Potassium Fluoride, Potassium Fluoride Anhydrous, 7789-23-3, 12178-06-2

Potassium Fluoride, Potassium Fluoride Anhydrous, 7789-23-3, 12178-06-2

POTASSIUM FLUORIDE (ANHYDROUS)

PRODUCT IDENTIFIER INFORMATION

CHEMICAL STRUCTURE

    K⁺  F⁻
    
    Potassium Fluoride (KF)
    Ionic Structure

Potassium Fluoride Molecular Structure

Molecular Formula: KF
SMILES: [F-].[K+]
InChI: 1S/FH.K/h1H;/q;+1/p-1
InChIKey: NROKBHXJSPEDAR-UHFFFAOYSA-M
BRN Number: 3902818

SECTION 1: CHEMICAL IDENTITY AND DESCRIPTION

SECTION 2: PHYSICAL AND CHEMICAL PROPERTIES

SECTION 3: CHEMICAL PROPERTIES AND REACTIVITY

SECTION 4: PRODUCTION METHOD

Neutralization Method (Most Common):

Reaction:

KOH + HF → KF + H₂O

or

K₂CO₃ + 2HF → 2KF + H₂O + CO₂

Process:

1. Solid potassium hydroxide is dissolved in an equal amount of water in a neutralization tank

2. Anhydrous hydrofluoric acid (or 40% hydrofluoric acid) is introduced

3. Reaction is carried out until pH = 7-8

4. Anhydrous hydrofluoric acid feed is stopped

5. The solution is allowed to settle for 24 hours

6. The clear liquid (containing about 40% potassium fluoride) is obtained

7. The clear liquid is sent to a vacuum evaporator for vacuum concentration (pressure: 79993 Pa)

8. When most crystals are present in the solution, filtration is carried out (pressure: 0.2-0.3 MPa)

9. Vacuum drying is performed (pressure: 79993 Pa) for 6 hours

10. Potassium fluoride product is obtained

Process Notes:

• Temperature control is important to prevent decomposition

• Anhydrous hydrofluoric acid is used for anhydrous product

• Vacuum concentration and drying are critical for purity

• Proper ventilation and corrosion-resistant equipment are required

SECTION 5: FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION

SECTION 6: MAIN APPLICATION AREAS

SECTION 7: QUALITY SPECIFICATIONS (TECHNICAL GRADE - ANHYDROUS)

SECTION 8: TOXICOLOGICAL PROFILE

SECTION 9: GHS CLASSIFICATION AND LABELING

GHS Classification (according to 1272/2008/EC and UN GHS):

Signal Word: DANGER

Hazard Pictograms: GHS06 (Skull and Crossbones), GHS05 (Corrosion), GHS07 (Exclamation Mark)

Hazard Statements (H-Codes):

Risk Codes:

Safety Descriptions:

NFPA 704 Hazard Classification:

SECTION 10: PRECAUTIONARY STATEMENTS (P-CODES)

SECTION 11: FIRST AID MEASURES

SECTION 12: FIRE-FIGHTING MEASURES

SECTION 13: STORAGE AND SHELF LIFE

SECTION 14: PACKAGING OPTIONS

SECTION 15: TRANSPORT INFORMATION

SECTION 16: REGULATORY STATUS

SECTION 17: OTHER NAMES AND SYNONYMS

SECTION 18: DOWNSTREAM PRODUCTS

SECTION 19: SUMMARY TABLE

SECTION 20: CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

• Toxic if swallowed, inhaled, or in contact with skin (H301/H331/H312). LD50: 245 mg/kg (oral, rat).

• Causes severe skin burns and eye damage (H314/H318). Use full PPE.

• Strong destructive effect on mucous membranes, upper respiratory tract, eyes, and skin tissue.

• Inhalation may be fatal due to laryngeal and bronchial inflammation, edema, spasm, chemical pneumonia and pulmonary edema.

• Poisoning symptoms: Burning, cough, wheezing, laryngitis, shortness of breath, headache, nausea, vomiting.

• Corrodes glass and porcelain. Do not store in glass containers; use plastic containers.

• Highly hygroscopic and deliquescent. Absorbs moisture from air; store in tightly closed containers.

• Incompatibilities: Strong acids, strong bases, glass, porcelain, moisture, oxidizing agents.

• This substance is harmful to the environment. Special attention should be paid to pollution of water bodies.

• Do not store with edible chemical products, acids and alkalis.

BEST PRACTICE RECOMMENDATIONS:

• Organic Fluorine Chemistry: Use as fluorinating agent for halogen exchange reactions; ensure anhydrous conditions for optimal reactivity; use under inert atmosphere when required.

• Glass Etching: Use for glass engraving and etching; handle with extreme care; use plastic or PTFE equipment.

• Metal Processing: Use as welding flux; ensure proper ventilation and PPE.

• Handling: Use in well-ventilated areas or under fume hood; wear chemical-resistant gloves (neoprene, butyl rubber), safety goggles, face shield, and appropriate respiratory protection; avoid creating dust.

• Personal Protective Equipment: Wear chemical safety glasses, suitable protective clothing, chemical protective gloves; use respirator when airborne concentration exceeds standards; for emergency rescue, use self-contained breathing apparatus.

• Hygiene: Do not eat, drink or smoke at work; shower and change clothes after work; work clothes should not be taken to non-work sites; maintain good hygiene practices.

• Storage: Store in tightly closed, properly labeled plastic containers in cool, dry, well-ventilated conditions; keep away from heat, acids, glass, and moisture; store separately from edible chemical products, acids and alkalis.

• Spill Response: Avoid creating dust; wear full PPE; vacuum or wet sweep; place in sealed plastic containers for disposal; neutralize with appropriate alkaline materials; do not use acids (releases HF gas).

• Disposal: Dispose of in accordance with local, regional, and national regulations; do not discharge into drains or water bodies; fluoride compounds are regulated as hazardous waste.

• Wastewater Treatment: Treat fluoride-containing wastewater by: (1) Calcium salt precipitation method; (2) Calcium salt-aluminum sulfate co-precipitation method; (3) Calcium salt-phosphate method.

LEGAL DISCLAIMER:

The information provided in this document is based on our current knowledge and experience and is presented in good faith. However, as all conditions of use are beyond our control, it does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing the suitability of the product for their specific applications. For complete safety, storage, use, handling, waste, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.