Niobium compounds and hydrates thereof, formulations containing the same, and methods of providing specifications therefor
View Patent ↗A niobium compound, ammonium(bisaquo oxobisoxalato)niobate (NH 4 )[Nb(O)(C 2 O 4 ) 2 (H 2 O) 2 ] and hydrates thereof, is described along with formulations containing the same and methods for creating a product specification for a batch, lot, or shipment of such compounds, comprising specifying at least one property value for said batch, lot, or shipment.
1. A formulation comprising one or more of ammonium(bisaquo oxobisoxalato)niobate (NH 4 )[Nb(O)(C 2 O 4 ) 2 (H 2 O) 2 ] and hydrates thereof, together with at least one further ingredient selected from the group consisting of adjuvant, emulgator, antimicrobial, a watersoluble bag, a watersoluble polymer, polyvinyl alcohol, oxalic acid, ammonium oxalate.
2. A formulation according to claim 1 , the formulation comprising a saturated solution of the compound in water or an aqueous slurry thereof.
3. A formulation according to claim 1 , said formulation being a pressed shaped particle.
4. Formulation according to claim 3 , the shaped particle having a cylindrical or spherical shape.
5. Formulation according to claim 3 consisting essentially of one or more of the ammonium(bisaquo oxobisoxalato)niobate (NH 4 )[Nb(O)(C 2 O 4 ) 2 (H 2 O) 2 ] and hydrates thereof.
6. Formulation according to claim 3 , said formulation comprising the compound and at least one additive, adjuvant, auxiliary, mold release agent, lubricant or combinations thereof.
7. Formulation according to claim 6 , said formulation comprising at least one carbonate.
8. Formulation according to claim 7 , said formulation comprising a carbonate and a solid acidic compound.
9. Formulation according to claim 8 , the carbonate being ammonium carbonate and the solid acidic compound being oxalic acid.