Diammonium dimolybdate

Structural formula
	No drawing available
General
Surname	Diammonium dimolybdate
other names	Ammonium dimolybdate
Molecular formula	H 8 Mo 2 N 2 O 7
Brief description	white solid
External identifiers / databases
EC number	248-517-2
ECHA InfoCard	100.044.092
PubChem	21895884
Wikidata	Q20658352
properties
Molar mass	339.95 g mol −1
Physical state	firmly
density	2.97 g cm −3
solubility	Easily soluble in water (228.4 g l −1 at 20 ° C)
safety instructions
GHS labeling of hazardous substances	no GHS pictograms
	no GHS pictograms
H and P phrases	H: no H-phrases
	P: no P-phrases
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Diammonium dimolybdate is an inorganic chemical compound from the group of ammonium salts and molybdates .

Extraction and presentation

Diammonium dimolybdate can be obtained by reacting molybdenum trioxide with ammonia .

properties

Diammonium dimolybdate is a white solid that is easily soluble in water. It decomposes when heated above 150 ° C. It has a triclinic crystal structure with space group P 1 (space group no. 2) . Template: room group / 2

use

Diammonium dimolybdate is used as a pigment, fertilizer, and fire retardant for fabrics. It is also used as a raw material for the production of molybdenum , ceramic glazes and other molybdenum compounds. In addition, it is used in photography, ceramics, and paints. It is also used as a reagent for analysis as well as for the determination of phosphorus in analytical chemistry and as a catalyst in the petrochemical industry.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Entry on diammonium dimolybdate in the GESTIS substance database of the IFA , accessed on March 4, 2019(JavaScript required) .
↑ Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 1995, ISBN 978-0-8493-8671-8 , pp. 22 ( limited preview in Google Book search).
↑ R. Blachnik: Pocket book for chemists and physicists Volume 3: Elements, inorganic compounds and materials, minerals . Springer-Verlag, 2013, ISBN 978-3-642-58842-6 , pp. 590 ( limited preview in Google Book search).
↑ Data sheet Ammonium molybdate (di), Mo 56.5% from AlfaAesar, accessed on March 4, 2019 ( PDF )(JavaScript required) .

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g Entry on diammonium dimolybdate in the GESTIS substance database of the IFA , accessed on March 4, 2019(JavaScript required) .

[Dale_L._Perry-2] Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 1995, ISBN 978-0-8493-8671-8 , pp. 22 ( limited preview in Google Book search).

[R._Blachnik-3] R. Blachnik: Pocket book for chemists and physicists Volume 3: Elements, inorganic compounds and materials, minerals . Springer-Verlag, 2013, ISBN 978-3-642-58842-6 , pp. 590 ( limited preview in Google Book search).

[Alfa-4] Data sheet Ammonium molybdate (di), Mo 56.5% from AlfaAesar, accessed on March 4, 2019 ( PDF )(JavaScript required) .