Potassium Bis(fluorosulfonyl)imide(KFSI) - ≥95%(T) , CAS No.14984-76-0

CAS: 14984-76-0 Cat. No.: P160352 Molecular Weight: 219.22 EC Number: 604-707-0 PubChem CID: 23697682
AVAILABLE TO ORDER
GRADE & PURITY ≥95%(T)
Synonyms
F2KNO4S2 | EN300-198709 | MHEBVKPOSBNNAC-UHFFFAOYSA-N | potassium bis(fluorosulfonyl)amide | potassiumbis(fluorosulfonyl)amide | Potassiumbis(fluorosulfonyl)imide | KFSI | AKOS027250573 | Potassium bis(fluorosulfonyl)imide, 98% | BIS(FLUOROSULFONYL)IMIDE
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
P160352-250mg
3
$9.90
1g
P160352-1g
3
$15.90
5g
P160352-5g
1
$49.90
25g
P160352-25g
3
$159.90
100g
P160352-100g
1
$526.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥95%(T) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice 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 12 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
F2KNO4S2 | EN300-198709 | MHEBVKPOSBNNAC-UHFFFAOYSA-N | potassium bis(fluorosulfonyl)amide | potassiumbis(fluorosulfonyl)amide | Potassiumbis(fluorosulfonyl)imide | KFSI | AKOS027250573 | Potassium bis(fluorosulfonyl)imide, 98% | BIS(FLUOROSULFONYL)IMIDE
Specifications & Purity
≥95%(T)
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥95%(T)
Names and Identifiers
Canonical Smiles[N-](S(=O)(=O)F)S(=O)(=O)F.[K+]
IUPAC Namepotassium;bis(fluorosulfonyl)azanide
InChIKeyMHEBVKPOSBNNAC-UHFFFAOYSA-N
INCHI1S/F2NO4S2.K/c1-8(4,5)3-9(2,6)7;/q-1;+1
Isomeric SMILES [N-](S(=O)(=O)F)S(=O)(=O)F.[K+]
PubChem CID 23697682
Molecular Weight 219.22

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

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassAlkali metal salts
SubclassAlkali metal fluorides
Intermediate Tree Nodes Not available
Direct ParentAlkali metal fluorides
Alternative Parents Inorganic salts  Inorganic oxides  Inorganic nitrides  
Molecular FrameworkNot available
Substituents Alkali metal fluoride - Inorganic nitride - Inorganic oxide - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as alkali metal fluorides. These are inorganic compounds in which the largest halogen atom is fluorine, and the heaviest metal atom is an alkali metal.
External Descriptors Not available
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.

9 results found

Lot NumberCertificate TypeDateItem
L2524536Certificate of AnalysisNov 19, 2025 P160352
L2524537Certificate of AnalysisNov 19, 2025 P160352
L2529368Certificate of AnalysisNov 19, 2025 P160352
C23241578Certificate of AnalysisMar 13, 2023 P160352
C23241582Certificate of AnalysisMar 13, 2023 P160352
C23241583Certificate of AnalysisMar 13, 2023 P160352
C23241584Certificate of AnalysisMar 13, 2023 P160352
C23241585Certificate of AnalysisMar 13, 2023 P160352
C2309665Certificate of AnalysisFeb 23, 2023 P160352
Chemical and Physical Properties
SolubilitySoluble in water
Melt Point(°C)99-103℃
Molecular Weight219.230 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count7
Rotatable Bond Count2
Exact Mass218.887 Da
Monoisotopic Mass218.887 Da
Topological Polar Surface Area86.000 Ų
Heavy Atom Count10
Formal Charge0
Complexity235.000
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
Citations of This Product
References
1. Wei Zhao, Yiwei Zheng, Meng Jiang, Tingting Sun, Aibin Huang, Lianjun Wang, Wan Jiang, Qihao Zhang.  (2023)  Exceptional n-type thermoelectric ionogels enabled by metal coordination and ion-selective association.  Science Advances,  (43):   [PMID:37878706] [10.1126/sciadv.adk2098]
2. Zhen Feng, Ruoxuan Chen, Rui Huang, Fangli Zhang, Weizhen Liu, Sailin Liu.  (2023)  Electrolyte Solvation Structure Manipulation and Synthetic Optimization for Enhanced Potassium Storage of Tin Phosphide/Carbon Alloy-Based Electrode.  Metals,  13  (4): (658).  [PMID:] [10.3390/met13040658]
3. Gong Cheng, Zhang Cong, Zhuang Qixin, Li Haiyun, Yang Hua, Chen Jiangzhao, Zang Zhigang.  (2022)  Stabilizing Buried Interface via Synergistic Effect of Fluorine and Sulfonyl Functional Groups Toward Efficient and Stable Perovskite Solar Cells.  Nano-Micro Letters,  15  (1): (1-14).  [PMID:36580128] [10.1007/s40820-022-00992-5]
4. Jiaming Xiong, Minghui Ye, Zhijian Wang, Jiajun Chen, Yufei Zhang, Yongchao Tang, Cheng Chao Li.  (2022)  Fast and homogeneous ion regulation toward a 4 V, high-rate and dendrite-free potassium metal battery.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2022.135927]
5. Min Wang, Qirong Liu, Guangming Wu, Jianmin Ma, Yongbing Tang.  (2021)  Coral-like and binder-free carbon nanowires for potassium dual-ion batteries with superior rate capability and long-term cycling life.  Green Energy & Environment,      [PMID:] [10.1016/j.gee.2021.03.007]
6. Chenhua Shu, Faying Lai, Feng Zhu, Dan Luo.  (2020)  Optimal extractive and reductive desulfurization process using sodium borohydride in situ generated via sodium metaborate electroreduction in ionic liquid.  Chemical Engineering and Processing-Process Intensification,      [PMID:] [10.1016/j.cep.2020.107869]
7. Guo-Guo Zhang, Pengtao Qiu, Jia-Xin Kang, Zhiwei Lu, An-Qi Zhu, Xiaohu Yu, Xuenian Chen.  (2024)  Stable solid-state potassium metal batteries enabled by a KB11H14·2Me3NBH3 complex electrolyte.  Inorganic Chemistry Frontiers,      [PMID:] [10.1039/D4QI02372B]
8. Chengzhan Yan, Xin Chao, Huaping Zhao, Shun Wang, Yong Lei.  (2024)  Synthesis of nitrogen-doped amorphous carbon nanotubes from novel cobalt-based MOF precursors for improving potassium-ion storage capability.  JOURNAL OF COLLOID AND INTERFACE SCIENCE,      [PMID:39079214] [10.1016/j.jcis.2024.07.191]
9. Ting Wang, Weifang Zhao, Ran Ren, Huilin Lan, Tengfei Zhou, Juncheng Hu, Qingqing Jiang.  (2024)  Unveiling the bifunctional roles of Cetyltrimethylammonium bromide in construction of Nb2CTx@MoSe2 heterojunction for fast potassium storage.  JOURNAL OF COLLOID AND INTERFACE SCIENCE,      [PMID:38909591] [10.1016/j.jcis.2024.06.146]
10. Wenjian Wang, Changyi Zheng, Shengjie Zhang, Yao Liu, Linjuan Zhang, Jianqiang Wang, Yonggang Wang.  (2025)  Molten Salt Electrolyte Enables Micro-Sized Silicon Anode in Lithium-Ion Batteries.  Energy & Environmental Materials,      [PMID:] [10.1002/eem2.70111]
11. Wentao Qu, Qiaotian Xiong, Yuchen Lin, Pengchao Li, Xiaoxin Peng, Jinfeng Cai, Ming Zhang.  (2025)  Fast electron boosting by surface functionalization on foldable electrodes for potassium-ion hybrid capacitors.  Journal of Energy Storage,      [PMID:] [10.1016/j.est.2025.117336]
12. Yonghuan Fu, Yulian Dong, Jingyao Huo, Miaomiao Pang, Huaping Zhao, Jinhui Hao, Yong Lei.  (2026)  Intraphase electronic coupling in Ni3Sn2S2@nitrogen-doped carbon for high-rate and durable potassium-ion batteries.  JOURNAL OF COLLOID AND INTERFACE SCIENCE,      [PMID:41724037] [10.1016/j.jcis.2026.140128]
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