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233706

Sigma-Aldrich

Vanadium(IV) oxide sulfate hydrate

97%

Synonym(s):

Vanadyl sulfate hydrate

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About This Item

Linear Formula:
VOSO4 · xH2O
CAS Number:
Molecular Weight:
163.00 (anhydrous basis)
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23
grade:
for analytical purposes
form:
powder
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grade

for analytical purposes

Assay

97%

form

powder

composition

Degree of hydration, 3-5

reaction suitability

reagent type: catalyst
core: vanadium

mp

105 °C (lit.)

application(s)

battery manufacturing

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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General description

Vanadium (IV) oxide sulfate hydrate is a blue crystalline solid. It is soluble in water and posseses weak oxidizing or reducing properties.

Application

Vanadium (IV) oxide sulfate hydrate has been used to generate vanadiumions, which can be introduced in saponite clay by hydrothermal process.

VOSO4 and anthraquinone-2,7-disulfonicacid can be used as a redox couple to prepare aqueous organic redox flowbattery (AORFB) stack.

Pictograms

Skull and crossbonesEnvironment

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Chronic 2

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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On the properties of a novel V-containing saponite catalyst for propene oxidative dehydrogenation
Carniato F, et al.
Catalysis Letters, 132(1-2), 42-48 (2009)
Alessandro Chieregato et al.
ChemSusChem, 8(2), 398-406 (2014-12-10)
Glycerol surplus from biodiesel synthesis still represents a major problem in the biofuel production chain. Meanwhile, those in the acrylic acid market are looking for new processes that are able to offer viable alternatives to propylene-based production. Therefore, acrylic acid

Questions

1–4 of 4 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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  3. What is the Department of Transportation shipping information for this product?

    1 answer
    1. 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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  4. How do you calculate the degree of hydration in products 233706 and 204862?

    1 answer
    1. 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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