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

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

10 Citations

COA

Grade & Purity:

≥97%

Cas Number: 16731-55-8
Molecular Weight: 222.32
EC Number: 240-795-3
MDL number: MFCD00167605
PubChem CID: 28019

In stock

Item Number

P299315

Grouped product items
SKU	Size	Availability	Price	Qty
P299315-500g	500g	3	$27.90

Basic Description

Synonyms	POTASSIUM METABISULFITE \| 16731-55-8 \| Potassium disulfite \| Potassium pyrosulfite \| Dipotassium pyrosulfite \| Sobisu \| potassium metabisulphite \| Potassium pentaoxodisulfate \| Ins-224 \| Potassium metabisulfite [NF] \| Potassium metabisulfite (e 224) \| 65OE787Q7W \| Dipotassium di
Specifications & Purity	≥97%
Storage Temp	Argon charged
Shipped In	Normal
Product 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.

Taxonomic Classification

Taxonomy Tree

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

Kingdom	Inorganic compounds
Superclass	Mixed metal/non-metal compounds
Class	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
Description	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
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

Names and Identifiers

INCHI	InChI=1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChIKey	RWPGFSMJFRPDDP-UHFFFAOYSA-L
Smiles	[O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
Isomeric SMILES	[O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
UN Number	1759
Packing Group	I
Molecular Weight	222.32
Reaxy-Rn	14412766
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14412766&ln=

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

5 results found

Lot Number	Certificate Type	Date	Item
I2213097	Certificate of Analysis	Aug 02, 2022	P299315
I2213088	Certificate of Analysis	Aug 02, 2022	P299315
A2220214	Certificate of Analysis	Dec 14, 2021	P299315
A2220220	Certificate of Analysis	Dec 14, 2021	P299315
B2302423	Certificate of Analysis	Dec 14, 2021	P299315

Chemical and Physical Properties

Solubility	Soluble in water. Insoluble in ethanol.
Sensitivity	Air & Moisture Sensitive
Melt Point(°C)	190°C
Molecular Weight	222.330 g/mol
XLogP3
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 Å²
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

Citations of This Product

How to Cite Aladdin Scientific Products?

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).
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).
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).
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, 671 (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).
6. Shian Zhong, Yanyue Kong, Ling Zhou, Chengyun Zhou, Xiaona Zhang, Yan Wang. (2014) 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, 945-946 (39).
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, (2400203).
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, 669 (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).
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,

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