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307750

Sigma-Aldrich

Potassium disulfate

ReagentPlus®, 99%

Synonym(s):

Potassium pyrosulfate

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About This Item

Empirical Formula (Hill Notation):
K2S2O7
CAS Number:
7790-62-7
Molecular Weight:
254.32
EC Number:
232-216-8
MDL number:
MFCD00011385
UNSPSC Code:
12352302
PubChem Substance ID:
24858622
NACRES:
NA.22

Quality Level

100

product line

ReagentPlus®

Assay

99%

form

powder

density

2.28 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

InChI key

KAQHZJVQFBJKCK-UHFFFAOYSA-L

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Application

Potassium disulfate (K2S2O7) can be used:
  • As a salt catalyst for the conversion of hemicellulose into reducing sugars such as xylose and galactose by mechanocatalysis .
  • In the preparation of diacylbenzenes via Pd-catalyzed decarboxylative acylation of aromatic ketones with oxocarboxylic acids.
  • As an oxidant for the preparation of monosubstituted triazoles from aryl azides and propargyl alcohol using Ag2O as a catalyst.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Statements

H314,H331

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A

Storage Class Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP5830
MKCM6033
MKCK9635
SHBK8410
SHBH3023V

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Laura Schneider et al.
Bioresource technology, 234, 1-7 (2017-03-21)
The catalytic conversion of lignocellulosic biomass is attractive due to the feasible generation of valuable products such as reducing sugars which constitute the basic substrates for chemical and transportation fuel production, as well as the production of renewable hydrogen. This
Chromate dermatitis and sodium dithionite.
L M Wall
Contact dermatitis, 8(5), 291-293 (1982-09-01)
Titrimetric determination of glutaraldehyde concentrations.
T Kalina et al.
Folia morphologica, 35(2), 113-115 (1987-01-01)

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