Copper-sulfate/sulfuric-acid

In comparison to electrorefining, the electrowinning process of copper, when using a copper sulfate-sulfuric acid electrolyte, presents an interesting situation. In the electro-... 

Silver is usually extracted from high-grade ores by three common processes that have been known for many years. These are amalgamation, leaching, and cyanidation. In one amalgamation process, ore is crushed and mixed with sodium chloride, copper sulfate, sulfuric acid, and mercury, and roasted in cast iron pots. The amalgam is separated and washed. Silver is separated from its amalgam by distillation of mercury. 

Acid Copper Sulfate Copper sulfate Sulfuric acid... 

FERRIC SULFATE -SULFURIC ACID COPPER SULFATE -SULFURIC ACID COPPER SULFATE -SULFURIC ACID WITH COPPER CONTACT... 

Copper sulfate-sulfuric acid solution CUSO4-H2SO4-H2O... 

To test the validity of the above equations, Popov et al. [7, 11, 13, 14] carried out experiments on diffusion-controlled metal electrodeposition on a well-defined, triangularly shaped surface profile, through a diffusion layer of well-defined thickness 5 hp. A phonograph disk negative was used as the substrate upon which a layer of an agar-containing copper sulfate-sulfuric acid solution was placed and left to solidify, as illustrated in Fig. 2.3a. 

FIG. 8—Corrosion of sensitized Type 316 steel In boiling copper sulfate-sulfuric acid solution. Specimen 17.4 Cr 12.7 Nl 1.89 Mo 0.053 C. Heated 1 h at 677°C. Solution 15.7 % sulfuric acid with 5.7 % anhydrous copper sulfate. 

The most common foil used in manufacturing printed circuits is electrodeposited copper foil (ED foil). ED foil is produced through an electrochemical process in which copper feed stock or scrap copper wire is first dissolved in a sulfuric acid solution. The purified copper sulfate/ sulfuric acid solution is then used to electroplate copper onto a cylindrical drum typically made from stainless steel or titanium. Figure 7.20 illustrates the overall process used to make electrodeposited copper foil. This process results in a copper foil with a relatively smooth, shiny side, and a coarser matte side, as illustrated in Fig. 7.21.The shiny side mirrors the surface... 

The preferred industrial process uses an acid copper sulfate solution containing copper sulfate, sulfuric acid, chloride ion, and organic additives. 

DanieU Two-fluid cell copper/copper sulfate/sulfuric acid/zinc... 

Intergranular Corrosion Resistance AL 29-4C contains a deliberate titanium addition to stabilize the carbon and nitrogen. AL 29-4C is resistant to intergranular corrosion as determined by the copper-copper sulfate-sulfuric acid tests detailed in ASTM Specification A 763, Practices Y and Z. 

Although metallic copper is produced via the smelting of copper ores, it contains enough impurities (and the attendant increase in electrical resistance) to preclude its use as an electrical conductor. Hence, all copper for use in electrical wire and eable must be purified via electiorefining with an impure copper plate as the anode, a pure copper sheet as the cathode, and copper sulfate/sulfuric acid as the electrolyte ... 

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