Chemizorb Hydrofluoric Acid (HF) is a powder mixture consisting of a synthetic copolymer as the absorbent, a calcium salt as a neutraliser and precipitant, and a pH indicator.

• Easy to use
• pH indicator makes it possible to monitor the neutralisation process
• 150 g of Chemizorb HF is required to absorb and neutralise 100 ml of hydrofluoric acid

The neutralisation process results in the release of CO₂. When the hydrofluoric acid has been neutralised, the colour of the indicator changes from red to orange/yellow.