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Potassium pyrosulfate

Product Name
Potassium pyrosulfate
CAS No.
7790-62-7
Chemical Name
Potassium pyrosulfate
Synonyms
POTASSIUM HYDROGEN SULFATE;POTASSIUM PYROSULPHATE;POTASSIUM DISULFATE;Potassium pyrosulfat;POTASSIUM DISULPHATE;POTASSIUM PYROSULFATE;DIPOTASSIUM DISULFATE;PotassiumPyrosulphateGr;DI-POTASSIUM DISULPHATE;PotassiuM anhydrosulfate
CBNumber
CB2370613
Molecular Formula
K2O7S2
Formula Weight
254.32
MOL File
7790-62-7.mol
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Potassium pyrosulfate Property

Melting point:
325 °C
Density 
2.28 g/mL at 25 °C (lit.)
storage temp. 
no restrictions.
solubility 
H2O: 0.1 M at 20 °C, clear, colorless
form 
Solid
Specific Gravity
2.28
color 
White
PH
0.8 (50g/l, H2O, 20℃)
Odor
Odorless
PH Range
1 - 2 at 25.5 g/l at 25 °C
Water Solubility 
MAY DECOMPOSE
Sensitive 
Hygroscopic
Merck 
14,7664
Stability:
Stable. Incompatible with strong acids, strong bases.
CAS DataBase Reference
7790-62-7(CAS DataBase Reference)
EPA Substance Registry System
Disulfuric acid, dipotassium salt (7790-62-7)
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Safety

Hazard Codes 
C
Risk Statements 
34
Safety Statements 
26-36/37/39-45
RIDADR 
UN 3260 8/PG 2
WGK Germany 
3
HS Code 
2833 29 80
HazardClass 
8
PackingGroup 
II
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

H330Fatal if inhaled

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
307750
Product name
Potassium disulfate
Purity
ReagentPlus , 99%
Packaging
25g
Price
$61.8
Updated
2024/03/01
Sigma-Aldrich
Product number
307750
Product name
Potassium disulfate
Purity
ReagentPlus , 99%
Packaging
500g
Price
$203
Updated
2024/03/01
Sigma-Aldrich
Product number
1.05107
Product name
Potassium disulfate (Potassium pyrosulfate)
Purity
for analysis EMSURE? ACS
Packaging
1kg
Price
$503
Updated
2024/03/01
Sigma-Aldrich
Product number
1.05107
Product name
Potassium disulfate (Potassium pyrosulfate)
Purity
for analysis EMSURE? ACS
Packaging
5kg
Price
$1960
Updated
2024/03/01
Sigma-Aldrich
Product number
60235
Product name
Potassium disulfate
Purity
puriss. p.a., ≥97.5% (T)
Packaging
1kg
Price
$409
Updated
2024/03/01
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Potassium pyrosulfate Chemical Properties,Usage,Production

Chemical Properties

Colorless needles or white, crystalline powder or fused pieces. Soluble in water ( converted to potassium bisulfate).

Uses

Acid flux in analysis, laboratory reagent.

Uses

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.

Uses

Potassium disulfite supported on silica may be used for the synthesis of ethyl pyruvate.

General Description

Potassium disulfite (Potassium pyrosulfate) has been synthesized from potassium hydrogen sulfate, via melting.

Flammability and Explosibility

Non flammable

Potassium pyrosulfate Preparation Products And Raw materials

Raw materials

Potassium hydroxide Sulfuric acid Potassium sulfate

Preparation Products

Pyruvic acid
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Potassium pyrosulfate Suppliers

Belgium 1 Canada 1 China 192 Czech Republic 1 Europe 2 France 1 Germany 3 India 13 Japan 5 Switzerland 1 United Kingdom 5 United States 28 Global 253
Acros Organics
Tel
--
Fax
--
Email
info@acros.com
Country
Belgium
ProdList
6772
Advantage
81
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View Lastest Price from Potassium pyrosulfate manufacturers

Shandong Deshang Chemical Co., Ltd.
Product
Potassium pyrosulfate 7790-62-7
Price
US $10.00-7.00/kg
Min. Order
1kg
Purity
99.99%
Supply Ability
10 tons
Release date
2024-06-14
Career Henan Chemical Co
Product
Potassium pyrosulfate 7790-62-7
Price
US $1.00/KG
Min. Order
1KG
Purity
995
Supply Ability
25kg
Release date
2019-07-12

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