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.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
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
A1343
Ammonium molybdate
meets USP testing specifications
Synonym(s):
Ammonium molybdate tetrahydrate, Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 g | Check Cart for Availability | $246.00 |
500 g | Check Cart for Availability | $990.00 $841.50 |
About This Item
Quality Segment
agency
USP/NF, meets USP testing specifications
assay
99.3-101.8% %
form
crystals
solubility
water: soluble 206.5 g/L at 20 °C
density
2.498 g/mL at 25 °C (lit.)
application(s)
pharmaceutical (small molecule)
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
Application
- Photochromic hydrogels for electronic applications: Ammonium molybdate was utilized in the synthesis of a polyacrylamide/sodium alginate/sodium chloride photochromic hydrogel. This hydrogel exhibits high conductivity, anti-freezing properties, and a fast response, making it suitable for information storage and electronic skin applications (Chen et al., 2024).
- Microwave absorption materials: The preparation of flower-like carbon nanosheet aggregations embedded with ultrafine Mo(2)C, where ammonium molybdate plays a critical role, offers significant advancements in microwave absorption technology (Wang et al., 2023).
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This Item | ||
|---|---|---|
| description meets USP testing specifications | description ACS reagent, 99.98% trace metals basis | description ≥99% |
| assay 99.3-101.8% % | assay 81.0-83.0% MoO3 basis, 99.98% trace metals basis | assay ≥99% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 |
| agency meets USP testing specifications, USP/NF | agency suitable for SM 5210 | agency - |
| form crystals | form powder | form powder |
| solubility water: soluble 206.5 g/L at 20 °C | solubility - | solubility - |
| density 2.498 g/mL at 25 °C (lit.) | density 2.498 g/mL at 25 °C (lit.) | density - |
Storage Class
10-13 - German Storage Class 10 to 13
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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