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Merck
CN

307750

Potassium disulfate

ReagentPlus®, 99%

Synonym(s):

Potassium pyrosulfate

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About This Item

Empirical Formula (Hill Notation):
K2S2O7
CAS Number:
Molecular Weight:
254.32
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
232-216-8
MDL number:
Assay:
99%
Grade:
reagent grade
Form:
powder
Solubility:
water: soluble
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Quality Level

grade

reagent grade

product line

ReagentPlus®

assay

99%

form

powder

solubility

water: soluble

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

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


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pictograms

Skull and crossbonesCorrosion

signalword

Danger

hcodes

Hazard Classifications

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

Storage Class

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

wgk

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges



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One-Pot Synthesis of 1-Monosubstituted 1, 2, 3-Triazoles from Propargyl Alcohol
Han C, et al.
Synlett, 29(05), 673-677 (2018)
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
Pui-Yiu Lee et al.
Organic letters, 19(8), 2082-2085 (2017-04-05)
A Pd-catalyzed decarboxylative acylation of aromatic ketones with α-oxocarboxylic acids was developed, and 1,2-diacylbenzenes were formed in up to 90% yield with excellent ortho-selectivity. This work demonstrates the first successful attempt to direct C-H acylation of aromatic ketones without the



Global Trade Item Number

SKUGTIN
307750-25G04061826673843
307750-500G04061826673850