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

5 Citations

≥97%

CAS#: 16731-55-8
Formula: K₂S₂O₅
Molecular Weight: 222.32
EC Number: 240-795-3
MDL number: MFCD00167605
PubChem CID: 28019

Item Number

P299315

Grouped product items
SKU	Size	Availability	Price	Qty
P299315-500g	500g	In stock	$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.

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

InChi Key

RWPGFSMJFRPDDP-UHFFFAOYSA-L

Canonical SMILES

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

Isomeric SMILES

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

PubChem CID

28019

UN Number

1759

Packing Group

Molecular Weight

222.32

Certificates

Certificate of Analysis(COA)

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5 results found

Lot Number	Certificate Type	Date	Item
I2213088	Certificate of Analysis	Aug 02, 2022	P299315
I2213097	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

Solubility

Soluble in water. Insoluble in ethanol.

Sensitivity

Air & Moisture Sensitive

Melt Point(°C)

190°C

Safety and Hazards(GHS)

Pictogram(s)	GHS05, GHS07
Signal	Danger
Hazard Statements	H315:Causes skin irritation H335:May cause respiratory irritation H318:Causes serious eye damage
Precautionary Statements	P261:Avoid breathing dust/fume/gas/mist/vapors/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of water. P321:Specific treatment (see ... on this label). P405:Store locked up. P501:Dispose of contents/container to ... P264:Wash hands [and …] thoroughly after handling. P271:Use only outdoors or in a well-ventilated area. P304+P340:IF INHALED: Remove person to fresh air and keep comfortable for breathing. P403+P233:Store in a well-ventilated place. Keep container tightly closed. P362+P364:Take off contaminated clothing and wash it before reuse. P264+P265:Wash hands [and …] thoroughly after handling. Do not touch eyes. P305+P354+P338:IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. P317:Get emergency medical help. P332+P317:If skin irritation occurs: Get medical help. P319:Get medical help if you feel unwell.
Class	8

Citations of This Product

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]
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]
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]
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). [PMID:]
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:]

References

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]
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]
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]
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). [PMID:]
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:]

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