Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature (often in combination with iron), and in many minerals. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.
Historically, manganese is named for various black minerals (such as pyrolusite) from the same region of Magnesia in Greece which gave names to similar-sounding magnesium, Mg, and magnetite, an ore of the element iron, Fe. By the mid-18th century, Swedish chemist Carl Wilhelm Scheelehad used pyrolusite to produce chlorine. Scheele and others were aware that pyrolusite (now known to be manganese dioxide) contained a new element, but they were not able to isolate it. Johan Gottlieb Gahn was the first to isolate an impure sample of manganese metal in 1774, byreducing the dioxide with carbon.
Manganese phosphating is used as a treatment for rust and corrosion prevention on steel. Depending on their oxidation state, manganese ionshave various colors and are used industrially as pigments. The permanganates of alkali and alkaline earth metals are powerful oxidizers. Manganese dioxide is used as the cathode (electron acceptor) material in zinc-carbon and alkaline batteries.
In biology, manganese(II) ions function as cofactors for a large variety of enzymes with many functions.[1] Manganese enzymes are particularly essential in detoxification of superoxide free radicals in organisms that must deal with elemental oxygen. Manganese also functions in the oxygen-evolving complex of photosynthetic plants. The element is a required trace mineral for all known living organisms. In larger amounts, and apparently with far greater activity by inhalation, it can cause a poisoning syndrome in mammals, with neurological damage which is sometimes irreversible.
We are exporter of Manganese Ores. Manganese Ore from lower grade 40 % to 50% is available. The Manganese Ore superior grade available with us is black in color, have excellent hardness, and possesses balanced chemical composition. Thus, our Manganese Ore is pure and is widely required in varied industrial applications.
Commodity 1 provides Manganese ore directly from the mine site to the global market. There are no middlemen involved, only our staff on the ground. We strive to organize smooth and transparent transactions. We believe in building long-term relationships with our customers. We aim to be our customers Manganese ore supplier. We offer the best prices for our buyers. PACKAGING & DELIVERY Packaging Details: LUMS/Chips Port: Lagos Apapa Port, Nigeria Bags: 50 kg Container: 20 ft Lead time: Quantity (metric tons) 20 MT/Month 1000MT/Month (Lead days) 30 Days 30 Days A shipload of Manganese is available every four months. CHEMICAL COMPOSITION ANALYSIS OF MANGANESE ORE Element Percentage Manganese 40.20% Iron 24.10% Silicon 15.00% Oxygen 15.00% Carbon 3.80% Aluminum 0.80% Calcium 0.40% Magnesium 0.30% Phosphorus 0.10% Sulfur 0.10% Zinc 0.10% Manganese ore composition varies slightly based on the source and what region of Nigeria it is collected. We encourage buyers to ask for a free sample for their composition analysis and evaluation of ready-to-ship material. Samples are free, but buyers should arrange with a courier service of their choice to pick up a free sample.
-Product Detailed Description: " Chemical analysis Item High Grade Fine Manganese PCT Mn 25.00 Min Fe 25.00 Max SiO 15.00 Max Al O 5.00 Max CaO 2.00 Max MgO 1.00 Max P 0.40 Max Size Specifications: Item High Grade Fine Manganese PCT Above 6.3 mm 15 Max From 0.0 To 6.3 mm 85 Min Item High Grade Fine Manganese PCT From 0 To 15 cm 90 Min " Minimum Order Qty : 50 tons Units : Tons Packaging Details : "Jumbo bags small bags " Capacity : "Jumbo bags: 1.25-1.5 Ton small bags 25 or 50 kg bags" Seller Product Code : Code: MRC MO
we can supply manganese ore with Mn 24% to 50% in lumpy form with size 10-150mm around 80% minimum from Zambia & Kenya
Manganese Ore : Grade : 30% minimum Packaging Size : 10mm to 100mm Packaging Type : 50kg Minimum Order Quantity : 200 Metric Ton
We are the products direct end sellers and the goods come from our direct mining sources from more than 10 African countries. Buyer and seller agree on price and other terms and sign contract. Buyer shall submit POF or BCL . Inquire within by issuing LOI from the Buyer. No exceptions.
Manganese Ore 42%-44%, from Brazil, in bulk, video and pictures available, quantity 30.000 mt/month
With Mn more than 40%.