21. Vanadium occurs naturally in about 65 different minerals and in fossil fuel deposits.22. Vanadium compounds are poorly absorbed through the gastrointestinal system.23. Vanadium , for example, would become much less radioactive than stainless steel.24. The front axle was drop forged as a single piece of vanadium steel. 25. Reduction of vanadium pentoxide with calcium gives pure vanadium. 26. Reduction of vanadium pentoxide with calcium gives pure vanadium . 27. Copper, titanium, vanadium , and niobium are added for strengthening purposes. 28. Vanadium -gallium is another material used for the high-field inserts.29. This structure has 5-coordinate square-pyramidal vanadium units linked together. 30. The most commonly used ceramic material in IR radiation microbolometers is vanadium oxide.
