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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

Preparation Products

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Potassium pyrosulfate Suppliers

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15839
Advantage
69
Beijing HwrkChemical Technology Co., Ltd
Tel
010-89508211 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
8418
Advantage
55
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
Adamas Reagent, Ltd.
Tel
400-6009262 16621234537
Fax
021-64823266
Email
chenyj@titansci.com
Country
China
ProdList
14103
Advantage
59
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42958
Advantage
64
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18738
Advantage
57
Sichuan Kulinan Technology Co., Ltd
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11707
Advantage
57
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14435
Advantage
57
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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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