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The color gold (metallic) with hexadecimal color code #d4af37 is a shade of yellow. In the RGB color model #d4af37 is composed of 83.14% red, 68.63% green and 21.57% blue. In the HSL color space #d4af37 has a hue of 46° (degrees), 65% saturation and 52% lightness. This ...
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Twenty cent euro coin isolated on green chroma key background, close-up rotating. Money cash concept, business. 00:16 Infinite rows of fine gold bars 00:09 Close-up of various hanging strong metal chains. 00:13 Close-up inside mechanism with lot of intricate pipes and iron parts 00:15 ...
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Dissolution of base metals is affected using a strong oxidizing agent, 20%(w / v) potassium persulphate, which is also "eco-friendly" or "green"; and heating to boiling temperature. Recovery of gold is achieved by melting. The recovery efficiency is on par with the cyanidation process. ...
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