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Sodium molybdate has the advantage in that the dosing of lower ppm's of molybdate allow for lower conductivity of the circulating water. Sodium molybdate at levels of 50-100 ppm offer the same levels of corrosion inhibition as sodium nitrite at levels of 800+ ppm. By utilizing lower concentrations of sodium molybdate, conductivity is kept at a ...
Sodium molybdate; Z. Zinc molybdate This page was last edited on 1 November 2023, at 18:23 (UTC). Text is available under the Creative Commons Attribution-ShareAlike ...
In chemistry, a molybdate is a compound containing an oxyanion with molybdenum in its highest oxidation state of +6: O − −Mo(=O) 2 −O −. Molybdenum can form a very large range of such oxyanions , which can be discrete structures or polymeric extended structures, although the latter are only found in the solid state.
Sodium molybdate is a typical source of Mo. Typical soil and foliar application rates are 50–200 g Mo ha −1; recommended rates for seed treatment range from 7–100 g Mo ha −1. [1] Other sources recommend application levels of 0.25 kg/acre.
The first heteropoly molybdate and first heteropolymetallate, yellow ammonium phosphomolybdate, (NH 4) 3 PMo 12 O 40 was discovered by Berzelius in 1826. [4] The phosphorus atom in the anion is termed the heteroatom, other heteroatoms are silicon and arsenic. The heteropoly-molybdenum blues have structures based on the Keggin structure.
Samarium(III) molybdate can be obtained by reacting samarium(III) nitrate and sodium molybdate in the pH range of 5.5~6.0. [2] Its single crystal can be grown at 1085 °C by the Czochralski method. [3] Samarium(III) molybdate can also be prepared by reacting samarium and molybdenum(VI) oxide:
Iron(II) molybdate is prepared by the reaction of iron(II) chloride or iron(II) sulfate [3] and sodium molybdate. Na 2 MoO 4 + FeSO 4 → Na 2 SO 4 + FeMoO 4.
Sprint 138 iron chelate is produced as Na-Fe-EDDHA (C 18 H 16 FeN 2 NaO 6), while Hoagland's original solution formulations contain ferric tartrate (C 12 H 12 Fe 2 O 18), but no sodium ions. [1] [2] [3] Synthesizing a sodium-free ferric EDTA complex (C 10 H 12 FeN 2 O 8 −) in a laboratory is sometimes preferred to buying ready-made products.