| Identification | More | [Name]
AMMONIUM MOLYBDATE | [CAS]
13106-76-8 | [Synonyms]
AMMONIUM MOLYBDATE
DIAMMONIUM MOLYBDATE
(beta-4)-molybdate(moo42-diammonium
ammoniummolybdate((nh4)2moo4)
ammoniummonomolybdate
diammonium,(T-4)-Molybdate
molybdicacid,diammoniumsalt
Molybdate, diammonium, (T-4)-
AMMONIUN MOLYBDATE
AMMONIUM MOLYBDATE, 99.999%
AMMONIUM MOLYBDATE, 99.98%
AMMONIUM MOLYBDATE 99.99+%
Molybdate (MoO42-), diammonium, (T-4)-
( beta-4)-molybdate diammonium
Ammonium molybdate, 99.997% (metals basis)
Molybdic acid bisammonium salt | [EINECS(EC#)]
236-031-3 | [Molecular Formula]
H8MoN2O4 | [MDL Number]
MFCD00011596 | [Molecular Weight]
196.01 | [MOL File]
13106-76-8.mol |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
1
| [RTECS ]
QA4900000
| [TSCA ]
Yes | [HS Code ]
28417010 | [Safety Profile]
Poison by ingestion and
intraperitoneal routes. Moderately toxic by
other routes. An irritant. See also
MOLYBDENUM COMPOUNDS. When
heated to decomposition it emits toxic
fumes of NH3 and NOx. | [Toxicity]
LD50 orl-rat: 333 mg/kg 28ZLA8 -,214,61 |
| Hazard Information | Back Directory | [Potential Exposure]
It is used as an analytical reagent, in
pigments and in the production of molybdenum metal and
ceramics. | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts
the skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from
exposure, begin rescue breathing (using universal precautions,
including resuscitation mask) if breathing has
stopped and CPR if heart action has stopped. Transfer
promptly to a medical facility. When this chemical has
been swallowed, get medical attention. Give large quantities
of water and induce vomiting. Do not make an unconscious
person vomit. | [Shipping]
There are no known UN/DOT restrictions. | [Incompatibilities]
Incompatible with oxidizers (chlorates,
nitrates, peroxides, permanganates, perchlorates, chlorine,
bromine, fluorine, etc.); contact may cause fires or explosions.
Keep away from alkaline materials, strong bases,
strong acids, oxoacids, epoxides; chemically active metals
(such as potassium, sodium, magnesium and zinc) may
cause a violent reaction. | [Chemical Properties]
Ammonium molybdate is a colorless, white or slightly greenish-yellow powder. It is used in chemical analysis for the determination of phosphorus. From a nitric acid solution it precipitates phosphorus in the form of ammonium phosphomolybdate having the formula (NH4)3PO4-12MoO3 after drying at 110 °C(230°F). Some of the phosphomolybdic acids are used as reagents for the alkaloids and in the analysis and separation of the alkali metals. | [Uses]
Ammonium molybdate has been used to prepare phosphomolybdates. (NH4)2MoO4 was used as an analytical reagent for quantitative analysis of phosphates, silicates, arsenates and lead in their aqueous solutions. At saturated concentration, (NH4)2MoO4 was used to perform cryo-negative staining and as a negative stain in biological electron microscopy. Ammonium molybdate was used in study of crystallisation of cell-free-expressed membrane proteins. | [Definition]
ChEBI: Ammonium molybdate is an ammonium salt composed of ammonium and molybdate ions in a 2:1 ratio. It has a role as a poison. It contains a molybdate. | [Production Methods]
Pure molybdic oxide (99.95% MoO3) is prepared by sublimation of technical oxide or by calcining ammonium molybdate. Metallic molybdenum powder is prepared commercially by hydrogen reduction of either pure molybdic oxide or ammonium molybdate in a two-step process. | [General Description]
Ammonium molybdate can be prepared by dissolving molybdenum trioxide in ammonia. | [Flammability and Explosibility]
Notclassified | [Purification Methods]
Crystallise the salt from water (2.5mL/g) by partial evaporation in a desiccator. [Sturdivant J Am Chem Soc 59 630 1937, Grüttner & Jauder in Handbook of Preparative Inorganic Chem (Ed. Brauer) Academic Press Vol II p 1711 1965.] |
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