also see investigations
Ic's after aqua regia
Nitric Acid Process (dissolves base metals including copper, lead, tin, nickel which otherwise inhibits gold precipitation etc)
Test for removing cpu gold pins following above recipe:
Test (1 cpu, 10ml nitric acid, 20ml water) after 1 minute over meths. burner
Test after 1.1/2 hours, most pins are out, remaining acid/water has become green/blue
After 1.3/4hr after all pins free, water was added to residue to dilute; cpu removed and the gold pins washed off cpu and beaker with a water spray, before filtering through a coffee filter
Washed through chemical paper filter (diluted acid residue to right of image)
Pin connectors after Nitric Acid bath
To recover the gold plating from pins -
Gold plated pins etc. after electrolysis
left with chloric auric acid – will look green/brown if still has other metals. If it is mainly gold it will be yellow-brown, or yellow if of high quality gold.
leave overnight to settle
then precipitate gold with ferrous sulphate process (below)
1] dissolve copperas (ferrous sulphate) in warm water – is difficult to quantify so make in ½ cup sizes first
2] add a little Hcl to copperas solution until turns 'apple green'.
3] slowly pour copperas solution into chloric auric acid /leachate while stirring (glass rod/similar). The gold will appear as a dark brown cloud.
If there is no bubbling (ie. nitric acid still reacting) leave and allow to settle overnight. If still reacting see purifying leachate below.
Take a sample from the top of the liquid and add to a test tube and then add a small amount of ferrous sulphate – if a brwon cloud appears then not enough copperas has been added – add more copperas solution to the main leachate solution and leave to stand – repeat until no brown cloud in test tube sample.
4] siphon off as much liquid as possible and filter the remaining.
Wash with water and wash brown powder from filter into small pyrex dish.
5] add hot water to dish, let settle, drain and repeat 6] Cover brown powder (gold) with Hcl and boil off to dissolve yellow copperas mud from gold
7] pour off remaining acid and wash with hot water
8] filter down into a lump, dry and put in to alumina boat/cermic blanket and melt with MAPP gas torch.
continue to precipitation of Gold with ferrous sulphate (see above)
NB. if the bubbling reaction continues during the precipitation of Gold with ferrous sulphate process keep adding copperas to the solution until stops bubbling – then add copperas to make the brown cloud and follow rest of process.
nb. ferrous sulphate method of precipitation preferred - this method was tried unsuccessfully (eg. re. online discussions on addition of urea etc)
(adapted from http://www.techpowerup.com/forums/showthread.php?t=156000 )
also note iron redox: (add water, 1/10 quantity sulphuric, stir with iron)
we can also extract silver from silver nitrate with electrolysis.
Purification of Platinum/Palladium from: Platinum
Crushing/powdering the rockusing steel mortar and pestle eg. a tube a foot high (30cm) and aprox 4” (10cm) diameter and closed at one end with a foot plate, and a pestle of a hardened steel bar. Rock samples are dropped into the tube and beaten with the steel bar until they are crushed sufficiently <2mm. The crushed rock is panned/sieved in water using cheap plastic pan (w. ridges).
Froth flotation technique(different variants for separating ores and algae): add two spatulas of the finely crushed ore to a large test tube and then add 3cm of water, then be shake. add approx. 2 cm of paraffin and 5 drops of a good quality detergent and shake again - bubbles should move up side of tube with metal filings - scrape and wash with distilled water. Scale accordingly. (basic DIY technique here: http://www.oresomeresources.com/library/utilities/download.php?id=195).
Dissolution of minerals- azurite (copper), pyrite (iron), arsenopyrite (arsenic), galena (lead), and sphalerite (zinc) in dilute hydrochloric acid - eg. place acid on ore and rub with steel to coat with the desired metal
Dissolution of minerals/electrolysis- malachite for copper → crush + put in filter/funnel over empty beaker → pour (dilute) sulphuric acid over chips, drain, repeat from beaker to beaker until solution sky blue (copper sulphate) → put foil/steel in to leachate (dissolution) or use electrolysis (battery charger).
copper - malachite
iron - haematite (ref. Georgius Agricola, Book IX de re Metallica; Al-Biruni. Chapter 33, Book of Stones).
tin - cassiterite
synthesize silicon from silica sand (quartz sand) and follow procedure here - silicon_platelet_manufacture - but add boron oxide to silicon powder as flux before microwave melt
or high voltage using old microwave
also see use in Chrysotype Photography
gold/copper or st. steel electrodes + 500ml boiling distilled water + 20ml 0.5M sodium chloride (salt) + 10ml 0.5M sodium citrate
(0.5M x 58.44 g/mol of NaCl in 1 L of solution or 29.22 g of NaCl. → for 100ml = 3g NaCl….. 0.5M x 258g/mol of sodium citrate in 1l = 129g/mol → for 100ml = 1.3g of sodium citrate)
(drinking gold: Medievals - to increase intelligence & treat mental illness; in China used to promote immortality and defy bodily decay and ageing - joke using TM to out-Turing Turing and defy Halting Problem)
copper/zinc with filter paperbetweensoaked with electrolyte (sulphutric/copper sulphate/lemon juice/salt water….)
Copper Sulphate 30% solution in clay pot/roll of cartridge paper glued to floor of large pot, with the larger pot 2% copper sulphate solution…. electrodes both of copper(copper rocks)
following based on The Golden Book of Chemistry Experiments 1960 by Robert Brent and illustrated by Harry Lazarus
Silicon (from the Latin silez, flint) is the second most abundant element on earth - after oxygen. Almost half of waht we walk on is silicon. Its not found free in nature but rather as either silicon oxides or silicates, as for example, in oxide form in quartz, rock crystal, flint, garnets, amethyst, emerald and agate, and silicate form in granite, hornblwnde, asbestos, clay, feldspar, mica. Silicon is found in nature in combination with oxygen (mostly as the dioxide, SiO2) and in various silicates, that is, as salts of various silic acids.
Waterglass is a concentrated solution of sodium silicate (Na2SiO2)used as a glue: http://en.wikipedia.org/wiki/Sodium_silicate Von Wagner: http://www.archive.org/details/manualchemicalt00croogoog
Making Silic Acid (H2SiO2):
Making Silicon Dioxide:
Making Sodium Silicate/Waterglass:
Growing a Silicon Jungle:
Making Silicon Powder:
crude silicon conductor granule manufacture: http://vimeo.com/10828833
metals contained in computers commonly
include aluminum, antimony, arsenopyrites (arsenic),
barium, beryllium, cadmium, chromium,
cobalt, azurite (copper,) gallium, gold, galena (lead),
manganese, mercury, palladium, platinum,
selenium, silver, and zinc (
those in italics are hazardous).
Goldschmidt/thermite redox reaction: mix oxides together and ignite with magnesium (eg. sparkler) - attempt with powdered but unrefined rock ores - experiment with proportions (for comparison, refined iron oxide + aluminium = 8g : 3g) http://hackaday.com/2008/09/16/how-to-thermite-based-hard-drive-anti-forensic-destruction/
using heat, pressure, blunt forces, attempt to extract, breakdown and recombine minerals into amalgams or arrays eg. crude thermite reaction (up to 3000°C) entrained between powdered iron ore rock (haematite) with either powdered borax/boron acid (or both), magnesium, silicon, or bauxite (aluminium) + selected minerals = fractured solid of iron matrix + minerals - anthropoceneic fossilizations.
copper filings coherer receiver, led, dipole antenna, bbq lighter, audio output - based on Nyle Steiner 1
semi-conductor oscillator using copper whisker, zinc ferrite (burnt galvanised sheet steel) w. audio output, based on Nyle Steiner 2
adapted with copper and cuprous oxide (red not black)
Material Safety Data Sheet: Sulphuric Acid: sulphuric_acid.pdf
Material Safety Data Sheet: Hydrochloric Acid: hydrochloric_acid.pdf
Material Safety Data Sheet: Nitric Acid: nitric_acid.pdf
Material Safety Data Sheet: Sodium Hypochlorite sodium-hypochlorite-tech-msds.pdf
Material Safety Data Sheet: Hydrogen Peroxide msds-12_ch6204-28.pdf
Material Safety Data Sheet: Methylated Spirit: methylated_spirit_.pdf
Material Safety Data Sheet: Sodium Silicate: sodium_silicate.pdf
Material Safety Data Sheet: Liquid Nitrogen: liquid_nitrogen.pdf
Material Safety Data Sheet: 2-proponal 2-propanol.pdf