King of metallic gold No. 79 is the element with the symbol Au. It is
yellow. It is free element in nature and no reactivity. It is resistant
to rust or oxide stains. Melting point of gold is 1064 degrees Celsius
and boiling point is 2701 degrees Celsius. Specific gravity is 3.19.
Atomic weight is 196.67. The crystalline form is cube, Octahedron or
Dodecahedron. Nowadays, the prices are higher. Gold is used as a
component of multiple devices. When used, it will expire and it is not
useful. How many people know that dropped gold or junk gold. E-Book gold
extraction can make the readers know about the gold that can extracted a
lump of pure gold > 99 % easily.
The readers just Read and follow this E-Book you will be able to extract the gold from the gold plated,alloy materials in the course.
E-Book Gold Extraction Process & Gold Recovery,Gold Refine.
Gold plated circuit board and chip
Gold Value of Computer Chips found on Motherboards & PCB Circuit Boards. Some Vintage Circuit cards are sought after by collectors as well.circuit board with heavy gold plating. Depending on their age, computer motherboards and other electronic circuit boards can also contain rich gold content made up of gold-plated circuit traces, edge fingers, connectors, Integrated Circuits, transistors, & memory chips. Before sending your computer motherboards and gold-laden PCB cards to the precious metal recycler you should make sure to check for their collectible value first. Some of these boards are highly sought after by vintage computer collectors & hobbyists.
Military, aerospace, electronic circuit testers and telecommunications boards, especially ones from the 1960′s thru the 80′s, often have generous gold-plating of their traces, fingers, connectors & electronic components than the modern circuit boards
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