Potassium Persulfate 过硫酸钾
CAS 7727-21-1 MFCD00011386
化学结构图
SMILES: O=S(=O)([O-])OOS(=O)(=O)[O-].[K+].[K+]
化学属性
| Mol. Formula | K2S2O8 |
|---|---|
| Mol. Weight | 270 |
| Melting Point | 1067 |
| Density | 2.47 |
| TSCA | Yes |
| Vapor Density | 9.3 (vs air) |
| Solubility | 5 G/100 ML (20 ºC) |
| Stability | 对湿度敏感 |
| Redox | Oxidation |
别名和识别编码
| Chemical Name | Potassium Persulfate |
|---|---|
| Synonym | Potassium persulfate |
| CAS Number | 7727-21-1 |
| PubChem Substance ID | 24863691 |
| EC Number | 231-781-8 |
| MDL Number | MFCD00011386 |
| Merck Number | 14,7656 |
| Chemical Name Translation | 过硫酸钾 |
| Wiswesser Line Notation | .KA2.S-O4*2 |
| LabNetwork Molecule ID | LN00196325 |
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分类
- {SNA} Analytical Reagents for General Use,
- {SNA} Chemical Synthesis, Essential Chemicals, Metal and Ceramic Science, Oxidizing Agents, Potassium Salts, Research Essentials, Salts, Sulfur-Based, Synthetic Reagents, 材料科学
- {SNA} C-H Activation, Catalysis and Inorganic Chemistry, Chemical Synthesis, Essential Chemicals, Free Radical Initiators,
- {SNA} Chemical Synthesis, Oxidizing Agents, Sulfur-Based, Synthetic Reagents
- {SNA} C-H Activation, Catalysis and Inorganic Chemistry, Chemical Synthesis, Essential Chemicals, Free Radical Initiators, Inorganic Peroxides, Oxidants,
产品应用
- 分析试剂、氧化剂、洗照片。聚合反应引发剂。照相冲洗(除去硫化硫酸盐)。
相关文献及参考
- Conversion of phenols to para-diphenols in alkaline solution (Elbs oxidation), and of arylamines to aminophenols (Boyland-Sims oxidation); review: Org. React., 35, 421 (1988). Phase-transfer conversion of acids to peracids in the presence of BTEAC or PEG: Synth. Commun., 18, 2123 (1988). In the presence of Na2HPO4 in acetone - dichloromethane, arylamines give nitro arenes: Tetrahedron Lett., 29, 4501 (1988). In the presence of Ni(II) salts, primary alkylamines can undergo dehydrogenation to nitriles: Bull. Chem. Soc. Jpn., 63, 301 (1990).
- Useful oxidant: J. Org. Chem., 25, 1901 (1960); examples:
- See also Ammonium peroxydisulfate, A10533, and Sodium peroxydisulfate, 54100.
- Merck: 14,7656
安全信息
GHS Symbol
- H315 Causes skin irritation 会刺激皮肤
- H317 May cause an allergic skin reaction 可能导致皮肤过敏
- H302 Harmful if swallowed 吞食有害
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled 吸入可能导致过敏或哮喘症状或呼吸困难
- H335 May cause respiratory irritation 可能导致呼吸道刺激
- H319 Causes serious eye irritation 严重刺激眼睛
- H272 May intensify fire; oxidizer 可能加剧火势；氧化剂。
- P220 Keep/Store away from clothing/…/combustible materials. 保持远离/贮存远离服装/....../可燃材料。
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
- P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
- P305+P351+P338
- P342+P311
- S22 Do not breathe dust 不要吸入粉尘；
- S24 Avoid contact with skin 避免皮肤接触；
- S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见；
- S37 Wear suitable gloves 戴适当手套；
- R22 Harmful if swallowed 吞咽有害
- R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
- R42/43
- R8 Contact with combustible material may cause fire 遇到易燃物会导致起火
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 802 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : 85INA8 "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986 Volume(issue)/page/year: 5,468,1986
其他信息
- 溶于水，溶液呈酸性，不溶于醇。遇潮湿或受热逐渐分解放出氧。无气味。能逐渐分解失去有效氧，湿气中能促使其分解，高温时分解较快，在约100℃时全部分解。溶于约50份水(40℃时溶于25份水)，不溶于乙醇，水溶液呈酸性。有强氧化性。与有机物摩擦或撞击能引起燃烧。有强刺激性。
