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Overview
Potassium bifluoride (KHF2, CAS 7789-20-0) is a white crystalline salt produced by reacting potassium fluoride with hydrogen fluoride. It serves as a critical source of anhydrous HF in industrial processes.
Application
- Etching: Glass and ceramic surface treatment for frosted finishes.
- Metal Cleaning: Removal of oxides from stainless steel and aluminum prior to plating.
- Catalyst: Used in organic synthesis for esterification reactions.
Precautions
- Toxicity: Highly corrosive; causes severe skin burns and respiratory damage.
- Storage: Keep in sealed, moisture-proof containers away from water and acids.
- Safety: Mandatory use of acid-resistant PPE and ventilation systems required.