فارسي | English
  About Us | About Iran | Contact Us | Staff Info[Geoportal Info] [Maps] [Mining Info] [Other Activities]  
 
  News | Events | Photo Gallery | Downloads | Links | Kids  Search    Region    Scale    Subject   :Access to information by   Home | Newest   
 
 
[Tantalium (Ta)]
 
   Tantalum (Greek Tantalos, mythological character) was discovered in Sweden in 1802 by Anders Ekeberg and isolated in 1820 by J?ns Berzelius. Many contemporary chemists believed niobium and tantalum were the same elements until 1844 and later 1866 when researchers showed that niobic and tantalic acids were different compounds. Early investigators were only able to isolate impure metal and the first relatively pure ductile metal was produced by Werner von Bolton in 1903. Wires made with tantalum metal were used for light bulbs until tungsten replaced it.
index: [Tantalium (Ta)]
 
Search in index with:    

  Biology & Environmental effects
    Biology
    Environmental effects  .....[1Page More]

  Conclusion
    Comparison between national positions of the mines and the global one
    Determining the investment rate, time & capacity of operation
    Economic studies
    Employment
    Exploitation studies
    Exploration studies
    Investigating the supply& demand  .....[1Page More]
   Comparison between price & consumption changes of Tantalum in past & future
   Investigating the national & global prices
   Investigating the supply& demand in Iran
   Predicting the future supply& demand of Tantalum in the world
   Production& Consumption changes and its balance in past
    Mineral - Processing studies

  General Properties of Tantalum
    Composing minerals  .....[1Page More]
    History  .....[1Page More]
    Properties of Tantalum  .....[1Page More]
   Chemical properties  .....[1Page More]
   Crystallographic properties  .....[1Page More]
   Mechanical& Physical properties  .....[1Page More]

  Geology of Tantalum  .....[1Page More]
    Different types of composing ore deposits  .....[1Page More]
    Formation conditions & genesis of Tantalum  .....[1Page More]
    Geology & diffusion of Tantalum in Iran

  Investigating the Status of Tantalum in Iran & World  .....[1Page More]
    Investigating the exports of Tantalum
   Iran exports rate of Tantalum
   World exports rate of Tantalum   .....[1Page More]
    Investigating the imports of Tantalum
   Iran imports rate of Tantalum
   world imports of Tantalum rate  .....[1Page More]
    Investigating the prices of Tantalum
   Investigating the global prices of Tantalum  .....[1Page More]
   Investigating the national prices of Tantalum
    Production of Tantalum
   Investigating the Production& mineral- processing of Tantalum in Ira
   Main producing companies& industries of Tantalum in world
   Main producing countries of Tantalum   .....[1Page More]
   Production trend&rate of Tantalum in world  .....[1Page More]
    Reserves of Tantalum
   Issued exploration certificates & in-process Projects
   Main potentials& Reserves of Tantalum in Iran
   Main reserves of Tantalum in the world  .....[1Page More]
    Significant consumptions of Tantalum   .....[1Page More]
   Consuming Industries of Tantalum in Iran   .....[1Page More]
   Issued agreements in principle & in-process projects
    The exploration, extraction & mineral- processing methods of Tantalum
   The exploration main methods of Tantalum
   The extraction main methods of Tantalum   .....[1Page More]
   The mineral- processing main methods of Tantalum  .....[1Page More]

  References  .....[1Page More]
 
 
 
Publications  Library
Glossary  Papers
 
 
 
 
FAQ  Members
Job Offer  Training
 
 
 
 
• Medical Geology Database 
• Geological Atlas of Roads 
• Marine Geology 
• Geography information 
• Mines and Deposits of Iran 
• Land Geophysics Database- Iran 
• Landslide Database of Iran 
• Exploration Area DB 
• Copper Database 
• Gold Database  
• Geoscience Laboratories 
• Mineral Information 
• Bibliographic Database 
• Geochemistry Database 
• Earthquake database 
• Abandoned mines DB of Iran 
• Mineral processing database 
• Minerals database 
 
 
 
 
Login Name:
Password:
Sign Up for membership ]
 
 
Atomic Number: 73
Atomic Weight: 180
Density:
65/16 gr/cm3
Hardness: 5/6
Color: gray-blue
Period:
6
Table Group:
5
Series:
Transition me.
 
 
   Others Activities:• Geoscience database of ALBA • Geoscience Database of ECO • GEOLOGICAL SURVEY OF IRAN 
• Tajikistan Geoscience Database • Geo Database of Venezuela • 4th National Development Plan • Foreign Investment(FIPPA) 
• The general policies (Mines) • 26th Symposium on Geosciences • Ongoing projects   
 
 
Maps:• Map of Iran's Earthquake • Distribution Map of mineral Processing Plants 
• Mineral Distribution Map of Iran • Geosciences laboratories distribution map of Iran • Orohydrographic Map of Iran 
• Select state on iran map • Geological Map of Iran(1:1000, 000 Scale) • 2500 K Magnetic Lineament Map of Iran 
    
 
Best viewed:1024*768
National Geoscience Database Of IRAN
URL:www.ngdir.ir
Contact Mail:Info@ngdir.ir
 
 
 Search with:           
Designed by Payvand Software Group  Privacy | Copyright | Disclaimer