If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
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For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
431346
Ammonium molybdate tetrahydrate
ACS reagent, 99.98% trace metals basis
Synonym(s):
Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
50 g | Available to ship TODAYfromMILWAUKEE | $232.00 |
250 g | Available to ship TODAYfromMILWAUKEE | $747.00 |
About This Item
grade
ACS reagent
Quality Segment
agency
suitable for SM 5210
description
for inorganic trace analysis
assay
81.0-83.0% MoO3 basis, 99.98% trace metals basis
form
powder
reaction suitability
reagent type: catalyst
core: molybdenum
impurities
≤0.005% insolubles
density
2.498 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.002%, nitrate (NO3-): passes test, phosphate (PO43-): ≤5 ppm, sulfate (SO42-): ≤0.02%
cation traces
Mg and allied cations: ≤0.01%, heavy metals: ≤0.001% (as lead)
SMILES string
N.N.N.N.N.N.O.O.O.O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O
InChI
1S/7Mo.6H3N.10H2O.18O/h;;;;;;;6*1H3;10*1H2;;;;;;;;;;;;;;;;;;/q;;;;3*+2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/p-6
InChI key
FIXLYHHVMHXSCP-UHFFFAOYSA-H
General description
Application
- As a precursor in the generation of calcium molybdate (CaMoO4) spherulites.
- Synthesis of porous carbon-supported molybdenum dioxide (MoO2).
- Preparation of Iodine-iodide-molybdate solution to determine glucose level by glucose oxidase method.
- Preparation of polymer bulk heterojunction solar cells.
- As a precursor in the synthesis of Mo-N-codoped TiO2 (titanium dioxide).
- Synthesis of MoBi2S5 (molybdenum bismuth sulphide) thin films.
Reagent used for oxidation of sulfides to sulfonyls.
Features and Benefits
1 of 1
This Item | |||
|---|---|---|---|
| reaction suitability reagent type: catalyst | reaction suitability reagent type: catalyst | reaction suitability reagent type: catalyst | reaction suitability - |
| assay 81.0-83.0% MoO3 basis, 99.98% trace metals basis | assay 81.0-83.0% MoO3 basis | assay ≥99.0% | assay 81.0-83.0% MoO3 basis |
| Quality Level 200 | Quality Level 300 | Quality Level - | Quality Level 200 |
| density 2.498 g/mL at 25 °C (lit.) | density 2.498 g/mL at 25 °C (lit.) | density 2.498 g/mL at 25 °C (lit.) | density 2.498 g/mL at 25 °C (lit.) |
| cation traces Mg and allied cations: ≤0.01%, heavy metals: ≤0.001% (as lead) | cation traces Mg: ≤0.005%, heavy metals: ≤0.001% (as lead) | cation traces - | cation traces - |
| agency suitable for SM 5210 | agency suitable for SM 5210 | agency - | agency - |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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