వనాడియం

About Vanadium Metal & మిశ్రమాలు

Vanadium is a soft, మెరిసే, silvery metal and its elemental form, vanadium has a bluish-silver appearance. Vanadium is found in 65 different minerals as well as phosphate rock, certain iron ores, some crude oils (in the form of complexes) and meteorites. Some of the more important minerals in which vanadium is found include carnotite, roscoelite, vanadinite and patronite. అయితే ప్రకృతిలో వెనాడియం ఉచితంగా లభించదు, ఒకసారి వేరుచేయబడిన తర్వాత అది ఆక్సైడ్ పొరను ఏర్పరుస్తుంది, ఇది మరింత ఆక్సీకరణకు వ్యతిరేకంగా ఉచిత లోహాన్ని స్థిరీకరిస్తుంది

స్వచ్ఛమైన వనాడియం దాని ఉపరితలంపై రక్షిత ఆక్సైడ్ ఫిల్మ్ ఏర్పడటం వల్ల తుప్పును నిరోధిస్తుంది; ఇది సాంద్రీకృత ఆమ్లాలచే దాడి చేయబడుతుంది కానీ ఫ్యూజ్డ్ ఆల్కాలిస్ ద్వారా కాదు. The principal use for vanadium is as an alloying constituent, particularly in steels where it is introduced as ferrovanadium, an alloy of iron and vanadium. The addition of vanadium to steels removes occluded oxygen and nitrogen, thus improving the materials’ strength.

It is a hard, ductile transition metal that is primarily used as a steel additive and in alloys such as Titanium-6AL-4V, which is composed of titanium, అల్యూమినియం, and vanadium and is the most common titanium alloy commercially produced. వనాడియం (atomic symbol: V, atomic number: 23) is a Block D, Group 5, Period 4 element with an atomic weight of 50.9415. Vanadium was discovered by Andres Manuel del Rio in 1801 and first isolated by Nils Gabriel Sefström in 1830. Vanadium was named after the word “Vanadis” meaning goddess of beauty in Scandinavian mythology. Commercially, vanadium is produced by reducing vanadium trichloride with magnesium metal or a mixture of magnesium and sodium or via the calcium reduction of V2O5 in a pressure vessel.

గమనిక: Vanadium is toxic, and care is required when handling vanadium and its compounds.