Potassium hydrogen difluoride
Potassium hydrogen difluoride (CAS 7789-29-9), with the chemical formula KHF2, is a potassium salt of hydrofluoric acid. This white crystalline solid possesses a molecular weight of 78.10 g/mol. It is primarily utilised as a fluorinating agent in chemical synthesis and as a source of fluoride ions in various industrial and laboratory applications. Its properties make it a valuable reagent in specific chemical processes.
Fluorinating Agent
Potassium hydrogen difluoride serves as a key reagent for introducing fluorine atoms into organic molecules. It is employed in the synthesis of various organofluorine compounds essential in pharmaceuticals and agrochemicals.
Chemical Synthesis
This compound is widely used in general chemical synthesis for reactions requiring a source of fluoride ions or for specific transformations where its unique reactivity is beneficial.
Etching Agent
In certain specialised applications, potassium hydrogen difluoride can be utilised for etching processes, particularly in the electronics industry for preparing semiconductor materials.
Electrolyte Component
Its ionic nature allows it to be considered as a component in electrolyte formulations for specific electrochemical applications, contributing to conductivity.
| Molecular weight | 78.10 |
|---|---|
| Linear formula | KHF2 |
| Assay | ≥99.0% (F) |
| Grade | purum p.a. |
| Density | 2.37 g/mL at 25 °C(lit.) |
| Concentration | 3.0 M in H2O |
| Melting point | 239 °C(lit.) |
Hazard statements
- H301Toxic if swallowed
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1811 8/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,C |
| Risk statements (R) | 25-34 |
| Safety statements (S) | 22-26-37-45 |
| Cation traces | Ca: ≤50 mg/kgCd: ≤50 mg/kgCo: ≤50 mg/kgCu: ≤50 mg/kgFe: ≤50 mg/kgNa: ≤5000 mg/kgNi: ≤50 mg/kgPb: ≤50 mg/kgZn: ≤50 mg/kg |
| Anion traces | chloride (Cl-): ≤100 mg/kgsulfate (SO42-): ≤100 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Potassium hydrogen difluoride used for?
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Potassium hydrogen difluoride is primarily used as a fluorinating agent in chemical synthesis and as a source of fluoride ions in various industrial and laboratory applications.
What is the CAS number and chemical formula for Potassium hydrogen difluoride?
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The CAS number for Potassium hydrogen difluoride is 7789-29-9, and its chemical formula is KHF2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium hydrogen difluoride in a purum p.a. grade with an assay of ≥99.0% (F). We do not represent this product as USP, BP, or EP grade.
How should Potassium hydrogen difluoride be handled safely?
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Potassium hydrogen difluoride is a Danger hazard (GHS05, GHS06), associated with H301 (Toxic if swallowed) and H314 (Causes severe skin burns and eye damage). Always use appropriate personal protective equipment, including eyeshields, face shields, gloves, and a suitable respirator, and handle in a well-ventilated area. Refer to the Safety Data Sheet for detailed handling procedures.
Is Potassium hydrogen difluoride a controlled substance?
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Based on the provided data, Potassium hydrogen difluoride is classified under UN 1811 with hazard class 8, indicating it is corrosive. It is not explicitly listed as a controlled substance in this data, but users should verify local regulations.
How is Potassium hydrogen difluoride packed and exported?
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Potassium hydrogen difluoride is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions, adhering to all necessary shipping regulations for hazardous materials.
How can I request a sample or quote for Potassium hydrogen difluoride?
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To request a sample or a quote for Potassium hydrogen difluoride, please contact our sales team through the website or via direct inquiry, providing your specific requirements.
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