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2. RCA clean - Wikipedia

   en.wikipedia.org/wiki/RCA_clean

   Provided the RCA clean is performed with high-purity chemicals and clean glassware, it results in a very clean wafer surface while the wafer is still submersed in water. The rinsing and drying steps must be performed correctly (e.g., with flowing water) since the surface can be easily recontaminated by organics and particulates floating on the ...

3. Flame cleaning - Wikipedia

   en.wikipedia.org/wiki/Flame_cleaning

   Flame cleaning, also known as flame gouging, is the process of cleaning a structural steel surface by passing an intensely hot oxyacetylene flame over it. Mill scale and rust are removed by the reducing effect of the flame and the action of the heat, leaving the surface in a condition suitable for wire brushing and painting.

4. Wikipedia : Featured picture candidates/Fish Cleaning Station

   en.wikipedia.org/.../Fish_Cleaning_Station

   Fish Cleaning Station Original Not an edit of the first image,but original image taken before the nominated one Cropped of the second image Reason Fascinating, underwater image taken in a wild and showing a really interesting, rarely photographed behavior.

5. Lucky iron fish - Wikipedia

   en.wikipedia.org/wiki/Lucky_iron_fish

   Lucky iron fish are fish-shaped cast iron ingots used to provide dietary supplementation of iron to individuals affected by iron-deficiency anemia. The ingots are placed in a pot of boiling water to leach elemental iron into the water and food.

6. Marine mercury pollution - Wikipedia

   en.wikipedia.org/wiki/Marine_mercury_pollution

   Mercury can enter seas and the open ocean as a result of the down stream movement and re-deposition of contaminated sediments from urban estuaries. [12] For example, high total Hg content up to 5 mg/kg and averaging about 2 mg/kg occur in the surface sediments and sediment cores of the tidal River Mersey, UK, due to discharge from historical industries located along the banks of the tidal ...

7. Trichloroethylene - Wikipedia

   en.wikipedia.org/wiki/Trichloroethylene

   Trichloroethylene (TCE) is a halocarbon with the formula C 2 HCl 3, commonly used as an industrial metal degreasing solvent.It is a clear, colourless, non-flammable, volatile liquid with a chloroform-like pleasant mild smell [3] and sweet taste. [9]