Filter press - Wikipedia
An early example of this is the Dehne filter press, developed by A L G Dehne (1832–1906) of Halle, Germany, and commonly used in the late 19th and early 20th century for extracting sugar from sugar beet and from sugar cane, and for drying ore slurries.Its great disadvantage was the amount of labor involved in its operation. (Fully) Automatic filter pressColourimetric determination of copper ore | Experiment,,Samples of copper ore, such as malachite, could be shown, if available. For the second question, work out the concentration of copper in, say, test tube 3: Concentration Cu (as Cu 2+) = 4/10 x 1 M = 0.4 M. Work out the concentration of copper ions when 5 g of copper carbonate is dissolved and made up to 100 cm 3 of solution (formula mass of,Top 9 Causes of Copper Corrosion in Home Piping Systems,According to some estimates, copper corrosion costs the United States more than $1 billion a year. Copper corrosion in home plumbing systems is a common phenomenon that can have many causes. Besides actual piping failure, the telltale blue stains the oxidized copper leaves on sinks, tubs, and fixtures can identify copper corrosion.