Merck
CN

216224

Sigma-Aldrich

过硫酸钾

ACS reagent, ≥99.0%

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别名:
KPS, 过氧化二硫酸钾
线性分子式:
K2S2O8
CAS号:
分子量:
270.32
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent

蒸汽密度

9.3 (vs air)

蒸汽压

<0.1 hPa ( 25 °C)

检测方案

≥99.0%

形式

powder or crystals

反应适用性

reagent type: catalyst
reaction type: C-H Activation

reagent type: oxidant

杂质

≤0.001% Cl compounds
≤0.005% insolubles

pH值(酸碱度)

2.5-4.5 (25 °C, 27 g/L)

痕量阳离子

Fe: ≤5 ppm
Mn: ≤2 ppm
heavy metals (as Pb): ≤0.001%

SMILES字符串

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

InChI

1S/2K.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

InChI key

USHAGKDGDHPEEY-UHFFFAOYSA-L

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一般描述

Potassium persulfate is a water-soluble inorganic salt that releases oxygen and exhibits a strongly exothermic reaction. It is stable at room temperature but decomposes at high temperatures. Potassium persulfate is commonly used as an oxidant and in the polymerization of numerous monomers, mainly in the field of hydrogel synthesis.

应用

Potassium persulfate is used as an oxidizing agent:

  • in the oxidation of 4-Chloro-3-methylphenol in pressurized hot water and supercritical water in a continuous flow system.
  • in determinations of dissolved organic carbon.
Potassium persulfate (KPS) has also been used as a redox initiator :

  • in the graft polymerization of acrylonitrile onto starch in aqueous solution.
  • in the synthesis of sulfate radical anions via polymerization processes.
  • as polymerization and radical initiator in the synthesis of polyacrylamide-Laponite-lead dioxide nanoparticle hydrogel composites by acrylamide as monomers.

警示用语:

Danger

危险分类

Acute Tox. 4 Oral - Eye Irrit. 2 - Ox. Sol. 3 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

靶器官

Respiratory system

储存分类代码

5.1B - Oxidizing hazardous materials

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

危险化学品

分析证书(COA)

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在网站页面上,产品编号会附带包装尺寸/数量一起显示(例如:T1503-25G)。请确保 在“产品编号”字段中仅输入产品编号 (示例: T1503).

示例

T1503
货号
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25G
包装规格/数量

其它示例:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

输入内容 1.000309185)

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  • 如果您查询到的批号为 TO09019TO 等,请输入去除前两位字母的批号:09019TO。

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Oxidation of 4-chloro-3-methylphenol in pressurized hot water/supercritical water with potassium persulfate as oxidant
Juhani K, et al.
Environmental Science & Technology, 35, 3247-3251 (2001)
UV-initiated bubble-free frontal polymerization in aqueous conditions
Paul Michael P, et al.
Macromolecules, 48, 8738-8745 (2015)
A systematic study of triangular silver nanoplates: one-pot green synthesis, chemical stability, and sensing application
Yosia Nico W, et al.
Nanoscale, 9, 11705-11712 (2017)
Kinetics and mechanism of graft polymerization of acrylonitrile onto starch initiated with potassium persulfate
zadeh t mt, et al.
Journal of science (2001)
Potassium persulfate as oxidant in pressurized hot water
Juhani K, et al.
Environmental Science & Technology, 33, 2095-2099 (1999)

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