Description

Potassium Nonafluoro-1-Butanesulfonate is a high-purity, fluorinated anionic surfactant and electrolyte salt of significant industrial importance. Its unique perfluorobutyl chain and sulfonate group impart exceptional chemical stability, surface activity, and ionic conductivity. This compound is essential for manufacturers in advanced electronics, specialty polymer synthesis, and high-performance surface treatment formulations, where its properties enable enhanced product performance and reliability.

Application

• Lithium-Ion Battery Electrolytes: As a key electrolyte additive or co-salt to improve thermal stability, cycle life, and safety of high-voltage cathodes.
• Fluorinated Surfactants & Coatings: Serves as a critical raw material for synthesizing high-performance, oil- and water-repellent coatings for textiles, paper, and membranes.
• Electroplating & Metal Finishing: Used in specialty electroplating baths for depositing metals with improved uniformity and reduced surface tension.
• Polymerization Aid: Acts as an emulsifier or catalyst component in the production of fluoropolymers like PTFE (Teflon™) and other specialty plastics.
• Chemical Synthesis Intermediate: Employed in organic synthesis to introduce the perfluorobutanesulfonyl (nonaflyl) group, a valuable building block in pharmaceutical and agrochemical research.
• Analytical Chemistry: Utilized as a mobile phase additive or ion-pairing agent in High-Performance Liquid Chromatography (HPLC) for separating complex mixtures.

Basic Information

Item	Details
Product Name	Potassium Nonafluoro-1-Butanesulfonate
CAS No.	29420-49-3
Molecular Formula	C4F9KO3S
Molecular Weight	338.19 g/mol
Synonyms	Potassium Perfluorobutanesulfonate; Potassium Nonaflyl Sulfonate; Potassium 1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-Sulfonate; PFBS-K; KNfS; C4-Perfluorosulfonate Potassium Salt; Potassium Heptadecafluoro-1-Butanesulfonate (obsolete); K+ CF3(CF2)3SO3-
EINECS	Contact for details

Quality Control

Our Potassium Nonafluoro-1-Butanesulfonate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and ICP-MS for trace metal analysis, to ensure it meets the stringent requirements of advanced material and battery applications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
pH (5% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 10 ppm
Fluoride Ion (F⁻)	≤ 100 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.