Description References
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Ammonium molybdate tetrahydrate

Description References
Product Name
Ammonium molybdate tetrahydrate
CAS No.
12054-85-2
Chemical Name
Ammonium molybdate tetrahydrate
Synonyms
AMMONIUM HEPTAMOLYBDATE TETRAHYDRATE;HEXAAMMONIUM HEPTAMOLYBDATE TETRAHYDRATE;SOC MEDIA;Ammonium MoL;AmmoniumMolybdateAr;AmmoniumMolybdateGr;ybdate Tetrahydrate;Ammonium molybdate t;AmmoniumMolybdateAcs;AmmoniumMolybdateUsp
CBNumber
CB3122242
Molecular Formula
4MoO3.3H2MoO4.4H2O.6H3N
Formula Weight
1235.85
MOL File
12054-85-2.mol
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Ammonium molybdate tetrahydrate Property

Melting point:
190 °C
Boiling point:
190°C
bulk density
800kg/m3
Density 
2.498 g/mL at 25 °C (lit.)
storage temp. 
Inert atmosphere,Room Temperature
solubility 
H2O: 0.05 M at 20 °C, clear, colorless
form 
Solid
color 
White to yellow-green
Odor
Odorless
PH Range
5 - 5.5
PH
4.0-5.5 (25℃, 0.05M in H2O)
Water Solubility 
400 g/L (20 ºC)
Merck 
14,533
Exposure limits
ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 1000 mg/m3
Stability:
Stable. Incompatible with strong acids, strong oxidizing agents.
CAS DataBase Reference
12054-85-2(CAS DataBase Reference)
EPA Substance Registry System
Molybdate [Mo7O24(6-)], hexaammonium, tetrahydrate (12054-85-2)
Absorption
cut-off at 360nm in H2O at 0.05M
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Safety

Hazard Codes 
Xi,Xn
Risk Statements 
36/37/38-22-20/21/22
Safety Statements 
26-37/39-36/37-36
RIDADR 
3288
WGK Germany 
1
RTECS 
QA5076000
TSCA 
Yes
HS Code 
28417000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
1.01182
Product name
Ammonium heptamolybdate tetrahydrate
Purity
GR for analysis ACS,ISO,Reag. Ph Eur
Packaging
250g
Price
$280
Updated
2024/03/01
Sigma-Aldrich
Product number
1.01182
Product name
Ammonium heptamolybdate tetrahydrate
Purity
GR for analysis ACS,ISO,Reag. Ph Eur
Packaging
1kg
Price
$907
Updated
2024/03/01
Sigma-Aldrich
Product number
1.01182
Product name
Ammonium heptamolybdate tetrahydrate
Purity
GR for analysis ACS,ISO,Reag. Ph Eur
Packaging
5kg
Price
$3630
Updated
2024/03/01
Sigma-Aldrich
Product number
1.01181
Product name
Ammonium heptamolybdate tetrahydrate
Purity
(ammonium molybdate) powder extra pure
Packaging
250g
Price
$271
Updated
2024/03/01
Sigma-Aldrich
Product number
1.01181
Product name
Ammonium heptamolybdate tetrahydrate
Purity
(ammonium molybdate) powder extra pure
Packaging
1kg
Price
$624
Updated
2024/03/01
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Ammonium molybdate tetrahydrate Chemical Properties,Usage,Production

Description

Ammonium molybdate tetrahydrate (also referred to as Ammonium heptamolybdate, chemical formula: (NH4)6Mo7O24)), appearing as a colorless solid. It can be manufactured through dissolving the molybdenum trioxide in excess amount of aqueous ammonia and evaporating the solution at the room temperature. It has many applications, e.g. as an analytic reagent for measuring content of phosphates, silicates, arsenates and lead; for the production of molybdenum metal and ceramics; for the production of dehydrogenation and desulphurization catalysts; for the fixing of metals; for electroplating; supplement in the crop fertilizer; as a negative stain in biological electron microscopy; as an analgesic in medical fields.

References

https://en.wikipedia.org/wiki/Ammonium_heptamolybdate
https://www.alfa.com/zh-cn/catalog/A13766/

Chemical Properties

White, crystalline powder. Soluble in water; insoluble in alcohol. Nonflammable.

Uses

Determination of phosphates, arsenates, and lead.

Uses

Ammonium molybdate tetrahydrate is widely utilized in cryo-negative staining which helps to visualize particles while preserving the sample. It is used as a catalyst to desulfurize thiophene and its derivatives. It serves as an analytical reagent to measure the amount of phosphates, silicates, arsenates and lead in an aqueous solution. It is also used in electroplating, in fertilizers for crops and in the production of molybdenum metal and ceramics. It is used as an analgesic in medical field.

General Description

Ammonium molybdate tetrahydrate (AMT) is a molybdenum salt. Study of its extraction from nickel-molybdenum (Ni–Mo) ore by direct hydrometallurgical method has been reported. Its degradation by combustion to form elemental molybdenum powder using metallic reducers has been investigated.

Hazard

Irritant.

reaction suitability

reagent type: catalyst
core: molybdenum

Toxics Screening Level

The screening level for the elemental molybdenum and insoluble molybdenum compounds is 30 μg/m3, while the screening level for soluble molybdenum compounds is 5 μg/m3 based on an 8 hour averaging time.

Ammonium molybdate tetrahydrate Preparation Products And Raw materials

Raw materials

Molybdenum concentrate Molybdenum trioxide

Preparation Products

desulfurizating hydrogenation Ni-Mo catalysts other desulfurizating hydrogenation catalysts sulphur resistant CO shift catalysts medium temperature Shift catalysts Molybdenum trioxide a new Mo/carbonized resin catalyst Molybdenum disulfide Copper(II) phthalocyanine noncyanide zinc plating additive-TDAE CI NO 77605 Direct Blue 86 Molybdic acid medium(high)temperature Shift catalysts
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View Lastest Price from Ammonium molybdate tetrahydrate manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Molybdic Acid Ammonium Salt Tetrahydrate 12054-85-2
Price
US $70.00/kg
Min. Order
1kg
Purity
99
Supply Ability
5000
Release date
2024-05-24
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Ammonium Molybdate Tetrahydrate 12054-85-2
Price
US $200.00-95.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-04-26
Hebei Saisier Technology Co., LTD
Product
Ammonium molybdate tetrahydrate 12054-85-2
Price
US $6.00-3.00/KG
Min. Order
1KG
Purity
More than 99%
Supply Ability
2000KG/Month
Release date
2024-04-03

12054-85-2, Ammonium molybdate tetrahydrateRelated Search:

Ammonium molybdate Ammonium hydroxide Ammonium citrate tribasic Molybdenum Molybdic acid Ammonium sulfate Sodium molybdate Ammonium acetate Ammonium chloride allyltrimethylammonium chloride Sodium molybdate dihydrate Barium molybdate ZINC MOLYBDATE AMMONIUM Ammonium nitrate AMMONIUM PHOSPHOMOLYBDATE HYDRATE Hexaammonium molybdate AMMONIUM MOLYBDATE,AMMONIUM MOLYBDATE (DI),AMMONIUM MOLYBDATE REAGENT,AMMONIUM MOLYBDATE TS Ammonium Heptamolybdate Tetrahydrate

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