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658510

Sigma-Aldrich

亚硫酸钾

90%

别名:

亚硫酸二钾

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About This Item

线性分子式:
K2SO3
CAS号:
10117-38-1
分子量:
158.26
EC 号:
233-321-1
MDL编号:
MFCD00011387
UNSPSC代码:
12352302
PubChem化学物质编号:
24884361
NACRES:
NA.22

质量水平

200

方案

90%

SMILES字符串

[K+].[K+].[O-]S([O-])=O

InChI

1S/2K.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2

InChI key

BHZRJJOHZFYXTO-UHFFFAOYSA-L

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应用

亚硫酸钾（K2SO3) 可用作二氧化硫氧化的催化剂。[1]也可作为阴离子催化剂，用于通过异氰酸芳基环三聚反应制备杂环对称异氰脲酸酯。[2]

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
0000433849
0000433849
0000433851
0000433850
0000433850

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The reactivity of products of thermal interaction between ammonium meta-vanadate and potassium sulfite as catalysts for oxidation of sulfur dioxide
Fouda MFR, et al.
Applied Catalysis A: General, 223(1-2), 11-27 (2002)
David Crich et al.
Journal of the American Chemical Society, 128(8), 2544-2545 (2006-02-24)
Alkylation of potassium selenosulfate with allylic halides gives Se-allyl seleno Bunte salts. On reaction with thiols at room temperature, these afford mixed dialkyl selenosulfides, which undergo 2,3-sigmatropic rearrangement with loss of selenium, either spontaneously or with assistance by triphenylphosphine, thereby
Sulfate catalysed multicomponent cyclisation reaction of aryl isocyanates under green conditions
Dekamin, Mohammad G, et al.
J. Chem. Res. (M), 2005(3), 177-179 (2005)
Xinjian Shi et al.
Nature communications, 5, 4775-4775 (2014-09-03)
Tungsten trioxide/bismuth vanadate heterojunction is one of the best pairs for solar water splitting, but its photocurrent densities are insufficient. Here we investigate the advantages of using helical nanostructures in photoelectrochemical solar water splitting. A helical tungsten trioxide array is

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    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?

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    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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