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Au ( Gold )

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Keterangan

       Gold has the highest malleability and ductility of any element. It is unaffected by air, water, all acids except aqua regia, and alkalis. It is a good conductor of heat and electricity. It is also a good reflector of infra-red radiation, and as it is inert makes an excellent coating for space satellites.

Nama lain (trademark, branding etc.)

Aurum, Zlato, Zlato, Or, Gold - s, Oro, Gull, Ouro, Золото, Guld

Spesifikasi Produk

Overview of Gold
Atomic Number 79
Group 11
Period 6
Series Transition Metals
Relative Atomic Mass (12C=12.000)  196.97
Melting Point:  1337.73K 1064.58°C 1948.24°F
Boiling Point:  3080K 2807°C 5085°F
Density/kg m-3  19320 (293K)
Ground State Electron Configuration  [Xe]4f145d106s1
Electron Affinity(M-M-)/kJ mol-1  -223
Discovery Year:  Unknown
Name Origin: Gold from old English word geolo (yellow) Au from Latin: aurum (gold).

Aplikasi

       Very malleable. Used in electronics, jewelry dental crowns and coins. Supposedly around half of the world's supply of gold is stored in the United States Treasury Department's gold depository in Fort Knox Kentucky, which is considered to be one of the most secure buildings in the world.

Bahan Baku

Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, malleable, and ductile metal with a bright yellow color and luster that is considered attractive, which is maintained without tarnishing in air or water. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements, solid under standard conditions. The metal therefore occurs often in free elemental (native) form, as nuggets or grains in rocks, in veins and in alluvial deposits. Less commonly, it occurs in minerals as gold compounds, usually with tellurium.

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Produk terkait

  • GOLD MINING
    ANTAM's main gold and silver production is sourced from its underground gold mines at Pongkor, West Java and Cibaliung, Banten. Indications of gold deposits at Pongkor were discovered by ANTAM's Geology Unit in 1981, and production commenced in May 1994 after ANTAM secured the mining license in 1992. The Cibaliung gold mine was acquired in 2009 from an Australian company, Arc Exploration and began to operate in 2010. The Cibaliung mine is operated by ANTAM's subsidiary, PT Cibaliung Sumberdaya. ANTAM also owns 25% of PT Nusa Halmahera Minerals which operates the Gosong mine in North Maluku. At the beginning of June 2013 ANTAM received an extension of forest borrow and use license for Pongkor gold mine until 2021.
    • Aneka Tambang Building Jl. TB. Simatupang/Lingkar Selatan Kota Administrasi Jakarta Selatan
    • +62 21 7891234
    • +62 21 7891224
  • PRECIOUS METAL REFINING
    ANTAM's precious metal refinery, Logam Mulia has the capacity to produce 60 ton (1.9 million toz) of internationally accredited gold per year and 250 ton (8 million toz) of internationally accredited silver per year.
    • Aneka Tambang Building Jl. TB. Simatupang/Lingkar Selatan Kota Administrasi Jakarta Selatan
    • +62 21 7891234
    • +62 21 7891224