Potassium pyrosulfite - ≥97% , CAS No.16731-55-8

CAS: 16731-55-8 Cat. No.: P401412 Peso molecular: 222.32 Número EC: 240-795-3

GRADE & PURITY ≥97%

Synonyms

POTASSIUM METABISULFITE [MI] | CCRIS 1427 | Potassium metabisulfite (NF) | Q417881 | J-010353 | Potassium metabisulfite (e 224) | Potassium disulfite, analytical standard | POTASSIUM METABISULFITE [WHO-DD] | Dipotassium pyrosulfite | HSDB 5062 | POTASSIUM

Storage

Room temperature,Argon charged

Shipped In

Normal

Descripción general

Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods. Its genotoxic and cytotoxic effect has been assessed. PMB undergoes hydrolysis to form potassium bisulfite.

General description
Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods. Its genotoxic and cytotoxic effect has been assessed. PMB undergoes hydrolysis to form potassium bisulfite.
Application
Potassium disulfite has been used in a protocol for the modification of the polydimethylsiloxane (PDMS) polymer surfaces.
It may be used in the following processes:
Chemical etching of poly(vinylidene fluoride) in β-phase (β-PVDF) irradiated films.
Decolorization during the synthesis of 2-iodopyrimidine derivatives.
Palladium-catalyzed aminosulfonylation of aryl halides.

Specifications

Sinónimos

POTASSIUM METABISULFITE [MI] | CCRIS 1427 | Potassium metabisulfite (NF) | Q417881 | J-010353 | Potassium metabisulfite (e 224) | Potassium disulfite, analytical standard | POTASSIUM METABISULFITE [WHO-DD] | Dipotassium pyrosulfite | HSDB 5062 | POTASSIUM

Especificaciones y pureza

≥97%

Condiciones de almacenamiento de almacenamiento

Room temperature, Argon charged

Enviado en

Normal

Pureza

≥97%

Nombres e identificadores

• Pubchem Sid: 504753375
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/504753375
• Sonrisas canónicas: [O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
• InChIKey: RWPGFSMJFRPDDP-UHFFFAOYSA-L
• INCHI: 1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
• Isómeros SMILES: [O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
• Número ONU: 1759
• Grupo de embalaje: I
• Peso molecular: 222.32
• Reaxy-Rn: 14412766
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14412766&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Clase Alkali metal oxoanionic compounds
      • Subclass Alkali metal dithionites

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Clase: Alkali metal oxoanionic compounds
• Subclass: Alkali metal dithionites
• Intermediate Tree Nodes: Not available
• Direct Parent: Alkali metal dithionites
• Alternative Parents: Inorganic salts Inorganic oxides
• Molecular Framework: Not available
• Substituents: Alkali metal dithionite - Inorganic oxide - Inorganic salt
• Descripción: This compound belongs to the class of inorganic compounds known as alkali metal dithionites. These are inorganic compounds in which the largest oxoanion is dithionite, and in which the heaviest atom not in an oxoanion is an alkali metal.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Propiedades químicas y físicas

• Solubilidad: Soluble in water. Insoluble in ethanol.
• Sensibilidad: Air & Moisture Sensitive
• Punto de fusión (°C): 190°C
• Peso molecular: 222.330 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 221.846 Da
• Monoisotopic Mass: 221.846 Da
• Topological Polar Surface Area: 125.000 Ų
• Heavy Atom Count: 9
• Formal Charge: 0
• Complexity: 136.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 3

XLogP3

Referencias

1. Yijie Wu, Xin Wang, Tiantian She, Taozhu Li, Yunheng Wang, Zhe Xu, Xin Jin, Haiou Song, Shaogui Yang, Shiyin Li, Shicheng Yan, Huan He, Limin Zhang, Zhigang Zou.  (2023)  Iron 3D-Orbital Configuration Dependent Electron Transfer for Efficient Fenton-Like Catalysis.  Small,  20  (2): (2306464).  [PMID:37658488] [10.1002/smll.202306464]

2. Yifan Liu, Jiazuo Zhou, Yudong Li, Ziyao Wang, Xiaohan Sun, Haiyue Yang, Chengyu Wang.  (2023)  Intermittent Exothermic and Self-Healing Hydrated Salt Gels for Advanced Thermal Management of Underfloor Radiant Heating System.  Small,  19  (50): (2305134).  [PMID:37626457] [10.1002/smll.202305134]

3. Kongming Fan, Yan Li, Qiaofeng Fu, Jinmin Wang, Yong Lin, Linyu Qiu, Li Ran, Junli Yang, Chunyan Yang.  (2023)  Bio-Assay-Guided Isolation of Fractions and Constituents with Antioxidant and Lipid-lowering Activity from Allium cepa.  Antioxidants,  12  (7): (1448).  [PMID:37507986] [10.3390/antiox12071448]

4. Ruiying Li, J. Paul Chen, Viatcheslav Freger.  (2023)  A new fabrication approach for mixed matrix membrane fabricated with interstitially sealed MOF nanoparticles.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2023.121357]

5. Shi MingYue, Jiang LiJie, Yu ChaoJie, Dong XiaoRu, Yu QingYu, Yao MengMeng, He ShaoShuai, Yue ZhiWei, Yao FangLian, Zhang Hong, Sun Hong, Li JunJie.  (2022)  A robust polyacrylic acid/chitosan cryogel for rapid hemostasis.  Science China-Technological Sciences,  65  (5): (1029-1042).  [PMID:] [10.1007/s11431-021-1986-9]

6. Shian Zhong, Yanyue Kong, Ling Zhou, Chengyun Zhou, Xiaona Zhang, Yan Wang.  (2013)  Efficient conversion of myricetin from Ampelopsis grossedentata extracts and its purification by MIP-SPE.  JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES,      [PMID:24321759] [10.1016/j.jchromb.2013.11.036]

7. Yifan Liu, Jiazuo Zhou, Yudong Li, Xiaohan Sun, Ziyao Wang, Haiyue Yang, Chengyu Wang.  (2024)  A Cellulose Salt Gel with Mechanical Transformation and Thermal Control.  ADVANCED FUNCTIONAL MATERIALS,      [PMID:] [10.1002/adfm.202400203]

8. Xiao Xiao, Guowei Shan, Hong Gao, Zhe Ling, Yujia Tong, Xiaohui Ju, Weixing Li.  (2024)  Combinational strategy of chemical graft and layer-by-layer assembly of novel nanocomposite membranes fabrication for heavy metal ion capture.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2024.160590]

9. Liu Kai, Lian Yinyin, Xie Xingyun, Gao Yuyang, Song Jiajia, Suo Huayi, Zhang Yu.  (2025)  Enhancing blueberry wine quality and antioxidant capacity through mixed fermentation with S. cerevisiae and O. oeni.  npj Science of Food,  9  (1): (1-9).  [PMID:40140680] [10.1038/s41538-024-00363-x]

10. Zhuojun Jiang, Yufeng Liang, Shuyao Xiong, Guo Li, Qian Zhang, Benzheng Xia, Liangrong Yang, Zheng Li.  (2024)  Synergistic solvent extraction of boric acid by trioctylamine and 2-hydroxydodecanoic acid.  CHINESE JOURNAL OF CHEMICAL ENGINEERING,      [PMID:] [10.1016/j.cjche.2024.06.009]

11. Yinyin Lian, Yingmei Meng, Mei Wang, Jiajia Song, Huayi Suo, Yu Zhang.  (2025)  Pre- and post-transformation changes in two mulberry varieties for semi-sweet wine production.  Food Chemistry-X,      [PMID:40698370] [10.1016/j.fochx.2025.102728]

12. Rui Liao, Xiongjun Xiao, Huiling Huang, Kangjie Yu, Jianxia Tan, Yue Wang, Cong Li, Siyu Li, Yi Ma.  (2025)  Effect of Yeast Polysaccharides Replacing Sulfur Dioxide on Antioxidant Property and Quality Characteristics of Cabernet Sauvignon Wines.  Foods,  14  (18): (3188).  [PMID:41008162] [10.3390/foods14183188]

13. Wei Xiao, Jian-Qiang Chen, Jie Wu.  (2025)  Radical sulfonylation with sulfur dioxide surrogates.  CHEMICAL SOCIETY REVIEWS,      [PMID:40498470] [10.1039/D4CS01312C]