porous metal filter
51Sodium hydroxide — Sodium hydroxide …
52Wetland — For other uses, see Wetland (disambiguation). The Florida Everglades massive wetland system in the United States saw 1.7 billion gallons of fresh water flushed from it daily and pumped into the ocean following one of the most successive water… …
53Percolation — In physics, chemistry and materials science, percolation concerns also the movement and filtering of fluids through porous materials. Examples include the movement of solvents through filter paper (chromatography) and the movement of petroleum… …
54circulation — circulable /serr kyeuh leuh beuhl/, adj. /serr kyeuh lay sheuhn/, n. 1. an act or instance of circulating, moving in a circle or circuit, or flowing. 2. the continuous movement of blood through the heart and blood vessels, which is maintained… …
55Secondary ion mass spectrometry — Infobox chemical analysis name = Secondary ion mass spectrometry caption =CAMECA IMS3f Magnetic SIMS Instrument acronym = SIMS classification =Mass spectrometry analytes = Solid surfaces, thin films related = Fast atom bombardment… …
56Charcoal — For other uses, see Charcoal (disambiguation). Dry charcoal …
57Chamois leather — Shamy redirects here. For the pair of characters from The Big Bang Theory, see List of The Big Bang Theory characters. A Chamois leather cloth Chamois leather (   …
58Sulfuric acid — Sulfuric acid …
59Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p …
60Label — For other uses, see Label (disambiguation). Shirt with labels …
