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  2. Carbon tetrachloride - Wikipedia

    en.wikipedia.org/wiki/Carbon_tetrachloride

    Carbon tetrachloride, also known by many other names (such as carbon tet for short and tetrachloromethane, also recognised by the IUPAC), is a chemical compound with the chemical formula CCl 4. It is a non-flammable, dense, colourless liquid with a "sweet" chloroform -like odour that can be detected at low levels.

  3. Gold compounds - Wikipedia

    en.wikipedia.org/wiki/Gold_compounds

    Gold compounds. Gold compounds are compounds by the element gold (Au). Although gold is the most noble of the noble metals, [1][2] it still forms many diverse compounds. The oxidation state of gold in its compounds ranges from −1 to +5, but Au (I) and Au (III) dominate its chemistry. Au (I), referred to as the aurous ion, is the most common ...

  4. Fulminating gold - Wikipedia

    en.wikipedia.org/wiki/Fulminating_gold

    Fulminating gold. Fulminating gold is a light- and shock-sensitive yellow to yellow-orange amorphous heterogeneous mixture of different polymeric compounds of predominantly gold (III), ammonia, and chlorine that cannot be described by a chemical formula. Here, "fulminating" has its oldest meaning, "explosive" (from Latin fulmen, lightning, from ...

  5. Fineness - Wikipedia

    en.wikipedia.org/wiki/Fineness

    1 troy ounce of four nines fine gold (999.9) 999.999—six nines fine: The purest gold ever produced. Refined by the Perth Mint in 1957. [3] [4] 999.99—five nines fine: The purest type of gold currently produced; the Royal Canadian Mint regularly produces commemorative coins in this fineness, including the world's largest, at 100 kg. [5] 999. ...

  6. Gold - Wikipedia

    en.wikipedia.org/wiki/Gold

    A gold nugget of 5 mm (0.20 in) in size can be hammered into a gold foil of about 0.5 m 2 (5.4 sq ft) in area. Gold is the most malleable of all metals. It can be drawn into a wire of single-atom width, and then stretched considerably before it breaks. [14]

  7. Category:Gold compounds - Wikipedia

    en.wikipedia.org/wiki/Category:Gold_compounds

    Pages in category "Gold compounds" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes. ...

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