Name | Ammoniummolybdat |
Synonyms | Ammoniummolybdat Tetraammonium salt ammonium octamolybdate Ammonium octamolybdate Ammoinum octamolybdate Ammoinum Octa molybdate molybdate,tetraammonium Tetraammonium hexamolybdate tetraammonium hexamolybdate Tetraammonium octamolybdate Tetraammonium molybdate(Mo8O264-) Molybdate (Mo8O264-), tetraammonium tetraammonium diketo(dioxido)molybdenum |
CAS | 12411-64-2 |
EINECS | 235-650-6 |
InChI | InChI=1/2Mo.4H3N.8O/h;;4*1H3;;;;;;;;/q;;;;;;;;;;4*-1/p+4/r2MoO4.4H3N/c2*2-1(3,4)5;;;;/h;;4*1H3/q2*-2;;;;/p+4 |
Molecular Formula | MoO4.Mo7O22.4H4N |
Molar Mass | 1255.65 |
Density | 3.18 |
Water Solubility | 1g/L at 20℃ |
Storage Condition | Room Temprature |
Physical and Chemical Properties | Density 3.18 |
Use | Raw materials for dyes, pigments, catalysts, fire retardants, trace element fertilizers, ceramic pigments and other compounds |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
background | ammonium molybdate is not only an important molybdenum chemical product, but also the main raw material for molybdenum powder production. Ammonium molybdate mainly includes two molybdenum, four molybdenum, seven molybdenum, eight molybdenum and ammonium dodecamolybdate. Compared with ammonium dimolybdate and ammonium tetramolybdate, ammonium octamolybdate has gradually attracted people's attention due to its fine particle size and uniform distribution. Its application field has also changed from a simple smoke suppression flame retardant to a raw material for low-temperature reduction production of molybdenum powder. |
application | at present, the research on molybdenum compounds as flame retardant and smoke suppressors is still in its infancy in China. ammonium octamolybdate (AOM) is an inorganic smoke suppressant with excellent performance and has great market potential. it can be used as raw materials for dyes, pigments, catalysts, fire-retardant agents, trace element fertilizers, ceramic pigments and other compounds. |
preparation | CN201010532716.8 provides a preparation method of lanthanum-doped ammonium octamolybdate with fine particle size and uniform distribution as doping object, which can effectively improve the uniformity of dispersed phase after doping. Take 134.3g of ammonium dimolybdate, 160.9g of high purity and 675mL of soft water. Firstly, ammonium dimolybdate and soft water are added into the crystallization tank, heated and stirred at a heating temperature of 80 ℃ and a stirring speed of 80r /min. After dissolution is completed, high purity molybdenum oxide is gradually added to adjust the pH value of the solution to about 4.0. Slowly add 25g/L lanthanum nitrate solution 36mL to the solution, then add the remaining high purity molybdenum dioxide, adjust the pH value to 2.0, heat and stir at 80 ℃ for 10 minutes to replenish water and continue to react for 2 hours, feeding, filtration, drying, drying, drying temperature of 100 ℃, time is 6 hours, that is, the percentage of lanthanum mixed with 0.3% ammonium octamolybdate. |
use | smoke and flame retardant additives for cable industry and building materials industry. Raw materials for dyes, pigments, catalysts, fire retardants, trace element fertilizers, ceramic pigments and other compounds |