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Vanadium Suppliers list
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Products Intro: Product Name:VANADIUM
Purity:99% Package:100g,500g,1kg,5kg,10kg
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: CAS:7440-62-2
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Products Intro: Product Name:VANADIUM
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 86-155-27864001
Products Intro: Product Name:vanadium atom
Purity:99% Package:5KG;1KG Remarks:V
Company Name: Rush Metal  Gold
Tel: 021-60516075
Products Intro: Product Name:Vanadium Wire/Φ0.5mm/ 99.9+%
Purity:99.9+% Package:12700RMB/5m Remarks:V103
Vanadium Basic information
History, Occurrence, and Uses Reactions
Product Name:Vanadium
Synonyms:Vanadium rod, 12.7mm (0.5 in.) dia.;Vanadium slug, 3.175mm (0.125 in.) dia. x 3.175mm (0.125 in.) length;Vanadium wire, 1.0mm (0.04 in.) dia., Stress relieved;Vanadium foil, 0.075mm (0.003 in.) thick;Vanadium wire, 0.127mm (0.005 in.) dia.;Vanadium wire, 0.5mm (0.02 in.) dia.;VANADIUM 99.9%;Vanadiumfoil(99.5%)
Product Categories:Inorganics;Metal and Ceramic Science;Metals;Vanadium;metal or element
Mol File:7440-62-2.mol
Vanadium Structure
Vanadium Chemical Properties
Melting point 1890 °C(lit.)
Boiling point 3380 °C(lit.)
density 6.11 g/mL at 25 °C(lit.)
vapor pressure 8 mm Hg ( 20 °C)
storage temp. Storage temperature: no restrictions.
solubility H2O: soluble
form turnings
color Silver-gray
Specific Gravity6.11
resistivity24.8-26.0 μΩ-cm, 20°C
Water Solubility insoluble H2O; reacts with hot H2SO4, HF, HNO3, aqua regia [MER06]
Merck 13,9984
Stability:Stable. Incompatible with strong acids, strong oxidizing agents.
CAS DataBase Reference7440-62-2(CAS DataBase Reference)
Safety Information
Hazard Codes Xi,T+,N,Xn
Risk Statements 36/38-36/37/38-34-26-22-50-20
Safety Statements 26-36-45-7-36/37/39-28-61
RIDADR UN 3289 6.1/PG 2
WGK Germany 3
RTECS YW1355000
HS Code 8112 92 91
HazardClass 4.1
PackingGroup II
ToxicityLD50 orally in Rabbit: > 2000 mg/kg
MSDS Information
SigmaAldrich English
ACROS English
ALFA English
Vanadium Usage And Synthesis
History, Occurrence, and UsesVanadium was discovered in 1801 by Mexican mineralogist Manuel del Rio in a lead ore in Hidalgo, Mexico. He named it erythronium because of the red color its salts when heated with acids. However, del Rio’s discovery was mistakenly thought at that time to be a form of impure chromium. Swedish chemist Sefstrom in 1830 rediscovered this element detecting an unknown metal in the iron ores of Taberg, Sweden. He named it vanadium after the Scandinavian goddess Vanadis. Later in 1830, Wohler determined that del Rio’s erythronium and Sefstrom’s vanadium were the same element. Vanadium metal was prepared for the first time by Roscoe in 1867 in somewhat impure form, as a silvery-white powder, by reduction of vanadium chloride, VCl2, with hydrogen. Hunter and Jones in 1923 prepared the metal at 99.5% purity as a fine gray powder by thermal reduction of vanadium trichloride with sodium in a steel bomb.
Vanadium is added to steel for high resistance to oxidation and to stabilize carbide. Vanadium foil is used for cladding titanium to steel. Vanadium-gallium alloy is used in making superconductive magnets. An important compound of vanadium is pentoxide which has many commercial uses (See Vanadium Pentoxide).
ReactionsVanadium forms four oxides: the light grey monoxide, VO or (V2O2); the blue black dioxide, VO2 (or V2O4); the black sesquioxide, V2O3; and the orangered pentoxide, V2O5. The oxides are formed when the metal is heated in air or oxygen. Vanadium combines with chlorine on heating. Three chlorides are known: the green dichloride, VCl2; the pink trichloride, VCl3; and the brownred tetrachloride, VCl4. The more stable tetrachloride is formed when the metal is heated with chlorine at 180°C. The metal also forms three fluorides in valence states +3, +4, and +5. They are the green trifluoride, VF3; a yellowishbrown tetrafluoride, VF4, and the white pentafluoride, VF5. When heated with bromine vapor vanadium forms the green-black tribromide, VBr3. Vanadium forms two iodides, a violet-rose diiodide, VI2, and a deliquescent triiodide, VI3.
Vanadium combines with other nonmetals at elevated temperatures forming binary compounds. Such compounds include nitride, VN; carbide VC, and the sulfides, VS (or V2S2), V2S3, and V2S5.
Vanadium reacts with fused caustic soda and caustic potash to form water soluble vanadates with liberation of hydrogen. The metal, however, is stable in alkaline solutions.
Chemical PropertiesVanadium is a light-gray or silver-white, ductile solid, lustrous powder, or fused hard lump.
Chemical PropertiesSilvery-white ductile solid. Insoluble in water; resistant to corrosion, but soluble in nitric, hydrofluoric, and concentrated sulfuric acids; attacked by alkali, forming water-soluble vanadates. Acts as either a metal or a nonmetal and forms a variety of complex compounds.
Chemical PropertiesVanadium is a soft, ductile, silver-gray metal. It has good resistance to corrosion by alkalis, sulfuric and hydrochloric acid, and salt water. Vanadium metal, sheet, strip, foil, bar, wire, and tubing are used in industries. It is used in high-temperature service, in the production of rust-resistant, high-speed tools, and is an important carbide stabilizer in making steels. In fact, most vanadium is used as an additive to improve steels. Vanadium steel is especially strong and hard, with improved resistance to shock. Vanadium pentoxide (V2O5) is perhaps vanadium’s most useful compound. It is used as a mordant—a material that permanently fi xes dyes to fabrics. Vanadium pentoxide is used as a catalyst in chemical reactions and in the manufacture of ceramics. Vanadium pentoxide can also be mixed with gallium to form superconductive magnets.
HistoryVanadium was first discovered by del Rio in 1801. Unfortunately, a French chemist incorrectly declared that del Rio’s new element was only impure chromium; del Rio thought himself to be mistaken and accepted the French chemist’s statement. The element was rediscovered in 1830 by Sefstrom, who named the element in honor of the Scandinavian goddess Vanadis because of its beautiful multicolored compounds. It was isolated in nearly pure form by Roscoe, in 1867, who reduced the chloride with hydrogen. Vanadium of 99.3 to 99.8% purity was not produced until 1927. Vanadium is found in about 65 different minerals among which carnotite, roscoelite, vanadinite, and patronite are important sources of the metal. Vanadium is also found in phosphate rock and certain iron ores, and is present in some crude oils in the form of organic complexes. It is also found in small percentages in meteorites. Commercial production from petroleum ash holds promise as an important source of the element. China, South Africa, and Russia supply much of the world’s vanadium ores. High-purity ductile vanadium can be obtained by reduction of vanadium trichloride with magnesium or with magnesium–sodium mixtures. Much of the vanadium metal being produced is now made by calcium reduction of V2O5 in a pressure vessel, an adaptation of a process developed by McKechnie and Seybolt. Natural vanadium is a mixture of two isotopes, 50V (0.25%) and 51V (99.75%). 50V is slightly radioactive, having a long half-life. Twenty other unstable isotopes are recognized. Pure vanadium is a bright white metal, and is soft and ductile. It has good corrosion resistance to alkalis, sulfuric and hydrochloric acid, and salt water, but the metal oxidizes readily above 660°C. The metal has good structural strength and a low-fission neutron cross section, making it useful in nuclear applications. Vanadium is used in producing rust-resistant, spring, and high-speed tool steels. It is an important carbide stabilizer in making steels. About 80% of the vanadium now produced is used as ferrovanadium or as a steel additive. Vanadium foil is used as a bonding agent in cladding titanium to steel. Vanadium pentoxide is used in ceramics and as a catalyst. It is also used in producing a superconductive magnet with a field of 175,000 gauss. Vanadium and its compounds are toxic and should be handled with care. Ductile vanadium is commercially available. Vanadium metal (99.7%) costs about $3/g.
UsesAlloying agent in manufacture of rust-resistant vanadium steel.
Air & Water ReactionsNot oxidized by air and not appreciably affected by moisture at ordinary temperatures. Some hydrogen gas may be created however this would proceed slowly under ambient conditions. Insoluble in water.
Reactivity ProfileVANADIUM is a reducing agent. Finely divided form favors rapid or explosive reactions with oxidizing agents such as air or oxygen. Reacts exothermically with compounds having active hydrogen atoms (such as acids and water) to form flammable hydrogen gas and caustic products. The reactions are much less vigorous than the similar reactions of alkali metals. Can catalyze polymerization reactions in several classes of organic compounds; these polymerizations sometimes proceed rapidly or even explosively. Vanadium is used as a catalyst in the production of synthetic rubber and sulfuric acid.
Health HazardExposures to high levels of vanadium cause harmful health effects. The major effects from breathing high levels of vanadium are on the lungs, throat, and eyes. Workers who breathe vanadium for short and long periods show lung irritation, coughing, wheezing, chest pain, runny nose, and sore throat. Prolonged period of exposures to respirable dusts and vanadium fume have caused potential symptoms of toxicity among occupational workers. The symptoms of poisoning include, but are not limited to, irritation of the eyes and throat, green tongue, metallic taste, sore throat, cough, drowsiness, wheezing, bronchitis, abdominal cramps, nausea, vomiting, diarrhea, respiratory distress, pulmonary edema, bronchial damage, epistaxis (bloody nose), eczema, conjunctivitis, headache, dry mouth, dizziness, nervousness, insomnia, and tremor. It is not classifi able as a human carcinogen. Vanadium is a natural component of fuel oil, and workers have developed vanadium poisoning during cleaning operations on oil-fi red furnaces.
Agricultural UsesVanadium (V) is a silvery-white, metallic, transition element of Group 5 of the Periodic Table and exhibits a range of valencies from +2 to +5. The ores containing vanadium include vanadite and carnotite. The pure metal, formed by the reduction of vanadium oxide with calcium, is generally used as an alloying element for steel and iron. Several vanadium compounds are used as oxidation catalysts. They are also used as coloring agents in the ceramic industry.
Vanadium comes under the category of beneficial elements which are non-essential but beneficial to plant growth. It is a very useful nutrient for the green alga Scenedesmus, but the exact amount of vanadium needed for the growth of higher plants is yet to be established.
Vanadium may replace molybdenum to some extent in nitrogen fixation by micro-organisms such as Azotobacter and Rhizobium. An increase in growth due to vanadium is seen in asparagus, rice, lettuce, barley and corn. It has also been speculated that vanadium may function in biological oxidation-reduction reactions.
Vanadium stimulates growth and nitrogenase activity in Anabaena variabilis in the absence of molybdenum. Low concentrations of vanadium are beneficial for the optimal growth of micro-organisms and higher plants. Generally, the concentration of vanadium in plants is about 1 ppm.
Safety ProfileAn inhalation hazard. Poison by subcutaneous route. Questionable carcinogen with experimental tumorigenic data. Flammable in dust form from heat, flame, or sparks. Violent reaction with BrF3, Cl2, lithium, nitryl fluoride, oxidants. When heated to decomposition it emits toxic fumes of VOx. See also VANADIUM COMPOUNDS.
Potential ExposureVanadium is used as a catalyst in the production of synthetic rubber and sulfuric acid. Most of the vanadium produced is used in ferrovanadium and of this the majority is used in high speed and other alloy steels with only small amounts in tool or structural steels. It is usually combined with chromium, nickel, manganese, boron, and tungsten in steel alloys.
First aidIf this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit
ShippingUN3285 Vanadium compound, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. This number includes vanadium fume or dust.
Purification MethodsClean the metal by rapid exposure consecutively to HNO3, HCl, HF, de-ionised water and reagent grade acetone, then dry it in a vacuum desiccator. [Brauer in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II pp 1252-1255 1965.]
IncompatibilitiesDust may form explosive mixture with air. Dust, fume, and powders are a strong reducing agent; incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, bromine trifluoride, lithium, nitryl fluoride, chlorine trifluoride.
Vanadium Preparation Products And Raw materials
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