikipedia.org/wiki/Per-_and_polyfluoroalkyl...

   The EPA issued health advisories for four specific PFASs in June 2022, significantly lowering their safe threshold levels for drinking water. PFOA was reduced from 70 ppt to 0.004 ppt, while PFOS was reduced from 70 ppt to 0.02 ppt. A safe level for the compound GenX was set at 10 ppt, while that for PFBS was set at 2000 ppt. While not ...

5. 3M to Supply Enhanced Combat Helmets to United States Marine ...

   www.aol.com/news/2013-09-10-3m-to-supply...

   3M to Supply Enhanced Combat Helmets to United States Marine Corps 77,000 helmets to be delivered starting this fall ST. PAUL, Minn.--(BUSINESS WIRE)-- 3M announced today its wholly-owned ...

6. Perfluorobutanesulfonic acid - Wikipedia

   en.wikipedia.org/wiki/Perfluorobutanesulfonic_acid

   Perfluorobutanesulfonic acid (PFBS) is a PFAS chemical compound having a four-carbon fluorocarbon chain and a sulfonic acid functional group. It is stable and unreactive because of the strength of carbon–fluorine bonds. It can occur in the form of a colorless liquid or a corrosive solid. [1]

7. Perfluoro(2-methyl-3-pentanone) - Wikipedia

   en.wikipedia.org/wiki/Perfluoro(2-methyl-3...

   Perfluoro(2-methyl-3-pentanone) is a fluorinated ketone with the structural formula CF 3 CF 2 C(=O)CF(CF 3) 2, a fully-fluorinated analog of ethyl isopropyl ketone.It is used as an electronics coolant liquid and fire protection fluid sold commercially by 3M under brand names such as Novec 1230, Novec 649, and FK-5-1-12.