Vanadium inorganic compounds

Vanadium is a metallic element. Despite forming complexes with organic matter, it is generally not incorporated into organic compounds. Thus transformation occurs primarily between various inorganic compounds during its movement through the environment, and biotransformation is not considered to be an important environmental fate process. 

Seiler HG, Sigel H, ed. 1988. Handbook on toxicity of inorganic compounds. Chapter 69. Vanadium. New York Marcel Dekker, Inc. 

Simple inorganic vanadium(V) compounds are reduced by thiolates such as cysteine and cysteinemethyl ester (CysMe) to VO +. Further reduction to V by CysMe is achieved on addition of H2(edta) , which stabilises the state by formation of [V (edta)H20]. For this reduction to occur it is cmcial that less than 1 equivalent of edta is employed, apparently in order to provide a site of direct interaction between VO + and the thiol function. CysMe is oxidised to cystine. Cysteine does not reduce... 

Wennig R and Kirsch N (1988) Vanadium. In Seiler HG, Sigel H and Sigel A, eds. Handbook on the Toxicity of Inorganic Compounds, pp. 749-765. Marcel Dekker New York. 

Many important industrial chemicals are classified as harmful, e.g., the organic compounds toluene, glycols, cyclohexanol, benzyl alcohol, benzaldehyde, maleic anhydride, isobutyric acid, the inorganic compounds iodine, brownstone (manganese dioxide), dimercury dichloride (calomel), vanadium pentoxide, and many compounds of copper and cobalt (see Fig. 3.4). 

Types ammonium octamolybdate, molybdenum trioxide, vanadium oxide, zirconium oxychloride, and inorganic compounds listed as flame retardants... 

The transition metal carbides and nitrides have often been called interstitial compounds [70] however, this is somewhat misleading. The small boron, carbon, or nitrogen atoms certainly occupy octahedral or trigonal prismatic voids of the metal sublattice, but the arrangement of the metal atoms themselves is different from that of the element. In the monocarbides the transition metal atoms show cubic close packing. However, titanium, zirconium, and hafnium are packed hexagonally and vanadium, niobium, and tantalum are body centered cubic [1]. Thus, these monocarbides are inorganic compounds with their individual crystal structures and they should not be considered as an interstitial compound of a transition metal host lattice. 

Three general classes of vanadium-containing compounds are of interest for their utility as insulin-mimetic agents (1) inorganic vanadium salts, both anionic (vanadates [V04] ) and cationic (vanadyl VO +) (2) complexes resulting from combination of vanadium(V) and hydrogen peroxide(s) (mono- and di-peroxovanadates, [V0(02 )(H2O)2(L-0f ( =0,1,2) and [V0(02)2 (L-Oj ( = 1,2, 3, and L = e.g., bipyridil, oxalate, phenanthroline, picoli-nate), and (3) chelated vanadium(IV) complexes (Scheme 5.8) [160], Vanadyl,... 

The use of inorganic compounds containing vanadium or germanium as a part of chemical ingredients in plating baths enhances the quahty of deposited copper. Most fuU-build electroless baths used today contain either V2O5 or G2O5 to improve the physical properties of deposited copper. 

Vanadium is a metallic element that occurs in six oxidation states and numerous inorganic compounds. Some of the... 

Many metals occur in crude oils. Some of the more abundant are sodium, calcium, magnesium, aluminium, iron, vanadium, and nickel. They are present either as inorganic salts, such as sodium and magnesium chlorides, or in the form of organometallic compounds, such as those of nickel and vanadium (as in porphyrins). Calcium and magnesium can form salts or soaps with carboxylic acids. These compounds act as emulsifiers, and their presence is undesirable. 

Vanadium pentoxide and other inorganic vanadium compounds (No. 29, 2001)... 

Costigan, M., Cary, R. and Dobson, S. (2001) Vanadium Pentoxide and Other Inorganic Vanadium Compounds, Concise International Chemical Assessment Document 29, World Health Organization, Geneva, Switzerland. 

The effect of inorganic additives upon ignition delay in anilinium nitrate-red finning nitric acid systems was examined. The insoluble compounds copper(I) chloride, potassium permanganate, sodium pentacyanonitrosylferrate and vanadium(V) oxide were moderately effective promoters, while the soluble ammonium or sodium metavanadates were very effective, producing vigorous ignition. 

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