Hydrofluoric acid (HF) and Hydrogen Fluoride (HF) are very poisonous, highly irritating and corrosive. Hydrofluoric acid or Hydrogen Fluoride (HF) is fatal if inhaled, if swallowed, or in contact with ...

This is a major concern because lithium battery fires can be toxic. "For lithium fires we worry about hydrogen fluoride, which is a chemical that's released from these fires. In small amounts ...

The team’s approach uses a cryogenic etching process using hydrogen fluoride plasma rather than the traditional method. "Cryo etch with the hydrogen fluoride plasma showed a significant increase ...