Potassium Formate - ≥99% , CAS No.590-29-4

CAS: 590-29-4 Cat. No.: P105225 Formula: HCO2K Molecular Weight: 84.12 Beilstein Registry Number: 3623272 EC Number: 209-677-9
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
EINECS 209-677-9 | NCGC00260322-01 | Tox21_202775 | FORMIC ACID, K SALT | FT-0626538 | NSC 4846 | NSC-4846 | Potassium formate solution | UNII-25I90B156L | Formic acid, potassium salt | MFCD00013100 | HCO2K | WFIZEGIEIOHZCP-UHFFFAOYSA-M | CHEBI:63316 | Po
Storage
Desiccated,Room temperature
Shipped In
Normal
Size
USA
Germany (EU)*
Price
Qty
100g
P105225-100g
3 In stock
$25.90
500g
P105225-500g
3 In stock

$47.90

$69.90
Save $22.00 (31.47%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Desiccated,Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 23 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
EINECS 209-677-9 | NCGC00260322-01 | Tox21_202775 | FORMIC ACID, K SALT | FT-0626538 | NSC 4846 | NSC-4846 | Potassium formate solution | UNII-25I90B156L | Formic acid, potassium salt | MFCD00013100 | HCO2K | WFIZEGIEIOHZCP-UHFFFAOYSA-M | CHEBI:63316 | Po
Specifications & Purity
≥99%
Storage
Desiccated,Room temperature
Shipped In
Normal
Purity
≥99%
Names and Identifiers
Pubchem Sid504761242
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504761242
Canonical SmilesC(=O)[O-].[K+]
IUPAC Namepotassium;formate
InChIKeyWFIZEGIEIOHZCP-UHFFFAOYSA-M
INCHI1S/CH2O2.K/c2-1-3;/h1H,(H,2,3);/q;+1/p-1
Isomeric SMILES C(=O)[O-].[K+]
WGK Germany 2
Molecular Weight 84.12
Beilstein 3623272
Reaxy-Rn 3623272
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3623272&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassCarboxylic acid derivatives
Intermediate Tree Nodes Not available
Direct ParentCarboxylic acid salts
Alternative Parents Monocarboxylic acids and derivatives  Carboxylic acids  Organic potassium salts  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Carboxylic acid salt - Organic alkali metal salt - Monocarboxylic acid or derivatives - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic potassium salt - Organic salt - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as carboxylic acid salts. These are ionic derivatives of carboxylic acid.
External Descriptors potassium salt - one-carbon compound
3D Structure
Interactive Chemical Structure Model





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.

57 results found

Lot NumberCertificate TypeDateItem
H2620316Certificate of AnalysisAug 13, 2026 P105225
H2620315Certificate of AnalysisAug 13, 2026 P105225
H2620314Certificate of AnalysisAug 13, 2026 P105225
D2629278Certificate of AnalysisApr 14, 2026 P105225
D2629269Certificate of AnalysisApr 14, 2026 P105225
D2629264Certificate of AnalysisApr 14, 2026 P105225
D2629279Certificate of AnalysisApr 14, 2026 P105225
B2624427Certificate of AnalysisFeb 02, 2026 P105225
B2624428Certificate of AnalysisFeb 02, 2026 P105225
B2624429Certificate of AnalysisFeb 02, 2026 P105225
J2509829Certificate of AnalysisSep 23, 2025 P105225
I2509828Certificate of AnalysisSep 23, 2025 P105225
G2507438Certificate of AnalysisJun 11, 2025 P105225
G2507529Certificate of AnalysisJun 11, 2025 P105225
G2507554Certificate of AnalysisJun 11, 2025 P105225
E2507477Certificate of AnalysisApr 18, 2025 P105225
E2507476Certificate of AnalysisApr 18, 2025 P105225
E2507475Certificate of AnalysisApr 18, 2025 P105225
A2506390Certificate of AnalysisDec 23, 2024 P105225
A2506391Certificate of AnalysisDec 23, 2024 P105225
D2521645Certificate of AnalysisDec 23, 2024 P105225
A2506389Certificate of AnalysisDec 23, 2024 P105225
K2422377Certificate of AnalysisOct 14, 2024 P105225
K2404446Certificate of AnalysisOct 14, 2024 P105225
K2404447Certificate of AnalysisOct 14, 2024 P105225
K2404496Certificate of AnalysisOct 14, 2024 P105225
G2410478Certificate of AnalysisJul 02, 2024 P105225
G2410479Certificate of AnalysisJul 02, 2024 P105225
G2410480Certificate of AnalysisJul 02, 2024 P105225
E2428506Certificate of AnalysisApr 11, 2024 P105225
E2428505Certificate of AnalysisApr 11, 2024 P105225
E2413434Certificate of AnalysisApr 11, 2024 P105225
D2422253Certificate of AnalysisMar 09, 2024 P105225
D2416408Certificate of AnalysisMar 09, 2024 P105225
D2416407Certificate of AnalysisMar 09, 2024 P105225
C2404378Certificate of AnalysisFeb 21, 2024 P105225
C2404375Certificate of AnalysisFeb 21, 2024 P105225
C2404369Certificate of AnalysisFeb 21, 2024 P105225
L2320455Certificate of AnalysisDec 13, 2023 P105225
L2320454Certificate of AnalysisDec 13, 2023 P105225
I2306753Certificate of AnalysisAug 03, 2023 P105225
I2306752Certificate of AnalysisAug 03, 2023 P105225
I2306751Certificate of AnalysisAug 03, 2023 P105225
H23031133Certificate of AnalysisJul 11, 2023 P105225
H23031147Certificate of AnalysisJul 11, 2023 P105225
H23031143Certificate of AnalysisJul 11, 2023 P105225
E2305735Certificate of AnalysisApr 21, 2023 P105225
E2305734Certificate of AnalysisApr 21, 2023 P105225
E2305727Certificate of AnalysisApr 21, 2023 P105225
B2307367Certificate of AnalysisJan 29, 2023 P105225
B2307369Certificate of AnalysisJan 29, 2023 P105225
B2307564Certificate of AnalysisJan 29, 2023 P105225
I2227135Certificate of AnalysisJun 11, 2022 P105225
F2228512Certificate of AnalysisJun 11, 2022 P105225
F2228506Certificate of AnalysisJun 11, 2022 P105225
F2228472Certificate of AnalysisJun 11, 2022 P105225
L2214049Certificate of AnalysisJun 11, 2022 P105225

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Chemical and Physical Properties
SensitivityHygroscopic.
Melt Point(°C)165-168°C
Molecular Weight84.116 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass83.9614 Da
Monoisotopic Mass83.9614 Da
Topological Polar Surface Area40.100 Ų
Heavy Atom Count4
Formal Charge0
Complexity13.500
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count2
Documents & Articles
Citations of This Product
References
1. Hongjie Yu, Shaojian Jiang, Wenjie Zhan, Kai Deng, Ziqiang Wang, You Xu, Hongjing Wang, Liang Wang.  (2023)  Hydrogen-intercalation enhanced the anti-CO poisoning ability of palladium-copper metallene for direct formate fuel cells.  Materials Today Physics,      [PMID:] [10.1016/j.mtphys.2023.101216]
2. Xi-Lai Liu, Yu-Chuan Jiang, Jiang-Tao Huang, Wei Zhong, Bin He, Pu-Jun Jin, Yu Chen.  (2023)  Bifunctional PdPt bimetallenes for formate oxidation-boosted water electrolysis.  Carbon Energy,  (12): (e367).  [PMID:] [10.1002/cey2.367]
3. Wenlong Song, Xin Wang, Tian Hou, Xiaoshan Li, Hongwang Chen, Yue Yu, Xiaoran Sun, Ambrish Singh, Meng Zhang.  (2023)  Formate Additive for Efficient and Stable Methylammonium-Free Perovskite Solar Cells by Gas-Quenching.  CHEMISTRY-A EUROPEAN JOURNAL,  29  (37): (e202300576).  [PMID:37162488] [10.1002/chem.202300576]
4. Helei Wei, Aidong Tan, Zhipeng Xiang, Jie Zhang, Jinhua Piao, Zhenxing Liang, Kai Wan, Zhiyong Fu.  (2022)  Modulating p-Orbital of Bismuth Nanosheet by Nickel Doping for Electrocatalytic Carbon Dioxide Reduction Reaction.  ChemSusChem,  15  (15): (e202200752).  [PMID:35618698] [10.1002/cssc.202200752]
5. Wei Wang, Liu-Liu Shen, Hui Yu, Wenkai Xu, Jiansong Wang, Cong Yong, Gui-Rong Zhang, Donghai Mei.  (2022)  Solar-Boosted Paper-Based Microfluidic Fuel Cells for Miniaturized Power Sources.  Advanced Materials Technologies,  (10): (2200154).  [PMID:] [10.1002/admt.202200154]
6. Xianda Sun, Yinshi Li.  (2019)  Understanding mass and charge transports to create anion-ionomer-free high-performance alkaline direct formate fuel cells.  INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,      [PMID:] [10.1016/j.ijhydene.2019.01.240]
7. Wendi Guo, Zehui Sun, Meng-Jiao Xu, Kaizhi Wang, Mugeng Chen, Conglin Zhu, Heyong He, Yong-Mei Liu, Yong Cao.  (2024)  Asymmetric CoN3P1 single-atom catalytic sites for enhanced transfer hydrodehalogenation.  GREEN CHEMISTRY,      [PMID:] [10.1039/D3GC04739C]
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11. Zuolin Zhang, Mengjia Li, Ru Li, Xinmeng Zhuang, Chenglin Wang, Xueni Shang, Dongmei He, Jiangzhao Chen, Cong Chen.  (2024)  Suppressing Ion Migration by Synergistic Engineering of Anion and Cation toward High-Performance Inverted Perovskite Solar Cells and Modules.  ADVANCED MATERIALS,  36  (24): (2313860).  [PMID:38529666] [10.1002/adma.202313860]
12. Kaiyang Xu, Chenyue Zhang, Lu Yang, Yaowen Xu, Binwen Zeng, Qian Chen, Bowen Li, Yang Zhao, Zhipeng Yu, Haoliang Huang, Wenlong Wang, Lecheng Liang, Shuqin Song, Lifeng Liu.  (2025)  Deoxygenation-Induced Lattice Distortion in CuOx for Efficient Methane Diolate Anion Oxidation and Bipolar Hydrogen Evolution.  ADVANCED FUNCTIONAL MATERIALS,      [PMID:] [10.1002/adfm.202510268]
13. Hongjing Wang, Wenxin Wang, Qiqi Mao, Hongjie Yu, Kai Deng, You Xu, Xiaonian Li, Ziqiang Wang, Liang Wang.  (2022)  Tensile strained PdNi bimetallene for energy-efficient hydrogen production integrated with formate oxidation.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2022.137995]
14. Min Xu, Rui Xiao, Fengqian Xu, Wenbo Chai, Wenlong Liu, Huijie Lu.  (2024)  Formate-facilitated recovery of wastewater anammox granular sludge from oxygen inhibition: Effects and mechanisms.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2024.157510]
15. Xiuge Wang, Junhao Ren, Zhiyong Gao.  (2025)  Self-supported copper-cobalt oxide hybrid electrode for bifunctionally electrocatalytic nitrate reduction and methanol oxidation reactions.  JOURNAL OF COLLOID AND INTERFACE SCIENCE,      [PMID:40233693] [10.1016/j.jcis.2025.137575]
16. Zheng Xia, Fu Yaoqiang, Ning Jing, Wang Haorui, Liu Hongfei, Cui Chunhua.  (2026)  Boosting alkaline formate electrooxidation on Pd/Co(OH)2 catalysts through synergistic enhancement of Hads removal and HCOO− adsorption.  Science China-Chemistry,      [PMID:] [10.1007/s11426-025-3061-4]
17. Fan Yin, Zihui Lin, Hailong Lu, Chunmin Xu, Hui Chen, Long Cheng.  (2026)  Enhancing norfloxacin adsorption via NF dual-site non-metal functionalized biochar: Performance and mechanism.  Journal of Water Process Engineering,      [PMID:] [10.1016/j.jwpe.2026.109491]
18. Xiao-Dan Liu, Xiaomin Kang, En-Peng Du, Rui-Di Sun, Jie-Shu Qian, Li Zhou.  (2026)  Sustaining dynamic Cu surface reconstruction in formaldehyde oxidation coupled with a mechanically robust substrate-supported electrode design.  Chemical Engineering Journal Advances,      [PMID:] [10.1016/j.ceja.2026.101108]
19. Qixian xie, Bowen Guo, Yichen Zhang, Tianze Yang, Chenfang Cui, Zhengliang Liu, Honglin Yao, Baili Li, Wurong Ren.  (2026)  Dual Mode in situ Monitoring of CO2 Conversion via pH indicator and UV Vis Spectroscopy.  iScience,      [PMID:41858897] [10.1016/j.isci.2026.115158]
20. Zhang Yong, Qi Ying, Zhou Haiqing, Zhang Yan, Sun Jingying, Ma Wenqi, Hu Jiayi, Feng Ligang, Yu Fang.  (2026)  Built-in electric field engineering in Co2N0.67/CoP heterostructures for glycerol electrooxidation-assisted hydrogen production.  Nature Communications,      [PMID:41844637] [10.1038/s41467-026-70731-6]
21. Yijing Zhang, Si Sun, Ming Wang, Yaling Han, Xuan Luo, Shenzhen Cong, Tao He, Huan Pang.  (2026)  Geometrically stable nanopores in Zr-MOF membranes for effective Li+/Mg2+ separation.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2026.125364]
22. Liu Sijie, Zhao Jinlong, Gao Liya, Ding Xiaoshu, Wang Jiaxi, Zhang Dongsheng, Zhao Xinqiang, Wang Yanji.  (2026)  A Closed Cycle for the Carboxylation-Esterification of Furoic Acid with CO2 over Supported Alkali Metal Salt Catalysts.  INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,  65  (30): (15954-15963).  [PMID:] [10.1021/acs.iecr.6c01727]
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