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2. Photo-oxidation of polymers - Wikipedia

   en.wikipedia.org/wiki/Photo-oxidation_of_polymers

   Radicals formed by photolysis may initiate the photo-oxidation in PET. Photo-oxidation of the aromatic terephthalic acid core results in its step-wise oxidation to 2,5-dihydroxyterephthalic acid. The photo-oxidation process at aliphatic sites is similar to that seen for polyolefins, with the formation of hydroperoxide species eventually leading ...

3. Acetone peroxide - Wikipedia

   en.wikipedia.org/wiki/Acetone_peroxide

   Acetone peroxide (specifically, triacetone triperoxide) was discovered in 1895 by the German chemist Richard Wolffenstein. [5] [6] [7] Wolffenstein combined acetone and hydrogen peroxide, and then he allowed the mixture to stand for a week at room temperature, during which time a small quantity of crystals precipitated, which had a melting point of 97 °C (207 °F).

4. Stain removal - Wikipedia

   en.wikipedia.org/wiki/Stain_removal

   Alkaline stain removers are mostly used in the removal of oil-based stains via the process of saponification. [6] Sodium hydroxide is also commonly used in drain cleaners. It allows grease and other oils to dissolve into aqueous solutions like water. Other alkalis such as potassium hydroxide (much stronger than sodium hydroxide) are also used ...

5. Vapor degreasing - Wikipedia

   en.wikipedia.org/wiki/Vapor_degreasing

   Can be used on electronic parts to remove excess oil, grease, wax and other non-water soluble particles because water is not used. Used where water-based system are impractical. Cleans and prepares part surfaces for various finishing processes like painting, welding, soldering, and bonding. [2] Issues of part oxidation and water spots are not ...

6. Autoxidation - Wikipedia

   en.wikipedia.org/wiki/Autoxidation

   Autoxidation is therefore a fairly broad term and can encompass examples of photooxygenation and catalytic oxidation. The common mechanism is a free radical chain reaction , where the addition of oxygen gives rise to hydroperoxides and their associated peroxy radicals (ROO•). [ 5 ]

7. Roof cleaning - Wikipedia

   en.wikipedia.org/wiki/Roof_cleaning

   The roof cleaning of fiberglass shingles Streaking on a roof Roof cleaning being performed using a soft-wash system. Roof cleaning is the process of removing algae, [1] mold, mildew, lichen and moss from roofs. [2] Also cleaning oxidation on metal roofs. Cleaning can extend the duration of a roof's ability to function. [2]

8. Elon Musk calls for US government to 'delete entire agencies'

   www.aol.com/news/elon-musk-calls-us-government...

   Elon Musk called on Thursday for the United States to “delete entire agencies” from the federal government as part of his push under President Donald Trump to radically cut spending and ...

9. Pickling (metal) - Wikipedia

   en.wikipedia.org/wiki/Pickling_(metal)

   Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, and rust or scale from ferrous metals, copper, precious metals and aluminium alloys. [1] A solution called pickle liquor , which usually contains acid , is used to remove the surface impurities.