How to Get Gold From Computer Used

Now, we'll show you how we wash the gold from the old motherboard using the "do-it-yourself". Please note: The chemicals used in this demonstration is very dangerous, especially at the concentrations used. Therefore, we strongly recommend that you try to reproduce this experiment at home.

 

Gold is found in various places on the motherboard: the IDE connector, PCI Express, PCI, AGP, ISA, and other port2, jumper pins, the processor socket and DIMM slots (SIMM on older motherboards). All of these connectors are often covered with a layer gold a few microns thick, deposited by means of flashing or coating.

 So, the first phase of this experiment is to collect all the pins and connectors. We need pliers and cutter, screwdriver flat and interest (Philips), and others ...

 We need a lot of pins and connectors, etc., so as much as possible thrift  motherboard

 ... Together with some equipment and chemicals.

 To get a few micrograms of gold stored at the pin, we will use the method of electrolytic cell. Glass tray is composed of 95% sulfuric acid solution. cathode and anode in the copper pin. (See picture)

 By running an electric current through the cell, using a regular battery charger, copper anode (pin on pin) soluble and deposited on the cathode in the tray. Gold, apart from copper, will form a sediment at the bottom of the tray cell. it should be noted that the bath temperature increased significantly during this process.

 After all the pins we bathe or celupin and gold is off, please allow us a minute bath, in order to precipitate the gold below, then a solution of sulfuric acid we'd save as much as possible until the remaining dregs of gold under the tray (tub).

 Be careful to pour acid into water, and not vice versa! If you're doing it wrong, the first droplets of water that touches the surface of sulfuric acid will soon evaporate and can cause acid splashes. so pour the acid into the water rather than pour water into acid!

 and produces a dilute sulfuric liquid, various metals (including gold) and other waste should be filtered first, why do not we filter them directly? because the filter is difficult to filter out who viscous fluid.

Left in the filter is a mixture of various metals and impurities. Now everything is dissolved in a mixture of 35% hydrochloric acid and chlorine bleach (sodium hypochlorite) for 5%, the proportion of 2: 1.

where: 2 NaClO + HCl -> NaCl + H2O + Cl2

  Be careful! The reaction is exothermic and produces chlorine gas which is very dangerous. Chlorine gas is used as a chemical weapon during World War I, the call bertholite.

in fact, chlorine is produced by mixing hydrochloric acid and chlorine bleach is what will dissolve the gold and the form of gold chloride (III).

where: 2 Au + 3 Cl2 -> 2 AuCl3

 

Now, we need to do is filter out everything again. Filter will retain all the dirt, leaving only the gold (III) chloride solution.

To produce metallic gold, we need to precipitate the gold inside the solution, we use the powdered sodium metabisulfite, the presence of water, sodium metabisulfite to produce sodium bisulfite.

where: Na2S2O5 + H2O -> 2 NaHSO3

sodium bisulfite, which will precipitate the gold.

where: 3 NaHSO3 AuCl3 + 2 + 3 H2O -> 3 NaHSO4 + 6 HCl + 2 Au

Now we let stand, see the brown sludge at the bottom of a glass powder, hati2 we do not lose stuff at all, that's metallic GOLD!.

then we need to do is to melt the powder is in another container, gold melting point is around 1064 ° C (1947.52 ° F), an oxy-gas-powered burner butane can perform this task.

Look at the result, the grains of gold!, Economically if this will be a problem?, Of course not, this process is only fit for use on an industrial scale, tiny gold grains that we produce only appreciating a few hundred thousand, in fact, sewage treatment plants like this using the techniques and chemicals are more dangerous, these tips interesting and fun is not it? so that we know that can produce its own gold mine of materials used his own computer