Extreme Mining Ltd

• MOQ 500 Kilogram

Dear principle Buyers We wish to confirm with full legal responsibility, under the penalty of perjury, that we are the principle sellers of the material mentioned below with its Commodity:coltan (Tantalite) being Tantalum Ta5 o5 Quantity:60 MT Quality: 38% at 205 Product specification: Coltan Tantalum Ta2O5 Granules Purity 36% Non-Radioactive material. Packing:Metallic Drums. Location:Extreme NorthCameroon. Origin:Cameroon and Congo

• MOQ 5 Kilogram

We wish to confirm with full legal responsibility, under the penalty of perjury, that we are the principle sellers of the material mentioned below with its commodity:coltan (tantalite) being tantalum ta5 o5 quantity:60 mt quality: 38% at 205 product specification: coltan tantalum ta2o5 granules purity 36% non-radioactive material. Packing:metallic drums. Location:extreme northcameroon. Origin:cameroon and congo loading port:douala.

• MOQ 500 Kilogram

Dear sir, we are supplying coltan tanatilte 24%+ origin :cameroon dear sir, we supply you contan-tantalite in bulk quantity if interested please cotnact us. Origin : cameroon

• MOQ 5 Kilogram

We are offering pure coltan ore. tantalum is a heavy, hard gray metal. Pure tantalum is ductile and may be drawn into very fine wire. Tantalum is practically immune to chemical attack at temperatures lower than 150 °c. It is only attacked by hydrofluoric acid, acidic solutions of the fluoride ion, and free sulfur trioxide. Alkalis attack tantalum very slowly. At higher temperatures, tantalum is more reactive. The melting point of tantalum is very high, exceeded only by that of tungsten and rhenium. The melting point of tantalum is 2996 °c; boiling point is 5425 +- 100 °c; specific gravity is 16.654; valence is usually 5, but may be 2, 3, or 4.

• MOQ 500 Kilogram

Tantalum is a heavy, hard gray metal. Pure tantalum is ductile and may be drawn into very fine wire. Tantalum is practically immune to chemical attack at temperatures lower than 150 °C. It is only attacked by hydrofluoric acid, acidic solutions of the fluoride ion, and free sulfur trioxide. Alkalis attack tantalum very slowly. At higher temperatures, tantalum is more reactive. The melting point of tantalum is very high, exceeded only by that of tungsten and rhenium. The melting point of tantalum is 2996 °C; boiling point is 5425 +- 100 °C; specific gravity is 16.654; valence is usually 5, but may be 2, 3, or 4.