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Ammonium dimolybdate

Similarly, ammonium dimolybdate, (NH4)2Mo20t, crystallizes when aqueous solutions of M0O3 containing excess ammonia are evaporated at 100°C. Crystallization at low temperatures, however, forms ammonium heptamolyb-date, (NH4)eMo7024 4H2O, instead of dimolybdate. [Pg.594]

In the disproportionation (metathesis) of olefins, i.e. the reaction 2Ri-CH=CH-R2 a R1-CH=CH-R1 + R2-CH=CH-R2, a M0O3/ AI2O3 catalyst is often applied. Its preparation involves impregnation of Y-AI2O3 extrudates with an aqueous solution of ammonium heptamolybdate (AHM) or an ammoniacal solution of ammonium dimolybdate (ADM). [Pg.346]

Ammonium Dimolybdate, (NH4)2Mo.j07.H20, exists as mono-clinic (prismatic) crystals. A compound (NH4).2Mo20,.3NH2 has been prepared by addition of ammonium hydroxide of medium strength to solid ammonium phosphomolybdate. This substance loses ammonia, yielding the dimolybdate. [Pg.138]

MMP highest purity powder produced from ammonium dimolybdate and it is hydrogen reduced and agglomerated, deagglomerated powders are also available... [Pg.116]

Moiyhibit 240LS. See Potassium molybdate Moiyhibit 340. See Lithium molybdate Moiyhibit ADM. See Ammonium dimolybdate Moiyhibit POM. See Molybdenum trioxide Moiy-White 92, Moiy-White 101 ED-Pius, Moiy-White 101, Moiy-White 151. See Zinc, molybdate... [Pg.2727]

Ammonium dimolybdate corrosion inhibitor, vapor-phase Dicyclohexylamine nitrite 2-Dimethylamino-2-methyl-1-propanol corrosion inhibitor, waterfloods Cocodiamine acetate Etidronic acid corrosion inhibitor, water systems Acrylic resin Hydrazine corrosion inhibitor, water treatment Ammonium dimolybdate Calcium oxide Etidronic acid Lauramine 2-Mercaptobenzothiazole Myristamine Myristamine acetate PEG-8 dioleate PEG-3 tallow aminopropylamine PEG-8 tallow aminopropylamine Potassium phosphate Potassium thiocyanate Potassium tripolyphosphate Sodium chromate Sodium molybdate dihydrate... [Pg.5023]

Ammonium dimolybdate Molyhibit ADM 231-971-0 Sodium amide 231-973-1 Sulfurous acid 231-974-7 Selenious acid 231-975-2 Tungstic acid 231-977-3 Hydrogen sulfide... [Pg.6876]

Molybdenum FR Any of several molybdenum compounds, such as the oxide or ammonium dimolybdate (NH2)2Mo207, added to plastics to improve their fire retardancy (FR) and smoke suppression. [Pg.633]

The diammonium-rich molybdate liquor is filtered to remove insoluble silica and iron hydroxides and then further purified by sparging hydrogen sulfide H S to precipitate copper as insoluble copper sulfide. Then the purified solution is crystallized by evaporation to yield crystals of ammonium dimolybdate [(NH,)2Mo20,], also known commercially under the acronym ADM, according to the following reaction ... [Pg.374]

See other pages where Ammonium dimolybdate is mentioned: [Pg.49]    [Pg.463]    [Pg.80]    [Pg.49]    [Pg.1039]    [Pg.131]    [Pg.1009]    [Pg.697]    [Pg.689]    [Pg.123]    [Pg.257]    [Pg.6252]    [Pg.335]    [Pg.375]    [Pg.375]    [Pg.19]    [Pg.19]    [Pg.11]    [Pg.771]    [Pg.735]    [Pg.769]    [Pg.689]   
See also in sourсe #XX -- [ Pg.2 , Pg.586 ]

See also in sourсe #XX -- [ Pg.138 ]

See also in sourсe #XX -- [ Pg.374 ]



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Dimolybdates

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