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
233706
Vanadium(IV) oxide sulfate hydrate
97%
Synonym(s):
Vanadyl sulfate hydrate
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$97.90
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About This Item
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Quality Level
assay
97%
form
powder
composition
Degree of hydration, 3-5
reaction suitability
core: vanadium
reagent type: catalyst
mp
105 °C (lit.)
SMILES string
O=[V++].[H]O[H].[O-]S([O-])(=O)=O
InChI
1S/H2O4S.H2O.O.V/c1-5(2,3)4;;;/h(H2,1,2,3,4);1H2;;/q;;;+2/p-2
InChI key
DKCWBFMZNUOFEM-UHFFFAOYSA-L
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This Item | 307718 | 204862 | 31606 |
|---|---|---|---|
| form powder | form powder | form solid | form powder |
| assay 97% | assay 97% | assay ≥99.99% trace metals basis | assay ≥98% |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| mp 105 °C (lit.) | mp - | mp 105 °C (lit.) | mp - |
| composition Degree of hydration, 3-5 | composition - | composition Degree of hydration, 3-5 | composition - |
| reaction suitability reagent type: catalyst | reaction suitability reagent type: catalyst | reaction suitability reagent type: catalyst | reaction suitability reagent type: catalyst |
General description
Application
VOSO4 and anthraquinone-2,7-disulfonicacid can be used as a redox couple to prepare aqueous organic redox flowbattery (AORFB) stack.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Oral - Aquatic Chronic 2
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk_germany
WGK 3
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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How do you calculate the degree of hydration in products 233706 and 204862?
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The equation used to determine the degree of hydration for products 233706 and 204862 is the following.((Molecular weight of Metal * Number of Metal Ions) - (% of metal in product as decimal * anhydrous weight of product)) / (% of metal in product as decimal * 18)Note: 18 is the molecular weight of water.
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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