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Sodium metavanadate

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Sodium metavanadate Basic information
Sodium metavanadate Chemical Properties
Safety Information
  • Hazard Codes T
  • Risk Statements 25-36/37/38
  • Safety Statements 26-36/37/39-45
  • RIDADR UN 3285 6.1/PG 3
  • WGK Germany 3
  • RTECS YW1050000
  • TSCA Yes
  • HazardClass 6.1
  • PackingGroup II
  • HS Code 28419000
Sodium metavanadate Usage And Synthesis
  • Chemical Propertieswhite to off-white powder
  • Chemical PropertiesSodium vanadate, sodium orthovanadate, Na3VO4, white solid, soluble, formed by fusion of vanadium pentoxide and sodium carbonate. Used (1) in inks, (2) in photography, (3) in dyeing of furs, (4) in inoculation of plant life.
  • UsesVanadium is a metallic element that occurs in six oxidation states and numerous inorganic compounds. Some of the more important compounds are vanadium pentoxide (V2O5), sodium metavanadate (NaVO3), sodium orthovanadate (Na3VO4), vanadyl sulfate (VOSO4), and ammonium vanadate (NH4VO3). Vanadium is used primarily as an alloying agent in steels and non-ferrous metals (ATSDR, 1990). Vanadium compounds are also used as catalysts and in chemical, ceramic or specialty applications.
  • Uses Inks, fur dyeing, photography, inoculation of plant life, mordants and fixers, corrosive inhibitor in gas-scrubbing systems.
  • DefinitionChEBI: An inorganic sodium salt having metavanadate as the counterion.
  • General DescriptionColorless to yellow crystals or cream colored solid. Melting point 630°C.
  • Air & Water ReactionsSoluble in water.
  • Reactivity ProfileSodium metavanadate is a moderately strong oxidizing agent [Cotton and Wilkinson].
  • HazardToxic by ingestion.
  • Health HazardVanadium pentoxide and sodium metavanadate have a toxicity rating of 5, equivalent to a probable lethal oral dose in humans of 5-50 mg/kg (Gosselin et al., 1984). The elemental metallic form is considered to be non-toxic.
    Stokinger et al. (1953) reported that a 10% solution of sodium metavanadate is a primary irritant to human skin. Saturated solutions of ammonium metavanadate (0.5%) and vanadium pentoxide (0.8% solution) did not irritate the skin. Sjoberg (1951) reported that several workers occupationally exposed to vanadium developed what appeared to be a contact dermatitis and that in one case, skin patch tests produced eczematous lesions indicative of an allergic reaction.
    COMMENTS: The NOAEL is derived from a study in which rats were given 0, 5, 10 and 50 ppm sodium metavanadate, in drinking water for 3 months. Impaired kidney function was seen at 50 ppm, and 10 ppm was considered a NOAEL. The Uncertainty Factor of 100 is the product of a 10-fold uncertainty in extrapolating from laboratory animals to humans and a 10-fold uncertainty to protect sensitive individuals.
  • Fire HazardFlash point data of Sodium metavanadate are not available. Sodium metavanadate is probably nonflammable.
  • Safety ProfilePoison by ingestion, intraperitoneal, subcutaneous, and intravenous routes. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of Na2O and VOx. See also VANADIUM COMPOUNDS.
Sodium metavanadate Preparation Products And Raw materials
Sodium metavanadate(13718-26-8)Related Product Information
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